Title: Finite Element Method Simulations of the Delamination in Laminated Composite Structures
Other Titles: Finite Element Method Simulations of the Delamination in Laminated Composite Structures
Language: English
Authors: Ceglar, Tilen 
Qualification level: Diploma
Advisor: Pettermann, Heinz  
Issue Date: 2017
Number of Pages: 81
Qualification level: Diploma
Finite Element Method (FEM) simulations of the delamination in fabric laminates with complex topology require considerable computational power, in particular when material and interface nonlinearities are taken into account. A multi-scale embedding approach is presented which is capable to capture the nonlinear mechanisms inside textile plies while the computational eort is kept relative low. The approach is used to simulate the response of Double Cantilever Beam (DCB) tests and three point End Notch Flexure (ENF) tests. Delamination is evaluated in terms of nonlinear load displacement curves, critical energy release rates and dissipated energy. Besides the global response, local eects are investigated and the localized patterns of the various non- linear mechanisms are predicted. This way, detailed insight to the global delamination behaviour as well as the locally involved mechanics is obtained quantitatively.
Keywords: Finite Element Method; laminated composite structure; delamination; embedding approach; cohesive zone; shell elements
URI: https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:1-94500
Library ID: AC13462005
Organisation: E317 - Institut für Leichtbau und Struktur-Biomechanik 
Publication Type: Thesis
Appears in Collections:Thesis

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