Mixed mode delamination of asymmetric beam-like geometries with cohesive stresses. (15th December 2018)

• Record Type: Journal Article
• Authors: Maimí, P.; Gascons, N.; Ripoll, L.; Llobet, J.
• Is Part Of: International journal of solids and structures. Volume 155(2018)
• Page Start: 36
• Page End: 46
• Publication Date: 2018-12-15
• Subjects: Bimaterial -- Delamination -- Fracture toughness -- Mixed mode fracture; 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.2018.06.032
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: The partition of the energy release rate of beam-like geometries is analyzed here. Several methods for partitioning mode I and II energy release rates are presented and critically compared. A Timoshenko beam theory with Dugdale cohesive stress is applied and results show a mixed mode energy release rate dependence on the interface fracture toughness. A geometry is proposed that eliminates this dependence, offering a method to characterize the fracture properties of interfaces between dissimilar materials.