Magnetoelectric particle and laminate composites are investigated numerically, applying the finite element method in connection with microphysically or phenomenologically motivated constitutive models for ferroelectrics and soft as well as hard ferromagnetics. A micromechanical damage model is further introduced, accounting for micro-crack growth in the ferroelectric constituents, where the cracks are assumed to be electrically impermeable and magnetically permeable. The mutual coupling of electro- and magnetomechanics, related crack driving forces and softening of the material in return are investigated by numerical simulation, providing insight into influencing factors, in particular damage, of the magnetoelectric coupling coefficients.

中文翻译：

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多铁复合材料的数值模拟：磁电耦合和损伤的预测

磁电粒子和叠层复合材料的数值研究，是应用有限元方法结合铁电体，软铁和硬铁磁的微观或现象学本构模型。进一步介绍了一种微机械损伤模型，该模型考虑了铁电成分中的微裂纹增长，其中假定裂纹是电不渗透的和磁导的。通过数值模拟研究了电磁力的相互耦合，相关的裂纹驱动力和材料的软化，从而提供了对磁电耦合系数的影响因素（尤其是损坏）的洞察力。