A busca por produtos fabricados com matéria prima renovável e cuja transformação não cause impactos ambientais motivou a presente pesquisa que se refere à utilização do colmo de bambu como material lenhoso na fabricação de painéis estruturais, para uso na construção civil. O Bambu apresenta algumas vantagens em relação a outras matérias primas, pois além de ser renovável, como a madeira e crescer mesmo em área marginais, apresenta um crescimento tão rápido que permite sua utilização estrutural já a partir de 3 anos de idade. O presente trabalho foi desenvolvido com o objetivo de avaliar as propriedades físico-mecânicas de painéis à base de bambu da espécie Dendrocalamus giganteus e compará-los entre si. A variação radial dos feixes fibrovasculares dentro da parede do colmo motivou a obtenção de lâminas de duas posições consideradas anatomicamente discrepantes, próxima à epiderme e próxima à lacuna do centro do colmo. Os colmos foram processados mecanicamente de tal forma a produzirem-se lâminas externas e internas que foram coladas e prensadas, originando os painéis BLCe (Bambu laminado colado com lâminas externas) e BLCi (lâminas internas). Amostras foram retiradas desses compósitos e observadas no microscópio eletrônico de varredura (MEV) para avaliar variáveis da matéria prima e do processo de fabricação que influenciam na qualidade do painel, principalmente a adesão entre as lâminas constituintes. A resistência ao cisalhamento no plano de cola foi a propriedade mais crítica, dentre as estudadas na presente pesquisa, porque sendo baixa, influenciou negativamente no módulo de elasticidade e, mais intensamente ainda, no módulo de ruptura, ambos na flexão estática. O inchamento, que se refere à variação da espessura do painel por absorção de água, foi considerado a propriedade desfavorável do painel de bambu, pois acumulou ao inchamento das lâminas individuais afastamentos indesejados que ocorreram as camadas constituintes do painel. / The search for products manufactured with renewable raw material which can be produced through an industrialization which does not cause environmental impacts led this research work to considerate the use of bamboo culm as woody material to manufacture structural panels that can be used as construction material. Bamboo presents some advantages over other materials, because beside of being renewable as wood is and growing even in poor sites, presents so fast growth that allows the culm to be used for structural purposes from 3 years old. This study was carried out to evaluate physical and mechanical properties of bamboo based panels produced with Dendrocalamus giganteus bamboo species and comparing themselves with each other. The radial variation of fibre vascular bundles inside the bamboo culm wall had motivated taking laminas from two different positions considered anatomically discrepant, next to the epidermis and by the culm center. The culms were mechanically processed in a way to produce external and internal laminas that were glued and pressed originating the GLBe (Glued Laminate Bamboo with external laminas) and GLBi (internal laminas) panels. Specimens were taken from the composites and observed in a Scanning Electron Microscope (SEM) to evaluate raw material variables and manufacturing process variables that influence the panel quality especially the adhesion between component laminas. The shear strength on glued surface was the critical property among those studied in this research, because being low did affect the modulus of elasticity and, even more intensively, the modulus of rupture both in bending test. Swelling that refers to panel thickness variation due to absorption of water, was considered the most unfavorable property of the panel because accrued to the individual laminas swelling the unexpected displacement that pull apart the panel component layers.

