|
|
||
|
|
|
|
FROM:
D. Tumino, F. Cappello and G. Catalanotti (Dipartimento di Meccanica, Universita' degli Studi di Palermo, V.le delle Scienze - 90128 Palermo, Italy),
“A continuum damage model to simulate failure in composite plates under uniaxial compression”, eXPRESS Polymer Letters, Vol. 1, No. 1, pp 15-23, 2007, DOI: 10.3144/expresspolymlett.2007.4
ABSTRACT: Experimental investigations and numerical simulations are performed in order to numerically predict the buckling behaviour of thin composite laminated specimens. Experiments are aimed at two objectives: the first is to completely characterize the carbon/epoxy material under simple loading configurations, the second is to test this material in buckling and post-buckling situations. The data collected with the first campaign of experiments are used to obtain the strength parameters required to define a damage model based on the failure theory by Tsai-Wu. This model is implemented in a Finite Element (FE) code and numerical simulations of buckling are executed for unidirectional and cross-ply laminates; results are in good agreement with experiments both in terms of determination of the critical loads and prediction of failure during post-buckling.
Page 97 / 410