TY - JOUR
T1 - Postbuckling of non-linear viscoelastic imperfect laminated plates part I
T2 - Material considerations
AU - Touati, David
AU - Cederbaum, Gabriel
PY - 1998/1/1
Y1 - 1998/1/1
N2 - A method of predicting the non-linear relaxation behavior from creep experiments done on non-linear viscoelastic orthotropic materials is presented. Such a method is desirable since creep experiments are those mainly performed for these materials. It is shown that for given non-linear creep properties, and creep compliance represented by the Prony series, the Schapery creep model for non-linear viscoelastic orthotropic material can be transformed into a set of first-order non-linear equations. The solution of these equations makes it possible to obtain the non-linear stress relaxation curves, from which the strain-dependent constitutive equation of any non-linear viscoelastic model can be constructed, as needed for engineering applications.
AB - A method of predicting the non-linear relaxation behavior from creep experiments done on non-linear viscoelastic orthotropic materials is presented. Such a method is desirable since creep experiments are those mainly performed for these materials. It is shown that for given non-linear creep properties, and creep compliance represented by the Prony series, the Schapery creep model for non-linear viscoelastic orthotropic material can be transformed into a set of first-order non-linear equations. The solution of these equations makes it possible to obtain the non-linear stress relaxation curves, from which the strain-dependent constitutive equation of any non-linear viscoelastic model can be constructed, as needed for engineering applications.
UR - http://www.scopus.com/inward/record.url?scp=0032071204&partnerID=8YFLogxK
U2 - 10.1016/S0263-8223(98)00059-2
DO - 10.1016/S0263-8223(98)00059-2
M3 - Article
AN - SCOPUS:0032071204
VL - 42
SP - 33
EP - 41
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
IS - 1
ER -