This mixed methods thesis provides a cumulative study of bamboo as a natural material and building product through the lenses of architectural and product design, engineering, manufacturing, agriculture, material science, environmental science, history, and culture. All case study work is based in the context of coastal Ecuador. The main goal of the thesis is to explore an identified need for a bamboo relief housing system that has the attributes of longevity and quality, but is also rapidly deployable via pre-fabrication. This exploration is performed with the methodology of an in-country applied product and process design, physical prototyping of elements and joints, mechanical performance testing, a case study house design, and a comparative cost analysis with an alternative bamboo relief home. Results of these methods include a successful on-site fabrication process for cross-laminated floor panels installed into culm-frame structure, adequate floor system bending data for design incorporation, and a cost-effective design proposal compared to bamboo disaster-relief precedence. This thesis has the potential to be built upon to the result of real-world environmental, economic, and social impact. / Master of Science / This thesis addresses the use of bamboo in coastal Ecuador from the perspectives of architectural and product design, engineering, manufacturing, agriculture, material science, environmental science, history, and culture. Specifically focused on is the need for post-disaster bamboo housing that is factory-built, and therefore quickly deployable when needed, but also designed for durability and longevity, providing people with safe and dignified living conditions in times of severe need. It is concluded that the proposed system has merit, but will require further research and testing to prove its exact role in Ecuador and/or elsewhere. Ultimately, this work is important to solving greater global environmental issues such as increasing atmospheric CO2, increasing natural disaster frequency and intensity, and increasing human population and the accompanying housing demand.

This study was conducted as a bachelor thesis at KTH Royal Institute of Technology in the spring of 2019. The study was carried out as a Minor Field Study (MFS) funded by the Swedish agency SIDA (Swedish International Development Cooperation Agency). The study focuses on the potential economic- & ecological benefits of farming bamboo on small islands in the Philippines. Few other countries are so vulnerable for natural disasters as the Philippines. Majority of the farmers in the Philippines live on a day to day payment where the life of a family can be destroyed when a disaster strikes and ruins the crops. Bamboo could be intercropped and supply farmers with a more stable and higher income on the long term. This project examines previous Beema bamboo plantations, the characteristics of Beema bamboo and explores future implementations. The main type of bamboo that is explored is Beema bamboo, a modified and improved version of Bambusa Balcooa. The Philippines have optimal growth conditions for Beema bamboo and could develop industries which can provide job opportunities. Since the research of Beema bamboo is still in early stages in the Philippines this goal is still years away. / Denna studie genomfördes som ett kandidatexamensarbete på Kungliga Tekniska Högskolan våren 2019. Studien utfördes som en fältstudie med finansiellt stöd från den svenska myndigheten SIDA (Swedish International Development Cooperation Agency). Detta projekt fokuserar på de potentiella ekonomiska- & ekologiska fördelarna med att odla bambu på små öar i Filippinerna. Få andra länder är lika sårbara för naturkatastrofer som Filippinerna. Majoriteten av jordbrukare i Filippinerna lever på en daglig inkomst, där en naturkatastrof kan förstöra familjer som lever på sitt jordbruk. Bambu kan bidra med en mer stabil och högre inkomst för bönder på lång sikt. Projektet undersöker tidigare Beema bamboo plantage, dess egenskaper och framtida implementeringar. Den huvudsakliga typen av bambu som utforskas i detta projekt är Beema bamboo, en modifierad och förbättrad version av Bambusa Balcooa. Filippinerna har optimala förhållanden för Beema bambu och kan utveckla industrier som kan skapa arbetsmöjligheter. Eftersom forskningen på Beema bamboo fortfarande är i tidiga stadier i Filippinerna är detta mål fortfarande många år bort.

This report discusses the design, development, and evaluation of a Chinese painting instructional project. The project discussed in this report introduces the novel idea of developing specific calligraphy skills in order to improve Chinese painting skills within a restricted time period (1-3 hours). The results show differences that are statistically significant between the pre and post test paintings created by 23 subjects from both the high school and the university level. The results of the evaluations can be found in the results section of this report. This report consists of a literature review, a project description, a description of the methodology used in the design project, evaluation results, and the full Chinese bamboo painting instructional material named Founding Chinese Bamboo Painting in Calligraphy: The Fourfold Approach (provided in Appendix A).

