THREE-DIMENSIONAL FEM ANALYSIS OF STRESS-INTENSITY FACTOR IN PETROLEUM DRILL PIPE JOINT WITH SURFACE CRACK Ⅰ.CALCULATION PROCEDURE AND MODEL
Zhao Hua, Li Zhonghua, Kuang Zhenbang, Zhang Yi, Li Helin
Editorial office of ACTA PETROLEI SINICA . 1992, (S1): 187 -193 .  DOI: 10.7623/syxb1992S1023

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