颗粒间接触用广义弹簧单元表示，相邻颗粒接触点的塑性变形用非线性弹簧表示。

Each particle was located by a node at its centre and the plastic indentation of the contacts between neighboring particles was represented by a non-linear spring.

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颗粒间接触用广义弹簧单元表示，相邻颗粒接触点的塑性变形用非线性弹簧表示。

Each particle was located by a node at its centre and the plastic indentation of the contacts between neighboring particles was represented by a non-linear spring.

youdao