Geometric correction factors determined by force balance method for center cracked specimens - XII. Subjected to a nonlinear bridging stress in shear lag model in fiber-reinforced composites

摘要

The improvement in fatigue and fracture resistance in composite materials is directly related to the toughening mechanisms. To understand better the shielding/bridging effect close to the crack tip, it is necessary to evaluate the geometric correction factor, induced by the bridging stresses existing on the fracture surfaces, for finite-width specimens. Force balance method was applied to determine the geometric correction factor for a center cracked specimen subjected to a nonlinear bridging stress in the shear lag model in fiber-reinforced composites. [References: 14]