Abstract This study demonstrates the applicability of peridynamic unit cell (PD-UC) for predicting effective thermoelastic material properties of complex microstructures, and reduction in moduli due to the presence of defects. The comparisons for six different microstructures (i.e. Hexagonal pack, three-phase interphase, 0/90, spherical inclusions, woven-fiber, and random short-fiber) show remarkable agreement with the results from established models in the absence of defects. Unlike the existing models, the PD-UC is also capable of predicting the reduction in the presence of complex heterogeneity and defects. There exists no limitation on the number of constituent materials, and defects are introduced by simply breaking the PD bonds. Also, it permits orthotropic constituent materials. The PD-UC automatically permits the periodic boundary conditions without any constraint conditions.

中文翻译：

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具有和不具有缺陷的复杂微结构的有效特性的近场动力学晶胞

摘要 本研究证明了近场动力学晶胞 (PD-UC) 在预测复杂微结构的有效热弹性材料特性以及由于存在缺陷而导致的模量减少方面的适用性。六种不同微观结构（即六边形堆积、三相界面、0/90、球形夹杂物、编织纤维和随机短纤维）的比较表明，在没有缺陷的情况下，与已建立模型的结果非常一致。与现有模型不同，PD-UC 还能够预测存在复杂异质性和缺陷时的减少。对组成材料的数量没有限制，并且通过简单地破坏PD键来引入缺陷。此外，它允许各向异性组成材料。