The theory of J integral near cack tip in the plate of linear elastic orthotropic composite material are systematically studied in this paper.
本文对线弹性正交异性复合材料单层板裂纹尖端附近的J积分进行了系统的理论研究。
The main task of the system is to assess assembled vats, pressure vessels and rotation components by using COD and J-integral theory, and to assess large casting and forging components by FATT theory.
它的主要任务是对组合气缸、压力容器、旋转构件进行COD理论和J积分理论的评定，以及对大型铸锻构件进行断口形貌转变温度FATT的评定。
As the fracture assessment method based on COD theory is replaced by the method based on J-integral theory, it is greatly required simple and convenient, reliable evaluation method of J-integral.
随着以COD理论为基础的断裂评定方法被以弹塑性J积分理论为基础的断裂评定方法所取代，在工程实际应用中迫切需要简便、可靠的J积分估算方法。
The differences of J-integral between CT specimens with and without loading holes have been compared and analyzed by means of incremental theory elastic - plastic finite element calculations.
通过增量理论弹塑性有限元计算，对比分析了带和不带加载孔ct试样J积分之间的差异。
The J-integral fracture criterion based on HRR theory has been widely used in the studies of elastic-plastic fracture of materials.
在弹塑性断裂研究中广泛地采用着J积分断裂判据，这种判据的基础是HRR理论。近些年来，一些研究者基于数值分析和试验研究对HRR理论的适用性进行了讨论。
The J-integral fracture criterion based on HRR theory has been widely used in the studies of elastic-plastic fracture of materials.
在弹塑性断裂研究中广泛地采用着J积分断裂判据，这种判据的基础是HRR理论。近些年来，一些研究者基于数值分析和试验研究对HRR理论的适用性进行了讨论。
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