A mode II cohesive crack in an infinite medium subjected to remote heat flux - Effect of thermal resistance of the cohesive zone

作者：Wang, J.; Jin, Z-H^*; Gao, C-F^*

来源：Engineering Fracture Mechanics, 2018, 204: 147-156.

DOI：10.1016/j.engfracmech.2018.09.039

• Interfacial thermal resistance
• Crack
• Cohesive zone
• Thermal stress
• Crack sliding displacement

The present work aims to investigate the effect of interfacial thermal resistance of a cohesive zone on thermal fracture behavior of materials. We consider the development of a cohesive zone at the tip of a mode II crack in an infinite plate subjected to remote heat flux thermal loading. Thermal resistance is assumed to exist along the cohesive zone. The heat conduction and thermal crack/ cohesive zone problem becomes a fully coupled, nonlinear one due to the interaction between the cohesive zone length and temperature field. The temperature distribution along the crack/cohesive zone, the cohesive zone length, and the crack tip sliding displacement are obtained. The numerical results show that the cohesive zone length increases with an increase in the interfacial thermal resistance of the cohesive zone. The crack tip sliding displacement is also significantly influenced by the thermal resistance of the cohesive zone.

• 出版日期2018-12
• 单位南京航空航天大学