Crack nucleation from a wedge disclination dipole with shift of rotation axes

• Main Author: Wu, Mao See
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Mechanical engineering; Crack Nucleation; Wedge Disclination Dipole
• Online Access: https://hdl.handle.net/10356/141173
• Institution: Nanyang Technological University

This paper analyzes crack nucleation from a wedge disclination dipole in the presence of a remote stress, accounting for the shift of the rotation axes within the dipole arm of the disclinations. A Zener–Griffith crack is assumed and an energy method is employed for the analysis. A single energy equ...