Due to the constraint of high costs and limitations of load conditions, experimental testing is not appropriate for the static study of shelter structures. Comparatively, an effective computational modeling and numerical solution demonstrates significant advantages for understanding the response of steel shelter structures. This study gives an insight into the structural integrity of the prototype shelter structure which is examined using computer simulation of the shelter structure on Abaqus/CAE 2019. The results of the computer modelling demonstrate the response of shelter structure under ten different loading conditions as per ISO 1496:2013 (E). The loading conditions are applied to various components of the shelter structure and corresponding deflection are observed.

In today’s packaging industry HDPE is widely used and correct understanding of itsproperties and how to model them is of vital importance. HDPE is a semi-crystallinepolymer with a known strain rate dependence, that is a higher yield and lower strainto failure at higher strain rates. HDPE does also exhibit the phenomena of cold-drawing, together with other polymers. Cold-drawing is where after the specimenhas necked, the necking stabilizes and starts to pull material above and below intothe neck, effectively elongating the neck while maintaining its width. The objective of the study is to look at the local strain rates as the specimen necksand if a simple Abaqus model can capture those effects. The effect of strain rate onthe shape of the neck was also studied. The work was to test HDPE in uniaxial tension with different strain rates (∼10-3 s-1to ∼10-1 s-1) and measure the local strain rates with 2D-DIC. A decent amount oftime was used to make sure the camera setup gave the best quality possible for theequipment available. The videos produced was used for the DIC analysis as well asfor the image analysis to measure the width of the neck. After the tests a calibrationscheme was used to create a material model that matched the force-displacementfrom the physical 100 mm/min test data. Studying the force displacement the strain rate effects noted in previous researchare present. The results from the DIC show a very high local strain rate as the spec-imen necks, between 11-65 times higher than the global (grip-to-grip) strain rate.From the measurement of the width there are some rate effects as well. The slowerspeeds (5 and 10 mm/min) shows a continually reducing width while the 50 and 100mm/min shows a more stable neck and the 500 mm/min test does not have any sig-nificant neck propagation. The simple elastic-plastic model show similar local strainrates as the experiment however does show a noticeable thinner neck. / I dagens förpackningsindustri används HDPE ofta och korrekt förståelse av dess egenskaper och hur man modellerar dem är av avgörande betydelse. HDPE är ensemikristallin polymer med ett känt töjningshastighetsberoende, det vill säga en hö-gre sträckgräns och lägre töjning till brott vid högre töjningshastigheter. HDPEuppvisar också fenomenet kalldragning, tillsammans med andra polymerer. Kall-dragning är det fenomen som uppstår efter att provet har påbörjat midjebilding ochmaterial börjar dras in i midjan, vilket leder till en förlängd midja. Syftet med studien var att titta på de lokala töjningshastigheterna under midje-bildning och om en enkel Abaqus-modell kan fånga dessa effekter. Effekten av töjn-ingshastighet på midjan form studerades också. Arbetet började att testa HDPE i enaxlig spänning med olika töjningshastigheter(∼10-3 s-1 till ∼10-1 s-1) och mäta de lokala töjningshastigheterna med 2D-DIC. Endel tid lades ner på att se till att kamerauppsättningen gav högsta möjliga kvaliteti förhållande till den utrustning som användes. Filmen från testerna användes bådeför DIC och en bildanalys för att mäta bredden på midjan. Efter testerna använ-des ett kalibreringsschema för att skapa en materialmodell för att matcha kraft-förskjutningskurvan från det fysiska 100 mm/min-testet. Genom att studera kraft-förskjutning är effekterna av töjningshastigheten som noter-ats i tidigare forskning närvarande. Resultaten från DIC visar en mycket hög lokaltöjningshastighet under midjebildning, mellan 11-65 gånger högre än den globala(grepp-till-grepp) töjningshastigheten. Från mätningen av bredden finns det ocksåvissa hastighetseffekter. De lägre hastigheterna (5 och 10 mm/min) visar en kon-tinuerligt minskande bredd, 50 och 100 mm/min visar en stabilare midja och 500mm/min-testet har ingen signifikant kalldragning. Den enkla elasto-plastmodellenvisar liknande lokala töjningshastigheter som experimentet men de visar en märk-bart tunnare midja.

