Stress and fracture analysis in pin loaded lugs using boundary element methods

• Main Author: Zhao, Lei.
• Other Authors: Ang Hock Eng
• Format: Theses and Dissertations
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Mechanical engineering
• Online Access: http://hdl.handle.net/10356/54785
• Institution: Nanyang Technological University

Pin-loaded tapered lugs with and without cracks were analyzed using boundary element method to determine the tangential stress distribution and the stress intensity factors. The effects of various parameters such as the angle between the two edge surfaces of the tapered head, the outer-to-inner radius ratio, the direction of the load applied and the crack length were evaluated. The location where a crack may initiate and subsequently propagate was determined by finding the tangential stress distribution along the edge of the hole in the unflawed lug. In the presence of a crack, the stress intensity factor is sensitive to the outer-to-inner radius ratio (Ro/Ri) and the crack length a.