Experiment and simulation of a crack growing by material dissolution

DSpace Repository

Experiment and simulation of a crack growing by material dissolution

Overview

Detailed record

dc.contributor.author Hejman, Ulf
dc.contributor.author Ståhle, Per
dc.contributor.author Bjerkén, Christina
dc.date.accessioned 2008-01-10T10:49:10Z
dc.date.available 2008-01-10T10:49:10Z
dc.date.issued 2007
dc.identifier.uri http://hdl.handle.net/2043/5146
dc.description.abstract Crack growth and crack path under a fracture mechanical experiment in polycarbonate is studied. The material, a polycarbonate, is photo elastic witch makes it possible to do an optical stress field analysis. The crack path and crack branching is also predicted by an adaptive finite element analysis. The crack growth is a result of stress induced, chemically activated material dissolution that completely determines the geometry of the specimen, including the shape and length of the crack. In this case, the mechanisms and processes leading to crack growth are assumed to be incorporated in a general material dissolution process. As a consequence of this assumption there is no need for a crack criterion or crack path hypothesis. The lack of crack path criterion imposes an arbitrary length scale where the crack width scales with the square of the applied load but the crack growth rate is independent of the load. Numerical calculations suggest that the crack is capable of branching and that the branches will continue to grow at the same rate as the original crack. The numerical results are verified by the photo elastic experiments and a reasonable agreement is established. en
dc.format.extent 1
dc.language.iso eng en
dc.subject stress corrosion en
dc.subject crack branching en
dc.subject poly carbonate en
dc.subject.classification Technology en
dc.title Experiment and simulation of a crack growing by material dissolution en
dc.title.alternative Chemically assisted stress corrosion in polycarbonate en
dc.type Conference other en
dc.identifier.paperprint 0 en
dc.contributor.department Malmö University. School of Technology en
dc.description.other 1st Betram Broberg Symposium on mechanics of materials, Dublin, May 2007. en
dc.subject.srsc Research Subject Categories::TECHNOLOGY::Engineering physics::Material physics with surface physics en
dc.subject.srsc Research Subject Categories::TECHNOLOGY::Materials science::Other materials science en
dc.subject.srsc Research Subject Categories::TECHNOLOGY::Engineering mechanics::Solid mechanics en
dc.relation.ispartofpublication Abstracts 1st Bertram Broberg symposium on mechanics of materials;1 en
dc.relation.ispartofpublicationvolume 1 en
dcterms.description.conferenceName Betram Broberg Symposium on mechanics of materials
dcterms.description.conferencePlace Dublin, Ireland
dcterms.description.conferenceYear 2007
mahlocal.rights.oaType green
 Find Full text Files for download
Icon

This item appears in the following Collection(s)

Overview

Search


Browse

My Account

Statistics