The effects of defects and building directions in additive manufactured AlSi10Mg on its high-cycle fatigue and very-high-cycle fatigue performance are studied based on crystal plasticity finite element (CPFE). Among the three models provided in this work, the results of model 2 (N_p2) are in good agreement with the experimental ones. It is found the fatigue life of the sample with defects are much lower than that without defects. 0° specimens have a better fatigue performance than 90° ones. This work is beneficial in determining the fatigue lifetime and helps to improve the fatigue behavior of AlSi10Mg.

中文翻译：

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通过晶体塑性有限元方法预测增材制造的 AlSi10Mg 的高周和甚高周疲劳寿命

基于晶体塑性有限元（CPFE）研究了增材制造AlSi10Mg中缺陷和构建方向对其高周疲劳和甚高周疲劳性能的影响。在本工作提供的三个模型中，模型 2 ( N _p2 )的结果与实验结果非常吻合。发现有缺陷试样的疲劳寿命远低于无缺陷试样。0°试样比90°试样具有更好的疲劳性能。这项工作有利于确定疲劳寿命并有助于改善 AlSi10Mg 的疲劳行为。