Fatigue damage of quasi-isotropic composite laminates under tensile loading in different directions

Autor:	In Kweon Kim, Kyung Seop Han, Chang Duk Kong
Rok vydání:	2000
Předmět:	Strain energy release rate Materials science business.industry Mechanical Engineering Delamination Fracture mechanics Structural engineering Epoxy Composite laminates Strain rate Strain energy visual_art Ultimate tensile strength visual_art.visual_art_medium business
Zdroj:	KSME International Journal. 14:483-489
ISSN:	1226-4865
DOI:	10.1007/bf03185650
Popis:	The purpose of this work is to investigate fatigue damage of quasi-isotropic laminates under tensile loading in different directions. Low cycle fatigue tests of [0/−60/60]s laminates and [30/−30/90]s laminates were carried out. Material systems used are AS4/Epoxy and AS4/PEEK. The fatigue damage of [30/−30/90]s is very different from that of [0/−60/60]s. The experimental results are compared with the result obtained from the method for determining strain energy release rate components proposed by the authors. The analytical results were in good agreement with the experimental results. It is proved that the failure criterion based on the strain energy release rate is an appropriate approach to predict the initiation and growth of delaminations under cyclic loading.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1947707c61e669954091608bc12d1f46 https://doi.org/10.1007/bf03185650 Zobrazit plný text záznamu Full text from SpringerLink