TY - JOUR
T1 - Development of a Finite-Element-Based Design Sensitivity Analysis for Buckling and Postbuckling of Composite Plates
AU - Guo, Ruijiang
AU - Chattopadhyay, Aditi
PY - 1995
Y1 - 1995
N2 - A finite element based sensitivity analysis procedure is developed for buckling and postbuckling of composite plates. This procedure is based on the direct differentiation approach combined with the reference volume concept. Linear elastic material model and nonlinear geometric relations are used. The sensitivity analysis technique results in a set of linear algebraic equations which are easy to solve. The procedure developed provides the sensitivity derivatives directly from the current load and responses by solving the set of linear equations. Numerical results are presented and are compared with those obtained using finite difference technique. The results show good agreement except at points near critical buckling load where discontinuities occur. The procedure is very efficient computationally.
AB - A finite element based sensitivity analysis procedure is developed for buckling and postbuckling of composite plates. This procedure is based on the direct differentiation approach combined with the reference volume concept. Linear elastic material model and nonlinear geometric relations are used. The sensitivity analysis technique results in a set of linear algebraic equations which are easy to solve. The procedure developed provides the sensitivity derivatives directly from the current load and responses by solving the set of linear equations. Numerical results are presented and are compared with those obtained using finite difference technique. The results show good agreement except at points near critical buckling load where discontinuities occur. The procedure is very efficient computationally.
KW - Composite plates
KW - buckling and postbuckling
KW - finite-element model
KW - sensitivity analysis
UR - http://www.scopus.com/inward/record.url?scp=84939807976&partnerID=8YFLogxK
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U2 - 10.1155/S1024123X95000160
DO - 10.1155/S1024123X95000160
M3 - Article
AN - SCOPUS:84939807976
SN - 1024-123X
VL - 1
SP - 255
EP - 274
JO - Mathematical Problems in Engineering
JF - Mathematical Problems in Engineering
IS - 3
ER -