Localizing gradient damage model with decreasing interactions

• Published in: International journal for numerical methods in engineering Vol. 110; no. 6; pp. 503 - 522
• Main Authors: Poh, Leong Hien, Sun, Gang
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 11.05.2017; Wiley Subscription Services, Inc
• Subjects: Consistency; Damage; Damage assessment; Deformation; Failure; Finite element method; Fracture mechanics; frature; gradient damage; localization; Microcracks; micromorphic continua

Summary Nonlocal integral and/or gradient enhancements are widely used to resolve the mesh dependency issue with standard continuum damage models. However, it is reported that whereas the structural response is mesh independent, a spurious damage growth is observed. Accordingly, a class of modified...