O foco desta pesquisa é o estudo da cadeia produtiva do bambu como material construtivo, investigando atores, atividades e processos. A arquitetura do futuro necessita de novos modelos e materiais construtivos para possibilitar o desenvolvimento sustentável do planeta. A atual demanda habitacional, no Brasil e no mundo, exige do setor da construção civil maior consumo de matériasprimas e, por conseguinte, implicando na elevação da emissão de CO2 e do consumo de energia. Novos materiais que demandam uma quantidade menor de energia em sua produção e uma menor geração de resíduos estão começando a ocupar posição de destaque na cadeia produtiva da construção civil. Neste contexto, o bambu no formato roliço, entre os materiais construtivos do futuro, por suas qualidades físico-mecânicas, além das ambientais, econômicas e sociais, poderia contribuir de maneira positiva. Arquitetos e construtores, no Brasil e em outras partes do mundo, tem de forma significativa ampliado os usos do bambu, aplicando-o em residências, pavilhões, e até em grandes estruturas. Porém, ainda existe um desconhecimento bastante generalizado sobre seu uso na construção civil. Esta lacuna é ainda maior quando se procura entender a sua cadeia produtiva. A compreensão dos atores, processos e da utilização dos materiais não convencionais, como o bambu, para a concepção projetual, é fundamental para o desenvolvimento do estudante e do profissional, seja ele engenheiro ou arquiteto. O trabalho de campo, juntamente ao referencial teórico estudado, permitiu a compreensão de que a cadeia produtiva do bambu como material construtivo além de não seguir o padrão estabelecido na literatura, principalmente com relação aos atores e processos envolvidos diretamente na transformação da matéria-prima, se apresenta de forma desorganizada e frágil, com a concentração de processos em poucos atores, resultando pouca eficiência e dificultando o seu desenvolvimento. / The focus of this research is the study of the bamboo productive chain as constructive material, investigating agents, activities and its processes. The architecture of the future needs new models and constructive materials to enable the sustainable development of the planet. The actual housing demand in Brazil and in the world, require from the civil construction sector a larger consumption of raw material and therefore producing a larger emission of CO2 and energy consumption. New materials that demand a smaller amount of energy and its production and a smaller residual generator are beginning to occupy a prominent position in the productive chain of the civil construction. In this context, the bamboo in natura shape is included in the construction materials of the future, because its physical-mechanical component, also environmental, economic and social component that could contribute in a positive manner. Architects and constructors, in Brazil and in other parts of the world, have considerably increased the use of bamboo; using it in residences, warehouses and even in large structures, although there is a widespread ignorance about its use in the civil construction. This gap is even larger when one seeks to understand its productive chain. The comprehension of its agents, processes and the use of non-conventional materials, such as bamboo, for a project conception is fundamental for the student and the professional development, whether an engineer or architect. The fieldwork, along with the theoretical referential studied, allowed the comprehension of the bamboo productive chain as a constructive material, besides to not follow the established standard in the literature, mainly with the relationship between agents and its processes involved directly in the transformation of the raw material, it presents in a unorganized and frail form, with a concentration of processes within few agents, resulting in little efficiency and hindering its development.

[pt] O atual modelo de desenvolvimento das cidades, juntamente com o consumo desenfreado dos recursos não renováveis, mostrou-se inviável do ponto de vista da sustentabilidade, fato este que tem gerado preocupação em diversos setores da sociedade. No cenário mundial, principalmente no setor da construção civil, vem crescendo a demanda pelo uso de novos materiais e técnicas que não sejam agressivos ao meio ambiente. O meio acadêmico, como ambiente de pesquisa é um dos locais para a geração desses novos materiais e técnicas que possam suprir as demandas visando o desenvolvimento sustentável. Nesse contexto, o LILD (Laboratório de Investigação em Living Design) vem estudando nos últimos 20 anos tecnologias limpas de baixo impacto ambiental, atendendo a demandas reais na construção de objetos de design e arquitetura. No momento o LILD trabalha, entre outras atividades, com materiais compósitos de terra crua e fibras naturais. Este trabalho apresenta o resultado do processo de desenvolvimento no LILD de um objeto feito com estes compósitos, denominado CÚPULA CATENÁRIA, com a aplicação da metodologia projetual utilizada no LILD. Os experimentos foram desenvolvidos a partir de modelos processuais que determinaram os parâmetros e apontaram as diretrizes a serem seguidas no projeto, visando sempre a aplicação e construção de um modelo em escala real, que por sua vez incorpora diversos saberes de diferentes áreas de conhecimento. / [en] The current model of cities development, considering the wild consumption of not renewable resources, has shown impracticable due the sustainability point of view. Fact which is really concerned a lot of preoccupation in many sectors of human society. In the world-wide scenery, mainly at civil construction sector, it is growing a big demand for the use of new and alternative materials and techniques that may not harm the world environment. Due this situation, in the academic field that is considered an excellent research environment, it is the right place to new materials and techniques born in order to supply the demands considering the sustainable development. In this context, the LILD (Research Living Design Laboratory) has been studying last 20 years the applications of clean and low environmental impact technologies, answering the demands of building the design and architecture of real objects. This work presents the result of the developing process of an object named CATENARY DOME, applying the project methodology of LILD. The experiments have been developed of processual models that determined the parameters and point directives to be followed in the project, having in mind always the application and construction of an object in real scale, that incorporate many different knowledge areas.

