dynamic cracking resistance 动态抗开裂性
The strata dynamic cracking characteristics of E1142 haulageway in fractured roof were investigated by optical peephole device.
利用钻孔光学窥视装置及系统，探测了E1142轨道平巷顶板岩层动态破裂特征，统计分析了裂隙分布规律。
The larger pores in the interior of specimens may be saturated and lead to cracking, which result in the decrease of relative dynamic elasticity modulus.
内部大孔也可能饱和而引起内部开裂，导致相对动弹性模量下降。
The dynamic stress-strain and welding residual stress during welding are the significant factors which lead to welded cracking and debasement of the joint properties.
在焊接过程中产生的动态应力应变及随后形成的残余应力，是导致焊接裂纹和接头性能下降的重要因素。
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