[pt] A construção de poços através de formações salinas continua sendo um grande desafio na engenharia de perfuração em muitas províncias petrolíferas ao redor do mundo, notadamente offshore no Brasil, devido às suas propriedades mecânicas únicas, em particular, sua alta mobilidade de fluência sob condições de fundo de poço. Inicialmente, é necessário controlar o fechamento do poço durante a perfuração para permitir a instalação do revestimento. Mais tarde, o carregamento do revestimento nas seções cimentadas e não cimentadas é motivo de preocupação para evitar problemas de integridade do poço a longo prazo. No entanto, ocontato do sal com o revestimento pode fornecer uma barreira natural necessária e economicamente benéfica. Este trabalho consiste em extratos do projeto de pesquisa Avaliação do potencial de formações argilosas e evaporíticas atuarem como barreira externa ao revestimento para o abandono de poços, realizado pelo Grupo de Tecnologia e Engenharia de Petróleo (GTEP) da Pontifícia Universidade Católica do Rio de Janeiro, Brasil. O objetivo deste trabalho é modelar o fechamento de um poço em sal ao longo de zonas de revestimento não cimentadas considerando anular aberto. Para isso, foi desenvolvida uma metodologia computacional, utilizando o código comercial de elementos finitos ABAQUS. Na primeira etapa, a fim de validar o protocolo de simulação, apresenta-se a reprodução de estudos sobre a formação de barreiras naturais em sal, reportados na literatura, considerando os modos de pequena e grande deformação do ABAQUS. A comparação entre os resultados obtidos demonstra uma diferença de tempo para o fechamento anular variando de alguns meses a alguns anos, dependendo da profundidade e do tipo de sal. Discussões sobre aspectos específicos da simulação de fluência em rochas salinas também são feitas nesta etapa. Na segunda etapa, é apresentada uma análise para estimar o tempo de fechamento do poço em condições de campo representativas das bacias brasileiras, acoplando os ajustes realizados na etapa anterior. O comportamento constitutivo do sal utilizado para simular a fluência em regime permanente foi o modelo de mecanismo duplo e os parâmetros são representativos do cenário offshore brasileiro. Como resultado, observa-se o potencial de formação de barreiras naturais em camadas salinas para operações de tampão permanente e abandono. Em ambas as simulações, o fechamento anular é feito utilizando modelos 2D de estado plano de deformação e axissimétrico, representando a seção transversal e longitudinal, respectivamente. As etapas de simulação são divididas em campo de tensão de equilíbrio inicial (geostática) seguido de perfuração e fluência simulada como um material viscoelástico. / [en] Wellbore construction through salt formation remains a great challenge in drilling engineering in many oil provinces around the world, notably offshore Brazil, due to its unique mechanical properties, in particular, its high creep mobility under downhole conditions. Initially, it is necessary to control wellbore closure during drilling in order to allow casing installation. Later, the loading of the casing in both the cemented and uncemented sections is cause of concerns to prevent issues of long-term wellbore integrity. However, the contact between the salt and the casing can provide a necessary and economically beneficial natural barrier. This work consists of extracts of the research project Evaluation of the potential of clayey and evaporitic formations to act as an external barrier to the casing for the abandonment of wells, carried out by the Group of Technology and Petroleum Engineering (GTEP) at the Pontifical Catholic University of Rio de Janeiro, Brazil. The aim of this work is to model wellbore closure in salt throughout uncemented casing zones considering open annular. For this, a computational methodology was developed, using the commercial finite element code ABAQUS. As the first stage of the study, in order to validate the simulation protocol, the reproduction of studies about the formation of natural barriers in salt, reported in the literature, is presented, considering the small and large deformation modes of the ABAQUS. The comparison between the results obtained demonstrates a time difference for annular closure ranging from a few months to a few years, depending of depth and type of salt. Discussions on specific aspects of creep simulation in salt rocks are also made at this stage. In the second stage of the work, is presented an analysis to estimate the wellbore closure time under field conditions representative of the Brazilian basins, coupling the adjustments made in the previous stage. The salt constitutive behavior used to simulate the steady-state creep was double mechanism model and the parameters are representative of the Brazilian offshore scenario. As a result, it is observed the potential for the formation of natural barriers in saline layers for permanent plug and abandonment operations. In both simulations, annular closure is performed using 2D models of plane strain and axisymmetric, representing the cross section and longitudinal section, respectively. The simulation steps are divided into initial equilibrium stress field (geostatics) followed by drilling and simulated creep as a viscoelastic material.

