Abstract : Finite Element Method (FEM) was used to simulate the creep indentation testing on film/substrate systems. Based on the FEM simulation, a new method is proposed to derive the material creep properties (in Norton equation) from the indention creep experimental results (indentation stress-indenter depth-time) for thin film/substrate systems by the definition of `effective' stress and `effective' strain. In the simulation, a steady state was found and the steady state was used to construct the relationship between the traditional uniaxial tensile creep testing and indentation testing.
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Anti-stress and Relaxation 减压舒缓浴
Stress and Relaxation 压力与松弛 ; 压力与放松 ; 应力与松弛
stress and strain 应力与应变 ; 应力和应变
Stress and Endocrine Physiology 应激和内分泌生理学 ; 应激和内分泌
stress and strain response 应力及应变反应
welding stress and distortion 焊接应力和变形 ; 综合句库
xidative Stress and Aging 氧化应激和衰老
Stress and anxiety 压力和焦虑
We worked on pronunciation, stress and intonation.
我们学习了语音、重读和语调。
Stress and lack of sleep can aggravate the situation.
紧张和缺少睡眠会使情况恶化。
These exercises aim to counteract the effects of stress and tension.
这些训练旨在抵消压力与紧张的影响。
Getting plenty of sleep, reducing stress and eating a diet high in vitamins and minerals can also help.
VOA: special.2010.05.19
Is it academic stress, social stress and the like, that depend--that determines in part how people respond with their eating.
是学业压力,社会压力还是别的压力,压力类型多少决定了,人们对于食物的态度
the pervading emotion is, I'd say, just stress and hurriedness.
这里的人们最普遍的感受还是压力以及慌忙感。
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