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Crippling analysis of composite stringers based on complete unloading method
- Source :
-
Computers & Structures . Nov2002, Vol. 80 Issue 27-30, p2167. 9p. - Publication Year :
- 2002
-
Abstract
- This paper addresses a nonlinear finite element method for the crippling analysis of composite laminated stringers. For the finite element modeling, a nine-node laminated shell element based on the first order shear deformation theory is used. Failure-induced stiffness degradation is simulated by the complete unloading method. A modified arc-length algorithm is incorporated in the nonlinear finite element method to trace the post-failure equilibrium path after a local buckling. Finite element results show excellent agreement with those of previous experiment. A parametric study is performed to assess the effect of the flange-width, web-height, and stacking sequence on the buckling, local buckling, and crippling stresses of stringers. [Copyright &y& Elsevier]
- Subjects :
- *FINITE element method
*DEFORMATIONS (Mechanics)
Subjects
Details
- Language :
- English
- ISSN :
- 00457949
- Volume :
- 80
- Issue :
- 27-30
- Database :
- Academic Search Index
- Journal :
- Computers & Structures
- Publication Type :
- Academic Journal
- Accession number :
- 8567668
- Full Text :
- https://doi.org/10.1016/S0045-7949(02)00272-9