结构的本构关系可以考虑强度的强化作用和变形超过极限状态后的强度下降，而把理想弹塑性假定做为一种特殊情况来处理。
The method may be applied to structures composed of strength hardening and strength softening with the ideal elastoplastic state as their special case.
基于对理想弹塑性薄板的分析，得到了双层板结构的撞击极限方程。
The paper presents a new analytical ballistic limit equation for sphere projectiles normal impacting on thin plates.
基于对理想弹塑性薄板的分析，得到了双层板结构的撞击极限方程。
The paper presents a new analytical ballistic limit equation for sphere projectiles normal impacting on thin plates.
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