A proposta deste estudo é demonstrar a possibilidade de utilização do bambu, como material construtivo, na arquitetura contem porânea. Com intuito de referenciá-las, pauta-se em alguns exemplos, compreendidos entre 1995 e 2014, no Brasil e no exterior, abordando aspectos técnicos específicos inerentes à sua aplicação e traçando um panorama atual do seu emprego. O critério de seleção, das obras apresentadas, deu-se em função da relevância do papel estrutural desempenhado pelo bambu. A pesquisa concentrou-se, principalmente, na produção arquitetônica no Brasil, com enfoque às obras presentes, e visitadas, no Estado de São Paulo. Também foram abordadas obras, no Brasil, não visitadas, mas cujas contribuições são significativas em relação ao emprego do bambu. Os exemplos internacionais selecionados, referenciam a produção contemporânea, demonstrando as diferentes formas de aplicação deste material, intrínsecas às culturas e contextos aos quais estão inseridos, procurando traçar um panorama atual de seu uso e possíveis desdobramentos. Pretende-se, com este estudo, contribuir com a divulgação e disseminação das possibilidades de utilização do bambu, colaborando com a mudança de paradigma em relação ao seu emprego na arquitetura e, com isso, delinear a contribuição do bambu para a construção da arquitetura contemporânea. / The purpose of this study is to demonstrate the possibility of using bamboo as a building material, in contemporary architecture. Seeking to reference them, is guided in some instances, between 1995 and 2014, in Brazil and abroad, addressing specific technical aspects of its implementation and drawing a current overview of their employment. The selection criteria, of the buildings presented, took place in function of the relevance of the structural role of bamboo. The research focused mainly on the architectural production in Brazil, with a focus in buildings, that were visited the State of São Paulo. Were also dealt buildings in Brazil, not visited but whose contributions are significant in relations to the bamboo employmen t. The selected international examples, refer to contemporary production, demonstrating the different forms of application of this material, inherent in cultures and contexts to which they belong, looking out a current view of their use and possible developments. The intention of this study is contribute to the disclosure and dissemination of bamboo usage possibilities, collaborating with the paradigm shift in relation to its use in architecture and, therefore, outline the bamboo contribution to the building of contemporary architecture.

