含轴向贯穿裂纹三通断裂有限元计算方法

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Analysis Method by Fracture Finite Element for Tee with Longitudinal Through-Wall Crack

National Key Laboratory of Reactor System Design Technology, Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 基于有限元程序ABAQUS开展了对含轴向贯穿裂纹三通断裂有限元计算方法的研究,重点介绍了计算模型的建立、J-积分计算方法的研究。将直管的有限元计算结果与理论计算结果进行了对比,结果表明,二者基本吻合。由此表明,在应用ABAQUS程序进行计算J-积分时,所用的计算方法、参数的输入、奇异单元的选取等是正确的。因此,可按该方法和步骤应用ABAQUS程序计算含裂纹三通的J-积分。
- ABAQUS程序 /
- 裂纹 /
- 三通 /
- 断裂 /
- 研究
Abstract: This paper presents how to use finite element procedure ABAQUS to conduct the fracture finite element analysis for tee with longitudinal through-wall crack,and focuses on the establishment of computation model and calculation method of J-integral.The finite element computation results are compared with the therotical results for the straight pipe,which showes that the two results are almost the same.This indicates that the method,input and singular element which used to calculate J-integral are correct.The methods and processes can be used to analyze J-integral of tee with longitudinal through-wall crack by ABAQUS.
- ABAQUS procedure /
- Flaw /
- Tee /
- Fracture /
- Research