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首页> 外文会议>Sixth International Conference on Computational Methods in Contact Mechanics, Mar, 2003, Crete >Numerical modeling: the contact problem of movable elasto/visco-plastic body
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Numerical modeling: the contact problem of movable elasto/visco-plastic body

机译：数值模拟：可动弹/粘塑性体的接触问题

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摘要

This paper presents the modelling of a contact problem in the operation of technological production of objects. An incremental model of the contact problem for movable elasto/visco-plastic body for spatial states (3D) is being considered. Geometrical contact conditions (GCC) for the case of a deformed object and a rigid or elastic tool, with a rotation and translation of the bodies are introduced. A GCC form used in numeric calculations is determined. Dependences between increments of unit forces in the contact area of bodies is introduced. Basic incremental equations of the edge displacement in the reversible and nonreversible zone are defined. The description of a geometrical contact conditions and friction conditions in the ranges of stick-slip are considered. The models obtained are used to a variational formulation of a contact problem with the application of a method of finite elements and to a numerical analysis of the contact problem.
机译：本文介绍了对象技术生产操作中的接触问题建模。正在考虑针对空间状态（3D）的活动弹性/粘塑性体接触问题的增量模型。引入了变形物体和刚性或弹性工具的几何接触条件（GCC），并带有旋转和平移的物体。确定了用于数值计算的GCC格式。介绍了在身体接触区域中单位力增量之间的依赖关系。定义了可逆和不可逆区域中边缘位移的基本增量方程。考虑了在粘滑范围内的几何接触条件和摩擦条件的描述。所获得的模型用于通过有限元方法对接触问题进行变分表述以及对接触问题进行数值分析。

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