A viabilidade da produção, do manejo e da utilização dos colmos de bambu no Brasil, em relação às árvores de espécies florestais de eucaliptos e pinus, entre outras, foi a principal motivadora do presente trabalho. Com esse objetivo foram caracterizados os colmos de 3 espécies de bambu, consideradas prioritárias pelo INBAR, a saber Dendrocalamus asper, D. latiflorus e Guadua angustifolia da Coleção de Bambus da Área Experimental Agrícola do Departamento de Engenharia Mecânica, Campus da UNESP, Bauru, SP. Amostras dos colmos das 3 espécies, coletadas através de método não destrutivo, foram caracterizadas em relação à estrutura anatômica macro e microscópica. Por meio da técnica de densitometria de raios X , a densidade aparente ao longo da espessura dos colmos foi determinada, e os perfis de densidade radial foram plotados em gráficos. Os resultados das análises laboratoriais evidenciaram que (i) as 3 espécies apresentam uma estrutura anatômica macro e microscópica que permite a sua identificação taxonômica e caracterização tecnológica, em relação aos tecidos de parênquima, feixes vasculares e bainha de fibras; (ii) a variação da estrutura anatômica e da densidade aparente ao longo da espessura dos colmos, relacionadas com a porcentagem e dimensões dos 3 elementos anatômicos, possibilita a sua caracterização em 3 camadas, sendo que as camadas interna e intermediária mostraram maiores diferenças em relação à externa; (iii) o modelo de variação das dimensões das fibras e da densidade aparente indicou um aumento dos dois parâmetros no sentido da camada interna para a externa dos colmos; (iv) não foi observado, para nenhuma das 3 espécies, um padrão de distinção entre a dimensão de fibras de colmos mais jovens e adultos; (v) os tipos dos feixes vasculares dos colmos das 3 espécies de bambu corresponderam aos descritos na literatura e, ainda, (vi) não foram encontradas referências da aplicação da densitometria de raios X na caracterização dos perfis de densidade aparente dos colmos de bambu e sua relação com a sua estrutura anatômica. O presente trabalho discute a aplicação dos seus resultados em relação a (i) influência das variações climáticas do ano de formação na espessura e anatomia dos colmos e (ii) aplicação tecnológica dos colmos pela análise dos perfis de densidade aparente e composição anatômica. / The feasibility of the production, management and utilization of bamboo culms in Brazil, in relation to forest species like eucalyptus, and pine trees , was the main motivator of the present work. Considering this purpose, culms of 3 bamboo species, considered priorities by INBAR, were characterized; namely Dendrocalamus asper, D. latiflorus Guadua angustifolia, all from the \"Collection of Bamboos\" owned by the Agricultural Experimental Area of the Department of Mechanical Engineering, from UNESP, Bauru Campus, SP. Samples from the 3 species stems, acquired through a non-destructive method, were characterized as for macroscopic and microscopic anatomical structure. Through the technique of X-ray densitometry, the apparent density along the stems\' thickness was determined, and the radial density profiles were plotted on. The laboratory tests results showed that (i) 3 species have macro and microscopic anatomical structures that allows its taxonomic identification and technological characterization, regarding parenchyma tissues, vascular bundles and fibers sheath; (ii) the variation of the anatomical structure and apparent density across the culm\'s cross plane, related with percentage and dimensions of the 3 anatomical elements, enables its characterization in three layers, of which the inner and intermediate layers showed major differences relative to the external one; (iii) the variation model of fiber dimensions and apparent density indicated an inner-outer layer oriented increase of these parameters; (iv) Was not observed, for any of the 3 species, a pattern of distinction between the culms fibers size regarding younger, or older individuals; (v) the bamboo vascular bundles types of the 3 species corresponded to those described in the literature and, moreover, (vi) there were no references found on the application of X-ray densitometry in the characterization of bamboo stems apparent density profiles and its relation to its anatomical structure. This study discusses the application of it\'s results in relation to (i) the growth year climatic variations influence on the thickness and anatomy of culms and (ii) the technological application of the stems by means of the apparent density and anatomical composition analysis.

