A cohesive zone model and scaling analysis for mixed-mode interfacial fracture. (15th December 2017)

• Record Type: Journal Article
• Authors: Jain, Shruti; Na, Seung Ryul; Liechti, Kenneth M.; Bonnecaze, Roger T.
• Is Part Of: International journal of solids and structures. Volume 129(2017)
• Page Start: 167
• Page End: 176
• Publication Date: 2017-12-15
• Subjects: Adhesion -- Damage criteria -- Delamination -- Mixed-mode fracture -- Interface -- Cohesive zone model -- Traction-separation relations; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2017.09.002
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: 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.