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A Finite Element Analysis of a Crack Penetrating or Deflecting into an Interface in a Thin Laminate
Ansvarlig organisasjon
2006 (engelsk)Inngår i: Key Engineering Materials, ISSN 1013-9826, E-ISSN 1662-9795, Vol. 312, s. 173-178Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The crack tip driving force of a crack growing from a pre-crack that is perpendicular to and terminating at an interface between two materials is investigated using a linear fracture mechanics theory. The analysis is performed both for a crack penetrating the interface, growing straight ahead, and for a crack deflecting into the interface. The results from finite element calculations are compared with asymptotic solutions for infinitesimally small crack extensions. The solution is found to be accurate even for fairly large amounts of crack growth. Further, by comparing the crack tip driving force of the deflected crack with that of the penetrating crack, it is shown how to control the path of the crack by choosing the adhesion of the interface relative to the material toughness.

sted, utgiver, år, opplag, sider
Switzerland: Trans. Tech. Publications , 2006. Vol. 312, s. 173-178
Emneord [en]
Interface, crack tip driving force, adhesion, deflecting, penetrating.
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-9595ISI: 000237329600029Lokal ID: oai:bth.se:forskinfoBD8BF3A7D95AB8EBC12571CD0034C400OAI: oai:DiVA.org:bth-9595DiVA, id: diva2:837484
Tilgjengelig fra: 2012-09-18 Laget: 2006-08-17 Sist oppdatert: 2017-12-04bibliografisk kontrollert

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