Howard J. Feldman, the director of regulatory and scientific affairs at the American Petroleum Institute, noted that the evidence of a causal factor was inconclusive for some ailments.
The strength matching factor m has a great influence on the J integral in the vicinity of the crack tip.
焊接接头强度匹配因子m对裂纹尖端的J积分值有很大的影响。
3
The results show that the j and f factors increase with the fin space and fin length decreasing, and the fin space has more obvious effect on the area of optimization factor.