The macroscopic damage image of reinforced concrete slabs under impact effect are obtained through model test, and the residual velocity of the projectile are gained from the tests.

通过弹丸撞击有限厚度钢筋混凝土靶板的模型试验，获得了有关靶板冲击破坏的宏观图象及弹丸贯穿靶板后的残余速度。

youdao

Microscopic damage often USES an average method to describe the study results of microscopic structural damage mechanism in macroscopic mechanics of material.

细观损伤力学常采用一种平均化的方法，把细观结构损伤机制研究的结果反映到材料的宏观力学行为的描述中去。

youdao