No description available.

No description available.

Uppsatsen handlar om produktdesigners roll i en global kamp för att minska plastkonsumtion, samt vilka utmaningar och möjligheter produktdesigners har för att kunna verka för en reducerad plastkonsumtion.Studien undersöker hur en produktdesigners arbetsroll ser ut idag och om det skett en förändring av hur produktdesigners relation till plast och synsättet kring hållbar utveckling under det senaste fem åren.Uppsatsen teoretiska ramverk syftar på att skapa en grundläggande sammanställning av hur materialet plast används idag, hur det har sett ut förr samt vad det finns för för- och nackdelar med materialet plast, detta för att få en bättre förståelse kring materialet. I teorin avhandlads även hållbar utveckling samt designarbete.Studiens teoridel kompletteras med intervjuer utav kvalitativ form som är till att undersöka produktdesignerns roll kring arbetet med plast, samt utmaningar och möjligheter. Intervjun är baserad på tre verksamma industridesigners upplevelser utav ämnet.Uppsatsens slutsats visar på att produktdesigners är medvetna om att plast är ett miljöskadligt material om det inte hanteras på rätt sätt, trots detta ingår plast i nästintill alla produkter som en produktdesigner utvecklar. Det finns en vilja hos produktdesigners att skapa produkter för minskad plastkonsumtion, dock är det svårt att påverka materialval då det är kunden som bestämmer.Arbetet med plast hos en produktdesigner har inte förändrats något märkbart det senaste fem åren, även om det i vissa fall efterfrågas miljövänligare alternativ från kund. / The study investigates the role of product designers in the global fight to reduce the plastic consumption, and what challenges and opportunities a product designer have to being able to act for a reduced plastic consumption.The study examines today’s role of product designers today and whether there has been a change in product designers' relationship with plastic and how they have approached sustainable development over the past five years.The theoretical framework aims to create a basic knowledge of how plastics are used today, how it has been used in the past and the pros and cons of plastics, this to get a better understanding of the material. The theoretical framework also investigates design and sustainable development.The theory is expanded with qualitative interviews which further investigates product designers’ role in the work with plastics, as well as challenges and opportunities. The interview is based on three industrial designers' experience of the subject.The conclusion of the thesis is that product designers are aware that the products they develop in plastic sooner or later will be part of the tons of plastic waste that are created each year and have a negative impact on the environment. Nevertheless, plastic is included in almost every product that product designers develop Since product designers do not have the power to influence the producer to change materials, the work for a reduced plastic consumption is difficult.

A Description and Analysis of Sculptures completed during the last year of the MFA Program, and presented in public showing April 1-23, 1976.

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No description available.

No / This paper presents a framework for life prediction modelling and illustrates it with a case study of a plastic automotive component subjected to competing failure mechanisms: wear, leading to a soft failure-degradation of functional performance, and fatigue, leading to loss of function through fracture of a main sub-component. The paper focuses on developing a life prediction model for the fatigue failure mechanism. Structural and kinematic analysis of the component was conducted to identify a suitable substitute load characteristic for the failure mechanism. The aim is to develop an approximate model using limited testing data and when a baseline stress-life model is not available. The issues highlighted by the case study are generic to development of life models for non-critical automotive components, thus providing potentially wide scope for practical application of the approach.

The strength and behavior of gusset plates in buckling is evaluated herein based on data from the experimental investigations conducted by other researchers and the analytical work presented herein. A set of design guidelines has been recommended through the review of the current practice. Representative single and double brace gusset plates normally adopted for connections with compressive bracing/diagonal members in braced frames and trusses, were modeled and analyzed using linear and nonlinear finite element methods to determine the buckling loads. The buckling analysis data along with the test data indicated the occurrence of inelastic buckling of the gusset plates. Current design practice and a set of formulas for determination of gusset plate thickness have been reviewed. A set of guidelines has been recommended for the design and evaluating gusset plate buckling loads.

Plastic  deformation of tubes can be achieved in numerous ways. One of the most useful type is CNC tube bending machines which is used in many industries such as aerospace, automotive, HVAC systems and so on. It is important that all components of system should mate properly after producing and because of this bend shaping requires sensitive operation on each components to ensure regularity of production processes with high quality end-product. Thus, the CNC tube bending industry to become widespread. However it brings some troubleshooting like wrinkling, springback, breakage and ovalisation. This failures depends on geometry of the material such as bending radius, tube thickness and also friction factor between dies and the tube. Effects of all parameters should be examined before generating the theory for a best solution. Therefore, prediction of the required moment for the proper bending process with low cost and shortened production time is needed. All of these requirements can be achieved through a C++ form application program.

Thesis (M.S.)--Oregon State University, 2008. / Printout. Includes bibliographical references (leaves 114-120). Also available on the World Wide Web.