A general sandwich‐type model for delamination failure in angle‐ply laminates under thermo‐mechanical loading. Issue 1 (14th December 2021)

• Record Type: Journal Article
• Authors: Frey, Christopher; Dölling, Sebastian; Becker, Wilfried
• Editors: Kaliske, M.
• Is Part Of: Proceedings in applied mathematics and mechanics. Volume 21:Issue 1(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-12-14
• Subjects: Applied mathematics -- Periodicals; Engineering mathematics -- Periodicals; Mathematical physics -- Periodicals; 519
• DOI: 10.1002/pamm.202100058
• Languages: English
• ISSNs: 1617-7061

Abstract

Abstract: We propose a highly efficient analytical closed‐form approach to assess the interlaminar stresses at the free edge in symmetric angle‐ply laminates under uniform axial extension and homogeneous thermal loading. The model is based on a two‐dimensional generalized plane strain representation of the structural situation – a so‐called general sandwich‐type model. Using the results of this approach we predict the delamination onset by means of a coupled stress and energy criterion within the framework of finite fracture mechanics. For comparative purposes we use numerical results from a cohesive zone model as well as experimental findings from the literature.