切线摩擦力
The normal contact force, normal displacement constraint, and tangent friction force are applied through penalty method. With the realization of contact treatment for complex problems, EFG codes for complicated metal forming process are developed, and their qualities are examined through several examples.
接触点处的法向接触力、法向位移约束及切向摩擦力采用了罚函数法进行施加,进而实现了对复杂问题的接触处理。
The modified penalty function method and coulomb friction law is used for evaluating normal contact force and tangent friction force respectively. In addition, the transformation of the contact force from contact point to nodes of contact elements is accomplished according to their shape.
用修正的罚函数法和库仑摩擦定律分别对接触点的法向接触力和切向摩擦力进行计算,并根据接触单元的形状实现了接触力从被接触点到接触单元节点的转化。
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