The advent of additive manufacturing (AM) processes applied to the fabrication of structural components has created the need for design methodologies and structural optimization approaches that take into account the specific characteristics of the fabrication process. While AM processes give unprecedented geometrical design freedom, which can result in significant reductions in the components’ weight (e.g., through part count reduction), on the other hand, they have implications for the fatigue and fracture strength, because of residual stresses and microstructural features. This is due to stress concentration effects, anisotropy, distortions and defects whose effects still need investigation. This Special Issue aims at gathering together research investigating the different features of AM processes with relevance for their structural behavior, particularly, but not exclusively, from the viewpoints of fatigue, fracture and crash behavior. Although the focus of this Special Issue is on AM, articles dealing with other manufacturing processes with related analogies can also be included, in order to establish differences and possible similarities.

中文翻译：

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工业增材制造

应用于结构部件制造的增材制造（AM）工艺的出现，引起了对设计方法和结构优化方法的需求，这些设计方法和结构优化方法考虑了制造工艺的特定特征。虽然增材制造工艺可提供空前的几何设计自由度，这可以显着降低零部件的重量（例如，通过减少零件数量），但另一方面，由于残余应力和微结构，它们对疲劳和断裂强度有影响特征。这是由于应力集中效应，各向异性，变形和缺陷所致，这些效应仍需研究。本期专刊旨在将研究AM过程与其结构行为相关的不同特征的研究汇总在一起，特别是但不是唯一地，从疲劳，断裂和碰撞行为的角度来看。尽管本期特刊的重点是增材制造，但也可以包括与其他制造过程类似的文章，以建立差异和可能的相似性。