Den världsledande stålproducenten Ovako Group AB tillverkar valsade stålstänger i sin produktion i Hällefors. De färdigvalsade stängerna klipps efter nedkylning i luft enligt kundlängd, vilket i vissa fall har visat sig resultera i defekter vid ändarna. Mindre och övergripande statiska analyser av klipprocessen tyder på att dessa uppstår för vissa typer av stålsorter vid för höga och för låga temperaturer. De defekta ändarna behöver justeras genom räddningsuppdrag som kräver extra resurser och tid. Eftersom Ovako har upprättat långsiktiga klimatmål i form av reducerat klimatavtryck, vilket kan uppnås genom besparingar av resurser, inleder de nu ett arbete mot att optimera klipprocessen och minimera antalet defekter.Denna studie avser undersöka om det går att simulera klipprocessen för en av Ovakos stålstänger med hjälp av den finita elementmetoden och mjukvaran Abaqus. Det långsiktiga syftet med detta är att genom vidare arbeten, om detta visar sig vara möjligt, hitta optimala klipptemperaturer för olika typer av stålstänger med målet att reducera resursanvändningen och därtill Ovakos klimatavtryck. De frågeställningar som studien ämnar besvara är därmed; Kan verkliga defekter från kallklippning av stålstänger vid olika temperaturer simuleras? och Inom vilket temperaturintervall går det att klippa en stålstång utan defekter?Studien tyder på att det går att göra verklighetstrogna simuleringar för klipp av upphettade stålstänger i Abaqus då godtyckliga materialparametrar införs. Det fastställdes även att kompletterande primärdata behövs för att öka validiteten av resultaten från experimenten, speciellt vid undersökningar av en specifik stålsort. Denna slutsats kan tillämpas i vidare arbeten för att i kombination med utökad mekanisk data hitta optimala klipptemperaturer för flera typer av stålstänger. / The world-leading steel producer Ovako Group AB manufactures rolled steel bars at their production in Hällefors. The rolled rods are cut after cooling in air according to customer length, which in some cases has been shown to result in defects at the ends. Scarce and comprehensive static analyzes of the cutting process indicate that these occur for certain types of steels at too high and low temperatures. The defect ends need to be adjusted through rescue missions that require extra resources and time. Since Ovako has set long-term climate goals in the form of a reduced climate footprint, which can be achieved through savings in resources, they are now initiating work towards optimizing the cutting process and minimizing the number of defects.This study aims to investigate whether it is possible to simulate the cutting process for one of Ovakos steel rods using the finite element method and the Abaqus software. The long-term purpose of this is to, through further work and if it proves to be possible, find optimal cutting temperatures for different types of steel bars with the aim of reducing resource use and, in addition, Ovako's climate footprint. The questions that the study intends to answer are thus; Can real defects from cold cutting of steel bars at different temperatures be simulated? and Within what temperature range is it possible to shear cut a steel rod without defects?The study indicates that it is possible to make realistic simulations for cutting heated steel rods in Abaqus when arbitrary material parameter values  are introduced. It was also determined that additional primary data are needed to increase the validity of the results from the experiments, especially in studies of a specific type of steel. This conclusion can be applied in further work to find optimal cutting temperatures for several types of steel bars in combination with extended mechanical data.

