The contact problem at delamination

Giannakopoulos, AE; Nilsson, KF; Tsamasphyros, G

dc.contributor.author	Giannakopoulos, AE	en
dc.contributor.author	Nilsson, KF	en
dc.contributor.author	Tsamasphyros, G	en
dc.date.accessioned	2014-03-01T01:11:31Z
dc.date.available	2014-03-01T01:11:31Z
dc.date.issued	1995	en
dc.identifier.issn	0021-8936	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11682
dc.subject	Contact Problem	en
dc.subject.classification	Mechanics	en
dc.subject.other	INTERFACE CRACKS	en
dc.subject.other	PLATE-THEORY	en
dc.subject.other	GROWTH	en
dc.title	The contact problem at delamination	en
heal.type	journalArticle	en
heal.identifier.primary	10.1115/1.2896034	en
heal.identifier.secondary	http://dx.doi.org/10.1115/1.2896034	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	The important phenomenon of delamination buckling is examined subjected to the condition of frictionless contact. Buckled delamination is examined in particular, because in-plane compressive loading is typical and detrimental. Two types of contact can be distinguished, local and global. The latter may occur everywhere in the plate while the local contact is limited to the crack front (negative K-I stress intensity factors). Both local and global contact conditions were considered using a finite element scheme which employed nonlinear plate theory. The global contact problem is formulated as it appears in post-buckling of delamination The case of simultaneous buckling and contact is also addressed in this paper. Two particularly interesting examples of thin film delaminations are presented In the first, the contact at buckling is due to the material anisotropy. In this case the bucking load and the post-bucking analysis were very well supported by experiments. In the second example, contact at buckling arises because of a pin that holds down the delaminated layer at its center. The treated cases indicated that contact may significantly affect the fracture parameters along the delamination front, and is, therefore, important for delamination arrest.	en
heal.publisher	ASME-AMER SOC MECHANICAL ENG	en
heal.journalName	JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME	en
dc.identifier.doi	10.1115/1.2896034	en
dc.identifier.isi	ISI:A1995TY06700027	en
dc.identifier.volume	62	en
dc.identifier.issue	4	en
dc.identifier.spage	989	en
dc.identifier.epage	996	en