A study of mixed-mode composite delamination using enriched interface elements

Autor:	Lorenzo Iannucci, Irene Guiamatsia, J.K. Ankersen
Rok vydání:	2013
Předmět:	Materials science Interface (computing) Delamination Displacement field Composite number Range (statistics) Aerospace Engineering Bending Composite material Finite element method Beam (structure)
Zdroj:	The Aeronautical Journal. 117:959-967
ISSN:	2059-6464 0001-9240
DOI:	10.1017/s0001924000008617
Popis:	This paper examines the performance of enriching the shape functions of interface finite elements in the prediction of mixed-mode delamination. Enriching second-order interface and solid elements with the analytical solution of a beam on elastic foundation problem yields the correct displacement field ahead of the crack tip. Despite the enrichment being fixed at elements nodes, resulting in non-traceability of the crack tip location, the strategy is shown to perform consistently well, increasing the minimum element size from the typical 0·5mm to 5mm, for a range of classical mixed-mode bending (MMB) specimens.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5b929e8a986053990c704e9c6f12c9e6 https://doi.org/10.1017/s0001924000008617 Zobrazit plný text záznamu