The directional instability problem in systems with frictional contacts
The directional instability problem in systems with frictional contacts
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DOI：
10.1016/j.cma.2003.09.013
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发表时间：
2004-01
影响因子：
7.2
通讯作者：
A. Costa;J. Martins;I. Figueiredo;J. Júdice
中科院分区：
文献类型：
--
作者：
A. Costa;J. Martins;I. Figueiredo;J. Júdice
本文总结的研究涉及具有单向摩擦接触的有限维系统的方向不稳定性。这种发散型不稳定的发生条件进行了讨论，互补配方的开发，并提出了相应的非光滑稳定特征值问题的解决方案的数值程序。各种例子进行了分析或数值求解和讨论，即一些有限元的例子，有不稳定的模式，涉及在接触面的不同部分滑或粘演变。
The research summarized in this paper addresses the directional instability of finite dimensional systems with unilateral frictional contacts. Conditions for the occurrence of this divergence type instability are discussed, complementarity formulations are developed, and numerical procedures are proposed for the solution of the corresponding non-smooth stability eigenproblems. Various examples are analytically or numerically solved and discussed, namely some finite element examples that have instability modes involving evolution towards slip or stick in different portions of the contact surface.