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Additive Manufacturing: Design (Topology Optimization), Materials, and Processes

  • George LampeasEmail author
Chapter
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Abstract

Additive Manufacturing is defined as the process of joining materials to make objects from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing methods. The adoption of AM techniques can offer the ability to design and produce complex and demanding components that have optimal material topology and therefore optimal behavior in terms of functionality, load transfer, strength, and mechanical behavior. In this chapter an introduction to structural optimization is provided and different types of structural optimization techniques are presented, focusing on topology optimization. The basic concepts and techniques used for the topological optimization of structural components are presented and applied in two characteristic aeronautical structural parts of different scale, namely a bracket connection and a commercial aircraft fuselage airframe section. Subsequently, various types of AM manufacturing processes are described, suitable for production of topology optimized aerospace parts; special emphasis is placed in powder bed fusion techniques, which are more commonly applied for the production of aeronautical parts and components. The chapter is completed with an overview of the main active research subjects in the scientific field of additive manufacturing, especially relative to the aerospace sector.

Keywords

Additive manufacturing Topology optimization Solid isotropic material with penalization method Evolutionary structural optimization method Bidirectional evolutionary structural optimization method Additive manufacturing processes Aerospace AM parts 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Laboratory of Technology and Strength of Materials, Department of Mechanical Engineering and AeronauticsUniversity of PatrasPatrasGreece

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