Analytical prediction of Mode I stress intensity factors for cracked panels containing bonded stiffeners

作者：Rans Calvin^*; Rodi Riccardo; Alderliesten Rene

来源：Engineering Fracture Mechanics, 2013, 97: 12-29.

DOI：10.1016/j.engfracmech.2012.11.001

• Fatigue
• Damage tolerance
• Crack growth
• Bonded stiffener
• Stress intensity factor

An analytical model for stress intensity factors in cracked skin panels containing bonded stiffening elements, based on the principles of superposition and displacement compatibility, is presented. The methodology permits assessment of the influence of stiffening elements ahead, behind, and over top of the skin panel crack tip, and allows the influence of stiffener interface disband size to be studied. Validation of the model is made using experimental data from various literature sources. The influence of stiffener geometry and interface disbond size on damage tolerance is discussed using predictions from the presented model.

• 出版日期2013-1