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- Title
Contact Force and Friction of Generally Layered Laminates with Residual Hygrothermal Stresses under Mode II In-Plane-Shear Delamination.
- Authors
Polyzos, Efstratios; Van Hemelrijck, Danny; Pyl, Lincy
- Abstract
Mode II (in-plane-shear) delamination tests are more complex than mode I (opening) due to the presence of a contact force between the two arms. This force is essential for the calculation of the energy release rate (ERR) and is closely linked to friction effects. A novel formulation is presented in this article to estimate the contact force analytically. Specifically, the contact force is derived within the context of the rigid, semi-rigid, and flexible joint models. The analytical solutions consider the case of a generally layered composite laminate with residual hygrothermal stresses and are used to evaluate the ERR. The new formulation is compared with numerical models created using the Virtual Crack Closure Technique (VCCT) and the Cohesive Zone Method (CZM) for a fiber–metal laminate. The results show that the new formulation provides nearly identical ERR predictions to those of the VCCT and CZM models. Additionally, it is demonstrated that the effect of friction on the ERR is less than 1%.
- Subjects
FORCE &; energy; LAMINATED materials; RESIDUAL stresses; CRACK closure; ANALYTICAL solutions
- Publication
Applied Sciences (2076-3417), 2024, Vol 14, Issue 16, p7045
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app14167045