To determine the reason of impact breakage of new developed plastic packing box for certain cannonball in drop test, this article derives the actual stress formulas in the position of impact breakage.
为确定新研制的某炮弹塑料包装筒在跌落试验中，产生冲击破坏的原因，通过理论计算和试验研究。
To determine the reason of impact breakage of new developed plastic packing box for certain cannonball in drop test, this article derives the actual stress formulas in the position of impact breakage.
为确定新研制的某炮弹塑料包装筒在跌落试验中，产生冲击破坏的原因，通过理论计算和试验研究。
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