Progressive Failure Analysis of Stiffened Composite Panels Using a Two-Way Loose Coupling Approach Including Intralaminar Failure and Debonding

2018 ◽  
Author(s):  
Margarita Akterskaia ◽  
Eelco Jansen ◽  
Raimund Rolfes
Keyword(s):  
Failure Analysis ◽  
Progressive Failure ◽  
Composite Panels ◽  
Loose Coupling ◽  
Progressive Failure Analysis ◽  
Stiffened Composite Panels ◽  
Coupling Approach

Secondary Buckling and Progressive Failure Analysis of Tailored Composite Panels in Thin-Walled Box-Shape Composite Beams under Bending and Torsion

2008 ◽  
Vol 41-42 ◽  
pp. 445-448
Author(s):  
Jun Liu ◽  
Bao Zong Huang ◽  
Ge Lan Li
Keyword(s):  
Carrying Capacity ◽  
Progressive Failure ◽  
Failure Process ◽  
Composite Beams ◽  
Composite Panel ◽  
Composite Panels ◽  
Postbuckling Behavior ◽  
Progressive Failure Analysis ◽  
Stiffened Composite Panels ◽  
Thin Walled

The postbuckling behavior and progressive failure of thin-walled box-shape composite beams (BSCBs) have been studied using a simplified composite panel model. It is shown that the carrying capacity of BSCBs under bending and torsion mainly depends on the postbuckling and progressive failure of panels. It is often necessary to identify and follow secondary buckling of tailored panels for correct estimation of carrying capacity. The failure process of stiffened composite panels is simulated in following path. The criterion of local failure in flange of stiffeners is applied to predict the ultimate failure of stiffened composite panels and thin-walled BSCBs. The comparison of the modeling and test shows that the prediction of BSCBs failure is satisfactory.

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