TY - GEN
T1 - Asymptotic post-buckling fem analysis of laminated composite folded plates
AU - Barbero, E. J.
AU - Madeo, A.
AU - Zagari, G.
AU - Zinno, R.
AU - Zucco, G.
PY - 2014
Y1 - 2014
N2 - Koiter's asymptotic approach is a powerful alternative to path-following techniques in the analysis of slender structures. Its reliability for the evaluation of post-critical behavior, including strong nonlinear pre-critical and modal interaction, is well know. The most recent finite element implementations of Koiter's approach are based on corotational formulation, which allows to automatically reuse linear finite elements into a nonlinear context once the geometrically nonlinear corotational kinematics are developed. Beam assemblages, folded plates structures are extended here to laminated composite slender structures. By reusing the mixed finite element MISS-4 into a corotational framework, an analysis of folded plate structures within an FSDT theory is developed. The analysis of a box structure is presented to highlight the accuracy of the Koiter analysis in the recovery of buckling and post-buckling behavior with low computational cost.
AB - Koiter's asymptotic approach is a powerful alternative to path-following techniques in the analysis of slender structures. Its reliability for the evaluation of post-critical behavior, including strong nonlinear pre-critical and modal interaction, is well know. The most recent finite element implementations of Koiter's approach are based on corotational formulation, which allows to automatically reuse linear finite elements into a nonlinear context once the geometrically nonlinear corotational kinematics are developed. Beam assemblages, folded plates structures are extended here to laminated composite slender structures. By reusing the mixed finite element MISS-4 into a corotational framework, an analysis of folded plate structures within an FSDT theory is developed. The analysis of a box structure is presented to highlight the accuracy of the Koiter analysis in the recovery of buckling and post-buckling behavior with low computational cost.
KW - Buckling and post-buckling
KW - Corotational kinematics
KW - Imperfection sensitivity analysis
KW - Laminated composite folded plates
KW - Mixed finite element
UR - http://www.scopus.com/inward/record.url?scp=84915746932&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84915746932
T3 - 16th European Conference on Composite Materials, ECCM 2014
BT - 16th European Conference on Composite Materials, ECCM 2014
PB - European Conference on Composite Materials, ECCM
T2 - 16th European Conference on Composite Materials, ECCM 2014
Y2 - 22 June 2014 through 26 June 2014
ER -