Elastic buckling analysis of perforated thin-walled structures by the isoparametric spline finite strip method

2008 ◽  
Vol 46 (2) ◽  
pp. 165-191 ◽  
Author(s):  
G. Eccher ◽  
K.J.R. Rasmussen ◽  
R. Zandonini
Keyword(s):  
Buckling Analysis ◽  
Elastic Buckling ◽  
Finite Strip ◽  
Strip Method ◽  
Thin Walled Structures ◽  
Finite Strip Method ◽  
Thin Walled ◽  
Spline Finite Strip

Structural Sensitivity Analysis in Eigenvalue Problems Using Finite Strip Method

1994 ◽  
Author(s):  
Andrzej Garstecki ◽  
Witold Kakol
Keyword(s):  
Sensitivity Analysis ◽  
Eigenvalue Problems ◽  
Structural Sensitivity ◽  
Finite Strip ◽  
Strip Method ◽  
Thin Walled Structures ◽  
Finite Strip Method ◽  
Structural Sensitivity Analysis ◽  
Thin Walled ◽  
Methods Numerical

Abstract Structural Sensitivity Analysis is performed using the direct differentiation method for buckling and free vibration problems of prismatic thin-walled structures employing the Finite Strip Method. The sensitivity of eigenvalues (critical stresses and free frequencies) with respect to variation of thickness of plate members and with respect to shape-type variations is considered. The differentiation is carried out employing analytical and semi-analytical methods. Numerical examples illustrate the sensitivity of thin-walled plates stiffened with ribs and thin-walled beams. The examples also serve for discussion of numerical efficiency and accuracy of the presented methods.

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