以后,罗博坦诺夫(Robotnov)〔2〕引入了a损伤变量(Damage variable)的概念。70年代末,莱梅特利(Lemaitr
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...剂;损伤变量 [gap=764]ords: recycled concrete; freez-thaw cycle test; polypropylene fiber; GLWR-agent; damage parameter ...
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The damage variable is defined.
定义了损伤变量,得到了损伤积累和演化规律。
参考来源 - 混凝土单轴、双轴动态强度和变形试验研究A new method to calculate damage variance(D) by using principle of minimum consume energy was discussed, and a new programme to detect material damage by using microhardness principle was planned.
提出了损伤变量D的最小耗能原理确定法并设计了利用微观硬度原理检测构件损伤的试验方案。
参考来源 - 考虑损伤累积的张弦梁动力失效全过程分析Expression for fatigue crack life is set up which takes energy of plastic deformation for crack propagation as the damage variable.
建立以裂纹扩展塑性变形能为损伤变量的疲劳裂纹寿命表达式。
参考来源 - 压力容器用钢16MnR高温损伤后应变疲劳特性研究It is also feasible in actual measurement to correctly reflect the physic characteristics of fatigue damage accumulation by the damage parameter which is defined by cumulative residual plastic strain energy.
以累积残余塑性能定义的损伤变量较为正确地反映出疲劳损伤累积的物理特征,在实际测量中也是可行的。
参考来源 - 压力容器用钢16MnR高温损伤后应变疲劳特性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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