A Property Degradation Model for Fibre Microbuckling Failure in Composite Laminates

A progressive damage failure model, which is making an attempt to predict damage growth and ultimate compressive strength of notched laminates subjected to uniaxial compression is presented. The model consists of two parts, namely the stress analysis and the failure analysis. Stresses and strains in...

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Bibliographic Details
Published in:Science and engineering of composite materials 1995, Vol.4 (1), p.27-34
Main Authors: Soutis, C., Tenchev, R.
Format: Article
Language:English
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Summary:A progressive damage failure model, which is making an attempt to predict damage growth and ultimate compressive strength of notched laminates subjected to uniaxial compression is presented. The model consists of two parts, namely the stress analysis and the failure analysis. Stresses and strains in the notched panel are calculated on the basis of classical laminate plate theory with the basis of classical laminate plate theory with the consideration of material nonlinearity. Damage accumulation in the laminate is estimated by proposed failure criteria combined with a proposed property degradation model. A non-linear finite element program is developed to perform the ply-by-ply stress analysis and numerical results are compared with existing experimental data /1,2/; the agreement is acceptable.
ISSN:0792-1233
2191-0359
DOI:10.1515/SECM.1995.4.1.27