The multiple fields created by two perfectly-conducting punches on piezoelectric/piezomagnetic materials with anisotropy
The multiple fields created by two perfectly-conducting punches on piezoelectric/piezomagnetic materials with anisotropy
复制标题
两个完美导电的冲头在具有各向异性的压电/压磁材料上产生的多个场
DOI：
10.1002/zamm.201600097
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Li J
中科院分区：
文献类型：
--
作者：
Zhou YT;Lee KY;Jang YH;Li J
本文提出了两个理想导电冲头作用于各向异性压电/压磁材料的分析模型。对于六种不同或重复的根，得到了相应的辅助函数。推导了两个导电和导磁平板冲头的简化积分方程组的闭合形式解。根据两个冲头之间的距离和每个冲头的宽度，明确地给出了每个冲头两边的应力、电位移和磁感应强度因子。通过数值试验，验证了平板冲头间距和各种材料性能对接触行为的影响。结果表明，与内缘相比，外缘表面接触应力、表面电位移和表面磁感应强度的奇异性更强。
This article proposes an analytical model of two perfectly conducting punches acting on piezoelectric/piezomagnetic materials with anisotropy. For six types of distinct or repeated roots, related auxiliary function are obtained. The closed‐form solutions of the reduced integral equations are derived for two electrically‐conducting and magnetically‐conducting flat punches. The stress, electric displacement and magnetic induction intensity factors at both edges of each punch are given explicitly in terms of the distance between the two punches and the width of each punch. Numerical test is done to demonstrate the contributions of the distances between the two flat punches and various material properties on the contact behaviors. The obtained results delineate that at the outer edges, there has stronger strength for the singularities of the surface contact stress, surface electric displacement and surface magnetic induction compared with that at the inner edges.