Cheung Lok Ying Teresa = 竹炭模板上形成的二氧化硅與碳化硅納米線及其表徵 / 張樂影. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references. / Text in English; abstracts in English and Chinese. / Cheung Lok Ying Teresa = Zhu tan mo ban shang xing cheng de er yang hua gui yu tan hua gui na mi xian ji qi biao zheng / Zhang Leying. / ABSTRACT --- p.i / 摘要 --- p.iii / ACKNOWLEDGEMENTS --- p.v / TABLE OF CONTENTS --- p.vii / LIST OF FIGURE CAPTIONS --- p.xi / LIST OF TABLE CAPTIONS --- p.xv / Chapter Chapter 1 --- Introduction / Chapter 1.1. --- Biomineralization process --- p.1 / Chapter 1.2. --- Structures in biological matters --- p.2 / Chapter 1.2.1. --- Bone --- p.2 / Chapter 1.2.2. --- Wood --- p.3 / Chapter 1.3. --- Biomorphic products and their potential applications --- p.4 / Chapter 1.3.1 --- Environment conscious products --- p.4 / Chapter 1.3.2 --- Properties --- p.5 / Chapter 1.3.3 --- Carbide and oxide composites --- p.5 / Chapter 1.4 --- Common fabrication approaches --- p.6 / Chapter 1.4.1 --- Gaseous infiltration --- p.7 / Chapter 1.4.2 --- Liquid infiltration --- p.7 / Chapter 1.4.3 --- Sol-gel method --- p.8 / Chapter 1.5 --- Growth of nanowires --- p.8 / Chapter 1.5.1 --- Vapor-liquid-solid (VLS) mechanism --- p.9 / Chapter 1.5.2 --- Solution-liquid-solid (SLS) mechanism --- p.9 / Chapter 1.5.3 --- Vapor-solid (VS) mechanism --- p.10 / Chapter 1.6 --- Goals of the project --- p.10 / Chapter 1.6.1 --- Feedbacks on previous works --- p.10 / Chapter 1.6.2 --- Our breakthrough approach --- p.11 / Chapter 1.7 --- Thesis layout --- p.12 / References --- p.13 / Figures --- p.17 / Chapter Chapter 2 --- Samples preparation and characterization methods / Chapter 2.1 --- Materials selections --- p.22 / Chapter 2.1.1 --- Selection of materials for biomorphic substrate --- p.22 / Chapter 2.1.2 --- Selection of solution for infiltration --- p.23 / Chapter 2.2 --- Samples preparation --- p.24 / Chapter 2.2.1 --- Pyrolysis of raw bamboo --- p.24 / Chapter 2.2.2 --- Infiltration of reactants --- p.25 / Chapter 2.2.3 --- Sintering conditions --- p.26 / Chapter 2.3 --- Characterization methods --- p.26 / Chapter 2.3.1 --- Scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDS) --- p.27 / Chapter 2.3.2 --- Transmission electron microscopy (TEM) and EDS --- p.27 / Chapter 2.3.3 --- High-resolution transmission electron microscopy (HRTEM) --- p.27 / Chapter 2.3.4 --- X-ray diffraction (XRD) --- p.28 / Chapter 2.3.5 --- X-ray photoelectron spectroscopy (XPS) --- p.28 / Chapter 2.3.6 --- Fourier transform infrared spectroscopy (FTIR) --- p.29 / Chapter 2.4 --- Conclusions --- p.29 / References --- p.30 / Figures --- p.31 / Tables --- p.33 / Chapter Chapter 3 --- Bamboo biomorphic substrates / Chapter 3.1 --- Overview --- p.34 / Chapter 3.2 --- Volumetric shrinkage and weight loss --- p.34 / Chapter 3.3 --- General morphology --- p.35 / Chapter 3.4 --- Intrinsic impurities --- p.35 / Chapter 3.5 --- Structures --- p.36 / References --- p.38 / Figures --- p.39 / Chapter Chapter 4 --- Silica / Chapter 4.1 --- Overview --- p.43 / Chapter 4.2 --- Thermal analyses --- p.44 / Chapter 4.2.1 --- Raw biomorphic substrates --- p.44 / Chapter 4.2.2 --- Infiltrated biomorphic substrates --- p.45 / Chapter 4.3 --- Experiments --- p.46 / Chapter 4.4 --- Characterization in general --- p.47 / Chapter 4.4.1 --- General morphologies --- p.47 / Chapter 4.4.2 --- Tips of the SiO2 nanowires --- p.48 / Chapter 4.5 --- Effects of sintering duration --- p.48 / Chapter 4.6 --- Effects of sintering temperature --- p.49 / Chapter 4.6.1 --- "Different temperatures, held for one hour" --- p.50 / Chapter 4.6.2 --- "Different temperatures, held for ten hours" --- p.50 / Chapter 4.7 --- Growth mechanisms --- p.52 / Chapter 4.8 --- Summary --- p.54 / References --- p.56 / Figures --- p.58 / Tables --- p.75 / Chapter Chapter 5 --- Silicon carbide / Chapter 5.1 --- Overview --- p.76 / Chapter 5.2 --- Experiments --- p.77 / Chapter 5.3 --- Characterization in general --- p.78 / Chapter 5.3.1 --- General morphologies --- p.78 / Chapter 5.3.2 --- Stacking faults and twinning --- p.79 / Chapter 5.3.3 --- Tips of the SiC nanowires --- p.81 / Chapter 5.4 --- Growth mechanisms --- p.82 / Chapter 5.5 --- Summary --- p.83 / References --- p.84 / Figures --- p.87 / Chapter Chatper 6 --- Conclusions and future works / Chapter 6.1 --- Main results of this projects --- p.101 / Chapter 6.2 --- Future works --- p.103 / References --- p.104

Orientador: Marco Antonio dos Reis Pereira / Banca: Luis Carlos Paschoarelli / Banca: Cesar Foschinni / Resumo: Os elevados investimentos em tecnologia e materiais de alto desempenho no mercado de produtos assistivos vêm resultando em equipamentos de alta sofisticação, porém de custo elevado, o que inviabiliza sua aquisição pela população de baixa renda. No Brasil, apesar de o Sistema Público de Saúde (SUS) possibilitar a obtenção gratuita dessas próteses, o serviço é caracterizado por falhas e longos períodos de espera. Dessa maneira, buscando atender essa demanda existente no Brasil por próteses de preço acessível para população de baixa renda, este presente estudo propõe o desenvolvimento de um produto alternativo aos convencionais através do desenvolvimento e a avaliação experimental de um protótipo de prótese transtibial fabricado com materiais sustentáveis de baixo custo. Por serem provenientes de fonte renovável, o emprego destes biocompósitos resultantes da junção de bambu e resina poliuretana à base de óleo de mamona, contribuiu para a redução do impacto ambiental e também para a redução do preço final do produto. Para as etapas de Projeto do Produto, foram adotadas metodologias específicas do design de produtos centrado no usuário, bem como metodologias para processamento de materiais e avaliação de protótipos. A adoção dessas metodologias e o emprego de softwares CAD e CAE durante toda a fase de projeto contribuiu para um desenvolvimento eficiente das etapas, auxiliando na prevenção de falhas e redução no tempo de produção. A qualidade dos compósitos e dos produtos resultant... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The high investments in technology and high-performance materials in the assistive products market have resulted in highly sophisticated equipment, but also with a high cost, which makes it unfeasible for the low income population. In Brazil, although the Public Health System (SUS) makes it possible to obtain these prostheses free of charge, the service is characterized by failures and long waiting periods. Therefore, the present study proposes the design of an alternative product to the conventional ones through the development and the experimental evaluation of a prototype of transtibial prosthesis manufactured with low cost sustainable materials. The use of these biocomposites, resulted from the joining of bamboo and polyurethane resin based on castor oil, contributed to the reduction of the environmental impact and also to the reduction of the final product price. For the Product Design stages, specific user-centered product design methodologies were adopted, as well as methodologies for processing materials and evaluating prototypes. The adoption of these methodologies and the use of CAD and CAE software throughout the design phase contributed to an efficient development of the steps, helping to prevent failures and reduce production time. The quality of the composites and the products resulting from the proposed methodology can be noticed in the results of the mechanical tests that, even preliminary, confirmed the feasibility of applying the natural composites in the ma... (Complete abstract click electronic access below) / Mestre