Undoubtedly, a better understanding and the further development of approaches for damage tolerant component design of AM parts are among the most significant challenges currently facing the use of these new technologies.

This article presents a thorough overview of the discussion at an international workshop on the topic. It aims to provide a review of the parameters affecting the damage tolerance of parts produced by additive manufacturing (shortly, AM parts) with special emphasis on the process parameters intrinsic to the AM technologies, the resulting defects and the residual stresses. Based on these aspects, basic concepts are reviewed and critically discussed specifically for AM materials:

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Criteria for damage tolerant component design;

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Criteria for the determination of fatigue and fracture properties;

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Strategies for the determination of the fatigue life in dependence of different manufacturing conditions;

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Methods for the quantitative characterization of microstructure and defects;

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Methods for the determination of residual stresses;

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Effect of the defects and the residual stresses on the fatigue life and behaviour.

毫无疑问，更好地理解和进一步开发增材制造零件的耐损伤组件设计方法是目前使用这些新技术面临的最重大挑战之一。

本文全面概述了国际研讨会上有关该主题的讨论。它旨在回顾影响增材制造零件（简称增材制造零件）损伤容限的参数，特别强调增材制造技术固有的工艺参数、由此产生的缺陷和残余应力。基于这些方面，专门针对增材制造材料的基本概念进行了回顾和批判性讨论：

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容损部件设计标准；

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疲劳和断裂性能的测定标准；

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根据不同制造条件确定疲劳寿命的策略；

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微观结构和缺陷的定量表征方法；

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残余应力的测定方法；

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缺陷和残余应力对疲劳寿命和行为的影响。