A cohesive zone model and scaling analysis for mixed-mode interfacial fracture

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:129

Article

Jain, Shruti¹  Na, Seung Ryul²  Liechti, Kenneth M.²  Bonnecaze, Roger T.¹ 

[1] Univ Texas Austin, Dept Chem Engn, Austin, TX 78712 USA

[2] Univ Texas Austin, Dept Aerosp Engn & Engn Mech, Ctr Mech Solids Struct & Mat, Austin, TX 78712 USA

关键词: Adhesion;    Damage criteria;    Delamination;    Mixed-mode fracture;    Interface;    Cohesive zone model;    Traction-separation relations;   

DOI  :  10.1016/j.ijsolstr.2017.09.002

来源: Elsevier

【 摘 要 】

A semi-analytical methodology is developed to study mixed-mode interface fracture that combines beam theory and cohesive zone interactions. The method is validated with predictions from a non-linear commercial finite element package and results in the literature. Compared to commercial finite element packages, the method is significantly faster (>1000X) and robustly converges. Scaling equations are extracted that predict load, crack length, damage zone length and mode-mix. These equations can be used to extract cohesive zone interactions from experimentally obtained load-displacement data. (C) 2017 Elsevier Ltd. All rights reserved.

【 授权许可】

Free