Micromechanically based constitutive models for damage evolution in composite laminates
2000 (English)In: International journal of damage mechanics, ISSN 1056-7895, E-ISSN 1530-7921, Vol. 9, no 1, 29-39 p.Article in journal (Refereed) Published
The structure of micromechanically based constitutive models for composite laminates developing transverse matrix cracks, local delaminations, fibre/matrix debonding and fibre fractures is discussed. Nondimensional damage variables describing these four damage modes are introduced and the principal form of a damage dependent constitutive law is formulated. As a special case transverse matrix cracking is investigated in further detail. A previously developed model for stiffness changes resulting from transverse matrix cracking is presented, and criteria for initiation and growth of transverse cracks are discussed. In particular, limitations of the linear elastic fracture mechanics approach are investigated and a cohesive zone model capturing crack bridging effects is suggested.
Place, publisher, year, edition, pages
2000. Vol. 9, no 1, 29-39 p.
damage evolution, matrix cracking, nonlinear fracture mechanics, cohesive zones, micromechanics, transverse matrix cracks, thermoelastic properties, extension, fracture, strain, glass
IdentifiersURN: urn:nbn:se:kth:diva-19842DOI: 10.1106/CE43-VMLV-H7KX-FNM5ISI: 000087707400002OAI: oai:DiVA.org:kth-19842DiVA: diva2:338534
QC 201005252010-08-102010-08-102010-10-22Bibliographically approved