证明了泛函j的一次变分为零相当于满足刚塑性体动力学的全部方程。
It is proved that the vanishing of the first variation of the functional J is equivalent to all the equations which should be satisfied in the dynamics of rigid-plastic continua.
证明了泛函j的一次变分为零相当于满足刚塑性体动力学的全部方程。
It is proved that the vanishing of the first variation of the functional J is equivalent to all the equations which should be satisfied in the dynamics of rigid-plastic continua.
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