L’objectif de ce travail est double : d’une part, il s’agit de développer une méthodologie intégrée pour la construction d’un modèle géomécanique ainsi que la représentation des incertitudes associées aux propriétés poro-élastiques des roches constitutives, en exploitant l’ensemble des données disponibles et en s’appuyant de façon cohérente sur les modèles de réservoir statique et dynamique classiquement utilisés par les géologues et les ingénieurs réservoir ; d’autre part, il s’agit d’analyser quel est l’impact des hétérogénéités géologiques, souvent négligées, dans la réponse mécanique du réservoir sollicité par son exploitation, et d’aboutir à des incertitudes sur les champs de contraintes et de déplacements, issues des incertitudes sur ces hétérogénéités et leurs paramètres mécaniques. Pour ce faire, une méthodologie intégrée s’appuyant sur des simulations géostatistiques a été développée. Après la construction du cadre géométrique 3D, le remplissage des propriétés au sein du réservoir suit une démarche de simulations géostatistiques 3D emboîtées, dans laquelle la représentation des hétérogénéités lithologiques conditionne la génération des propriétés poro-élastiques. La démarche consiste ensuite à représenter les incertitudes sur le modèle géomécanique par des ensembles de réalisations géostatistiques dont la réponse mécanique est alors calculée avec un simulateur mécanique aux éléments finis. Les incertitudes sur les champs de contraintes et de déformations sont déduites ensuite des différentes réponses mécaniques obtenues. La démarche a été mise en œuvre sur un réservoir réel, dans un environnement fluvio-deltaïque, produisant en Mer du Nord. Dans ce cadre, il a été démontré que les hétérogénéités du réservoir et leurs incertitudes influencent significativement les calculs des champs de contraintes et de déformations, ainsi que les risques mécaniques de rupture. Des incertitudes sur les quantités mécaniques analysées (premier invariant du tenseur des contraintes et subsidence) ont été aussi estimées / This work has two main objectives. The first one is to develop an integrated methodology allowing to build a 3D geomechanical model and also to image the uncertainties attached to the poro-mechanical properties of the constitutive rocks. This geomechanical model should be based on all related available data and should be consistent with the static and dynamic models, currently built by reservoir geologists and engineers. The second objective is to analyse the impact of geological heterogeneities, which are often neglected, in the mechanical response of the reservoir induced by its exploitation, and furthermore to derive uncertainties on the stress and deformation fields related to the uncertainties on the input properties of the geomechanical model. An integrated methodology based on geostatistical simulations is developed. First, the geometric frame is built; then an approach of embedded stochastic simulations is carried out to infill the different reservoir properties, the lithological description constraining the petrophysical and poro-elastic descriptions. The next step is to generate the mechanical responses of the stochastic realisations, using a finite-element mechanical simulator. The uncertainties on the resulting stress and displacement fields are then deduced from the multiple mechanical responses which are computed. This approach is demonstrated on a real field case, a fluvio-deltaic reservoir in North Sea. It is shown on this example that the reservoir heterogeneities and their uncertainties significantly influence the calculations of stress and strain fields, and also the risks of mechanical failure. Uncertainties on the mechanical quantities under analysis (first invariant of the stress tensor and subsidence) are also derived

[pt] Construção de barragens de terra é uma atividade milenar, empregada com o objetivo de atender às mais diversas necessidades humanas como o armazenamento de água, irrigação, regularização de cursos d água, geração de enregia elétrica, etc. Ao longo da história, o projeto destas obras de terra passou de conceito simples, baseados em técnicas empíricas e regras intuitivas, para as análises modernas que consideram o comportamento da barragem em suas diversas fases de vidas (construção, enchimento do reservatório, regime de plena operação), sob carregados estáticos e sísmicos, condições de contorno complexas e sofisticadas relações constitutivas dos materiais da estrutura e do maciço de fundação. Nesta trabalho a construção, primeiro enchimento do reservatório e a resposta sísmica da barragem de terra de Pomacocha, Peru, são analisados pelo método dos elementos finitos, utilizando o software ABAQUS (versus 6.3). Os campos de tensão e de deslocamentos para diversos estágios de aplicação dos carregamentos estático e sísmico são apresentados, incluindo-se histórias de deformação e de tensão para determinados pontos do corpo da barragem e do solo de fundação. / [en] Dam construction is a millenary activity, carried out with the objective of fulfilling human necessities as water supply, land irrigation, water flow regularization, electric power generation, etc. Along the history, the design of these earthworks evolved from simple concepts, based on empirical techniques and rules of thumb, to modern analyses that consider all phases of a dam s life (construction, first reservoir filling, full operation) understatic and seismic loads, as well as complex boundary conditions and sophisticated constitutive relationships for the structure itself and the foundation mass. In this work, the construction, first reservoir filling and the seismic response of the Pomacocha Dam, located in Peru, are analyzed by the finite element method using the software ABAQUS (version 6.2). At several loading stages the corresponding stress and displacement are presented as well as, for some specific points in the dam body and in the foundation soil, the characteristic stress and strain histories during the static and seismic loads.

