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应力集中圆孔附近的形变场
  • ISSN号:1006-4540
  • 期刊名称:安徽建筑工业学院学报(自然科学版)
  • 时间:2011
  • 页码:22-24
  • 分类:O344.3[理学—固体力学;理学—力学] TB333[一般工业技术—材料科学与工程]
  • 作者机构:[1]MOE Key Lab of Disaster and Control in Engineering, Institute of Applied Mechanics, Jinan University, Guangzhou 510632, China
  • 相关基金:the Science and Technology Scheme of Guangzhou City (No. 201510010013), the Science and Technology Scheme of Guangdong Province (No. 2012A030200003) and the National Natural Science Foundation of China (No. 11032005).
  • 相关项目:深海管中管复合结构稳定性与屈曲传播的非线性力学研究
中文摘要:

The interfacial behavior of pipe joints is studied in this paper. Firstly, through nonlinear fracture mechanics, the analytical expressions of interfacial shear stress and the loaddisplacement relationship at loaded end of pipe joints under torsion loads are obtained. Thus the shear stress propagation and the debonding process of the whole interface for different bond lengths can be predicted. Secondly, through the analytical solutions, the influences of different bond lengths on the load-displacement curve and the ultimate load are studied. The stress transfer mechanism, the interface crack propagation and the ductility behavior of the joints can be explained.

英文摘要:

The interfacial behavior of pipe joints is studied in this paper. Firstly, through nonlinear fracture mechanics, the analytical expressions of interfacial shear stress and the load- displacement relationship at loaded end of pipe joints under torsion loads are obtained. Thus the shear stress propagation and the debonding process of the whole interface for different bond lengths can be predicted. Secondly, through the analytical solutions, the influences of different bond lengths on the load-displacement curve and the ultimate load are studied. The stress trans- fer mechanism, the interface crack propagation and the ductility behavior of the joints can be explained.

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