Crack-tip principal stresses by isochromatic and isopachic fringes at a bi-material interface

Papadopoulos, GA; Kravaritis, J; Badalouka, B

dc.contributor.author	Papadopoulos, GA	en
dc.contributor.author	Kravaritis, J	en
dc.contributor.author	Badalouka, B	en
dc.date.accessioned	2014-03-01T01:26:04Z
dc.date.available	2014-03-01T01:26:04Z
dc.date.issued	2007	en
dc.identifier.issn	0376-9429	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17908
dc.subject	Bimateria interface	en
dc.subject	Contour of stresses	en
dc.subject	Cracks	en
dc.subject	Isochromatic fringes	en
dc.subject	Isopachic fringes	en
dc.subject.classification	Mechanics	en
dc.subject.other	Crack tips	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Interfaces (materials)	en
dc.subject.other	Photoelasticity	en
dc.subject.other	Poisson ratio	en
dc.subject.other	Stresses	en
dc.subject.other	Bimaterial interface	en
dc.subject.other	Contour of stresses	en
dc.subject.other	Isochromatic fringes	en
dc.subject.other	Isopachic fringes	en
dc.subject.other	Fracture	en
dc.title	Crack-tip principal stresses by isochromatic and isopachic fringes at a bi-material interface	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10704-008-9180-z	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10704-008-9180-z	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	An experimental method of the principal stresses estimation which is based on photoelasticity and isopachic methods is presented. The principal stresses at the bi-material interface crack-tip are theoretically determined using the combination photoelastic and isopachic fringes. The size and the shape of crack-tip isochromatic and isopachic fringes, at a bi-material interface under static load, are studied. When the crack-tip, which is perpendicular to interface, is placed at the interface of the bi-material, the isochromatic and the isopachic fringes depend on the properties of the two materials. Thus, the isochromatic and the isopachic fringes are divided into two branches, which present a jump of values at the interface. The size of the two branches mainly depends on the elastic modulus and the Poisson's ratio of the two materials. From the combination of the isochromatic and the isopachic fringes, the principal stresses σ1 and σ2 can be estimated and the contour curves around the crack-tip can be plotted. © Springer Science+Business Media B.V. 2008.	en
heal.publisher	SPRINGER	en
heal.journalName	International Journal of Fracture	en
dc.identifier.doi	10.1007/s10704-008-9180-z	en
dc.identifier.isi	ISI:000254899000006	en
dc.identifier.volume	148	en
dc.identifier.issue	1	en
dc.identifier.spage	73	en
dc.identifier.epage	78	en