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Volume 33 Issue 5
Mar.  2025
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QIAO Hongwei, LIU Zhiwei, LI Xihua, ZHANG Yong, LI Qi. Study on J-Integral Tearing Modulus Inter-Section Method in LBB Technology[J]. Nuclear Power Engineering, 2012, 33(5): 26-31.
Citation: QIAO Hongwei, LIU Zhiwei, LI Xihua, ZHANG Yong, LI Qi. Study on J-Integral Tearing Modulus Inter-Section Method in LBB Technology[J]. Nuclear Power Engineering, 2012, 33(5): 26-31.

Study on J-Integral Tearing Modulus Inter-Section Method in LBB Technology

  • Received Date: 2011-07-22
  • Rev Recd Date: 2012-07-16
  • Available Online: 2025-03-08
  • J-integral tearing modulus inter-section method(J-T) for limit load and critical crack length calculation in LBB technology is introduced.J-integral of cracks with three kinds of crack length are calculated by finite element program ABAQUS firstly,then the relationship between J-integral and crack length is surrogated by a polynomial,and the limit load and critical crack length are obtained based on the polynomial at last.The validity of the J-T method is checked by an example provided by FLET program.The results demonstrated that precision of unstable J-integral calculation is improved by the ABAQUS-based J-T method,and the proposed method is more universal and suitable for the LBB analysis of complex structures.

     

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