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Abstract
Design engineers can choose from a large variety of materials in order to fulfill a certain function. In those fields of application with a lower level of complexity, it is often sufficient to manufacture the entire component in a “monolithic” manner from one single material. Concurrent, partly contradictory and, most probably, local requirements that must be fulfilled by a component often make material selection more difficult. As a consequence, it is often necessary to use several different materials with a local and functional orientation, which is a part of the multi-material design strategy. The potential of different materials can be used most effectively if this information is made available to the design engineers as early on in the design process as possible. The aim of the SFB 675 sub-project C7, therefore, is the development of a systematic design approach (Finite Element Design, FED) that focuses on finite component elements. As a result, the potential of the optimization of local properties is taken into consideration, and the interaction between the materials, production processes, and design can all be described.
Highlights
Since, at present, the material is not considered until a relatively late stage during the systematic design process in accordance with VDI 2221, it is often impossible to fully benefit from the potential of the materials
The aim of the SFB 675 sub-project C7, is the development of a systematic design approach (Finite Element Design, finite element design (FED)) that focuses on finite component elements
Approaches that simultaneously consider the design, local material properties, and production processes in one systematic design concept are not described in the literature
Summary
At present, the material is not considered until a relatively late stage during the systematic design process in accordance with VDI 2221, it is often impossible to fully benefit from the potential of the materials. The use and combination of existing material databases for informational purposes and the determination of suitable steels based on predefined material requirements (e.g. hardness values or manufacturing processes) in accordance with [13] is an improvement, . As far as higher information systems are concerned, the CES Selector by Granta Design, for example, is the current state of the art In this case, too, the materials are selected in a computer-assisted manner based on explicit value ranges and/or with the aid of two graphical methods of elimination in several steps, which is an implementation of the methods described by Ashby [11]. If one uses the ESPI deformation measurement in conjunction with the finite element method, it is possible to determine the general and residual stress conditions on component surfaces, which are caused by elastic-plastic stress. If one uses the ESPI deformation measurement in conjunction with the finite element method, it is possible to determine the general and residual stress conditions on component surfaces, which are caused by elastic-plastic stress. [33]
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