纯弹性断裂总是极少的，因之在加载应力作用下，裂纹顶端总是存在着或大或小的塑性区，存在着裂纹与位错的交互作用。
Pure elastic fracture is always rare, so th at under the action of stress, a plastic zone(large or small), and interactions between crack and dislocations always exist at the crack tip.
裂纹群的交互作用会引起裂纹应力强度因子的干扰效应。
Multiiiple crack interaction may cause distrubed effect of stress intensity factor.
用慢应变速率拉伸(SSRT)技术研究了7075铝合金在应力腐蚀过程中的力学与电化学交互作用。
The interaction between mechanics and electrochemistry during the stress corrosion cracking (SCC) of 7075 aluminum alloy was studied using slow strain rate tension (SSRT) technique.
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