The formation and effect of outer-ply microcracks in cross-ply laminates: A variational approach

Autor:	John A. Nairn, Shoufeng Hu
Rok vydání:	1992
Předmět:	Strain energy release rate Materials science Mechanics of Materials Mechanical Engineering Delamination General Materials Science Cross ply Fracture mechanics Bending Composite material Saturation (chemistry) Thermal expansion
Zdroj:	Engineering Fracture Mechanics. 41:203-221
ISSN:	0013-7944
DOI:	10.1016/0013-7944(92)90181-d
Popis:	The paper presents a variational mechanics analysis of the stresses and energy release rate in a (90m/0n)s laminate, with account taken of the observed existence of staggered microcracks. It is found that the load required to initiate microcracks is significantly lower for (90m/0n)s laminates than for (0n/90m)s laminates. It is also found that (90m/0n)s laminates are characterized by a lower saturation crack density and that no bending effects tend to promote mode I delamination in (90m/0n)s laminates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::11766cd8dc506b13e9e6f7aee97c5c58 https://doi.org/10.1016/0013-7944(92)90181-d Zobrazit plný text záznamu