As vigas mistas de madeira e concreto são formadas pela união de vigas de madeira a lajes de concreto armado por meio de conectores de cisalhamento. Quando os pisos mistos de madeira e concreto são comparados aos pisos construídos unicamente em madeira ou àqueles confeccionados somente em concreto armado é possível destacar algumas vantagens, incluindo o bom desempenho em situações de incêndio. Os elementos estruturais quando submetidos a ações térmicas sofrem redução de resistência e rigidez, sendo, desta forma, necessário conhecer as modificações sofridas por cada um de seus componentes, que para o caso estudado são: a madeira, o concreto e os conectores de cisalhamento. Desta forma, foi elaborada uma estratégia de modelagem numérica para o estudo de vigas mistas de madeira e concreto em situação de incêndio, utilizando o programa computacional ABAQUS, o qual é baseado no método dos elementos finitos. Em uma primeira etapa da pesquisa foram realizadas modelagens numéricas de vigas de madeira e mistas de madeira e concreto em temperatura ambiente, encontrando-se boa correlação entre as curvas força versus deslocamento no meio do vão obtida numericamente e por meio de ensaios disponíveis na literatura. Em seguida procedeu-se a calibração das propriedades térmicas e mecânicas da madeira brasileira, alcançando-se resultados numéricos próximos aos experimentais, seja em relação às temperaturas do elemento analisado seja em relação à curva de deslocamento vertical em função do tempo de incêndio. Por fim, a estratégia de modelagem termoestrutural desenvolvida para a viga mista de madeira e concreto forneceu curva de deslocamento vertical em função do tempo de incêndio semelhante à curva obtida por meio de modelo analítico disponível na literatura. Por meio do modelo elaborado foi possível observar que a elevação do nível de carregamento reduz o tempo de resistência do elemento estrutural e que a proteção térmica do concreto é essencial para aumentar o tempo até a ruptura da viga. / Timber-concrete composite beams are formed by the union of timber beams to reinforced concrete slabs through of shear connectors. When timber-concrete composite floors are compared to timber floors or reinforced concrete floors it is possible to highlight some advantages, including good performance in fire situations. When subjected to thermal actions, structural elements suffer strength and stiffness reductions, being, therefore, necessary to know the modifications suffered by each of its components, which for the case studied are: timber, concrete and shear connectors. Thus, it is developed a numerical modeling strategy using the computational program ABAQUS, which is based on the finite element method, for the study of timber-concrete composite beams in fire situation. In the first stage of the research it was carried out a numerical modeling of timber beam and timber-concrete composite beam at room temperature, finding good correlation between the force versus displacement curves in the middle of the span obtained numerically and through tests available in the literature. Then, it was carried out the calibration of the thermal and mechanical properties of the Brazilian wood, reaching numerical results close to the experimental ones, either in relation to the temperatures of the analyzed element or in relation to the vertical displacement curve as a function of the fire time. Finally, the thermo-structural modeling strategy developed for the timber-concrete composite beam provided a vertical displacement curve as a function of the fire time similar to the curve obtained through an analytical model available in the literature. Through of the elaborated model it was possible to observe that the load level increase reduces the resistance fire time of the structural element and that the thermal protection of the concrete is essential to increase the rupture time of the beam.

As vigas mistas de madeira e concreto são formadas pela união de vigas de madeira a lajes de concreto armado por meio de conectores de cisalhamento. Quando os pisos mistos de madeira e concreto são comparados aos pisos construídos unicamente em madeira ou àqueles confeccionados somente em concreto armado é possível destacar algumas vantagens, incluindo o bom desempenho em situações de incêndio. Os elementos estruturais quando submetidos a ações térmicas sofrem redução de resistência e rigidez, sendo, desta forma, necessário conhecer as modificações sofridas por cada um de seus componentes, que para o caso estudado são: a madeira, o concreto e os conectores de cisalhamento. Desta forma, foi elaborada uma estratégia de modelagem numérica para o estudo de vigas mistas de madeira e concreto em situação de incêndio, utilizando o programa computacional ABAQUS, o qual é baseado no método dos elementos finitos. Em uma primeira etapa da pesquisa foram realizadas modelagens numéricas de vigas de madeira e mistas de madeira e concreto em temperatura ambiente, encontrando-se boa correlação entre as curvas força versus deslocamento no meio do vão obtida numericamente e por meio de ensaios disponíveis na literatura. Em seguida procedeu-se a calibração das propriedades térmicas e mecânicas da madeira brasileira, alcançando-se resultados numéricos próximos aos experimentais, seja em relação às temperaturas do elemento analisado seja em relação à curva de deslocamento vertical em função do tempo de incêndio. Por fim, a estratégia de modelagem termoestrutural desenvolvida para a viga mista de madeira e concreto forneceu curva de deslocamento vertical em função do tempo de incêndio semelhante à curva obtida