Zheng Yao. ON THE J INTEGRAL FOR REGIONAL HETEROGENEOUS WELDED JOINTS WITH CRACKS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1990, (4): 245-250.
Citation:
Zheng Yao. ON THE J INTEGRAL FOR REGIONAL HETEROGENEOUS WELDED JOINTS WITH CRACKS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1990, (4): 245-250.
Zheng Yao. ON THE J INTEGRAL FOR REGIONAL HETEROGENEOUS WELDED JOINTS WITH CRACKS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1990, (4): 245-250.
Citation:
Zheng Yao. ON THE J INTEGRAL FOR REGIONAL HETEROGENEOUS WELDED JOINTS WITH CRACKS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1990, (4): 245-250.
Proposing a counter example,it is proved that J integral is not conservative in regional heterogeneous media.Noticing the discontinuity of stress and strain components somewhere,J* integral is presented to modify J* integral.The pathindependence and the physical meaning of the J* integral,and the energy expression J*=-1∂U/B∂a are verified simply.The concept and the constitution approach of interface elements are put forward for regional heterogeneous media in elastoplastic FEM analysis.
HAN Yongquan, CHEN Shujun, YIN Shuyan, SONG Cheng. Arc stability and its control of VPPA[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2008, (4): 18-20.
DAI Da-shan, SONG Yong-lun, ZHANG-Hui, ZHU Yi-feng. Study on Arc Force In Plasma Welding[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2002, (2): 51-54.
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