The Volume Strain Energy Density Factor Criterion forSharp V-notches under Mixed-mode Ⅰ and Ⅱ

摘要：

　　This paper presents a new energy approach based on the concept of a volume stain-energy-density factor Sv useful to deal with the general problem of brittle fracture for sharp V-notches under mixed-mode Ⅰ and Ⅱ.The basic assumption is that the fracture occurs when the volume strain energy density factor arrive at its critical value Svc in the direction of crack initiation where the deviator strain energy density factor Sf is minimum.The method is validated taking into account experiment data already reported in the literature and the analytical predictions are in good agreement with experiment data.It indicates that the accuracy of the new approach is undoubtedly very satisfactory and can be applied in engineering.

关键词： V-notches brittle fracture volume strain energy density factor experimental verification

作者: Xiaomei Liu Yongming Bian Yongcheng Liang

作者单位: School of Mechanical Engineering, Tongji University, Shanghai, 200092-China;Shanghai University of E School of Mechanical Engineering, Tongji University, Shanghai, 200092-China College of Engineering Science and Technology, Shanghai Ocean University, Shanghai, 201306-China

会议类型: 国际会议

会议名称: 2014 SEM Fall Conference and International Symposium on Intensive Loading and Its Effects(国际实验力学学会2014年秋季会议、强化装载及其影响国际研讨会)

会议地点: 北京

会议语种:英文

页码: 221-227

在线出版日期: 2014-10-19（万方平台首次上网日期，不代表论文的发表时间）