por meio de modelo analítico disponível na literatura. Por meio do modelo elaborado foi possível observar que a elevação do nível de carregamento reduz o tempo de resistência do elemento estrutural e que a proteção térmica do concreto é essencial para aumentar o tempo até a ruptura da viga. / Timber-concrete composite beams are formed by the union of timber beams to reinforced concrete slabs through of shear connectors. When timber-concrete composite floors are compared to timber floors or reinforced concrete floors it is possible to highlight some advantages, including good performance in fire situations. When subjected to thermal actions, structural elements suffer strength and stiffness reductions, being, therefore, necessary to know the modifications suffered by each of its components, which for the case studied are: timber, concrete and shear connectors. Thus, it is developed a numerical modeling strategy using the computational program ABAQUS, which is based on the finite element method, for the study of timber-concrete composite beams in fire situation. In the first stage of the research it was carried out a numerical modeling of timber beam and timber-concrete composite beam at room temperature, finding good correlation between the force versus displacement curves in the middle of the span obtained numerically and through tests available in the literature. Then, it was carried out the calibration of the thermal and mechanical properties of the Brazilian wood, reaching numerical results close to the experimental ones, either in relation to the temperatures of the analyzed element or in relation to the vertical displacement curve as a function of the fire time. Finally, the thermo-structural modeling strategy developed for the timber-concrete composite beam provided a vertical displacement curve as a function of the fire time similar to the curve obtained through an analytical model available in the literature. Through of the elaborated model it was possible to observe that the load level increase reduces the resistance fire time of the structural element and that the thermal protection of the concrete is essential to increase the rupture time of the beam.

The purpose of this master thesis has been to investigate the possibility to increase the damping capacity of shear walls with the use of glue in combination with nails. It has been done with experiment and with FE-simulations.   The first experimental part is tensile tests of four different glue types which have been analyzed to get material data. The second experimental part is analysis of glued-nail joint in shear test. FE-simulations of glued-nail joints are finally done in Abaqus/CAE.   The experiments in shear tests of glued-nail joints showed that two glues failed and could not be used for further analysis. The two other glues had an increase in damping capacity compared with results from nail joint.   Further FE-simulations of glued-nailed joints have to be done in order to calibrate the FE-model with the results of glued-nailed joints in shear tests. The uncertainty is found in the material properties of the glue, experimental test data was not adequate. The conclusion is that glued-nail joints can increase the damping capacity in shear walls. / Damping capacity, shear wall, hysteresis, shear test, finite element method, Abaqus/CAE

Le travail principal de cette thèse consiste à proposer une nouvelle procédure d'identification inverse appliquée aux situations de mise en forme et d'usinage des métaux, qui peut fournir un ensemble de paramètres appropriés pour toute loi constitutive elastoplastique suivant le modèle de plasticité de type J_{2} avec écrouissage isotrope, en évaluant la corrélation entre les réponses expérimentales et numériques. En premier lieu, un programme d'identification a été développé, en combinant l'algorithme de Levenberg-Marquardt et des méthodes de traitement de données pour identifier les paramètres constitutifs. En termes d'expérimentation, des essais de compression et de traction dynamiques ont été effectués. La forme finale déformée des spécimens, qui repose sur une analyse post-mortem, a été choisie comme quantité d'observation. Comme pour la simulation numérique, des modèles numériques de ces mêmes procédures expérimentales ont été construits en utilisant le code éléments finis Abaqus/Explicit afin de fournir des réponses numériques. Un algorithme numérique a été proposé pour l'implémentation de lois constitutives elastoplastiques définies par l'utilisateur dans Abaqus/Explicit. / The main concern of this thesis is to propose a new inverse identification procedure applied to metal forming and machining situations, which can provide an appropriate parameters set for any elastoplastic constitutive law following J_{2} plasticity and isotropic hardening, by evaluating the correlation between the experimental and numerical responses. Firstly the identification program has been developed, which combines the Levenberg-Marquardt algorithm and the Data processing methods to optimize the constitutive parameters. In terms of experimentation, dynamic compression and tensile tests have been conducted. The final deformed shape of specimens, which relies on a post-mortem analysis, has been selected as the observation quantity. As for the numerical simulation, the numerical models of the same experimental procedure have been built with the finite element software Abaqus/Explicit in order to provide numerical responses. A numerical algorithm has been proposed for the implementation of user defined elastoplastic constitutive laws in Abaqus/Explicit.