Experimental and Numerical Investigations of the Effect of Bolt Position on the Mixed-Mode Fracture Strength of Edge Crack Specimens, By Babak Abazadeh

Research

Title	Experimental and Numerical Investigations of the Effect of Bolt Position on the Mixed-Mode Fracture Strength of Edge Crack Specimens
Type	Article
Keywords	Bolt Position - Mixed-Mode Fracture Strength -Edge Crack Specimens
Researchers	Hadi Naseri Maleki، Babak Abazadeh، Tajbakhsh Navid Chakherlou

Abstract

Experimental and numerical investigations were conducted to evaluate the effect of bolt position along the crack length on the mixed-mode fracture strength and effective stress intensity geometry/loading factor. The experimental tests were carried out on different batches of torque-tightened edge crack specimens, including those with bolts at different distances from the crack tip and simple (without bolt) ones. Finite-element simulations were employed to find the stress intensity geometry factors. The results showed a considerable increase in the fracture strength and a reduction of stress intensity factors in specimens with a bolt positioned closer to the crack tip.