Finite element, large-deflection random response of thermally buckled beams

AIAA Journal ◽  
1990 ◽  
Vol 28 (12) ◽  
pp. 2125-2131 ◽  
Author(s):  
James Locke ◽  
Chuh Mei
Keyword(s):  
Finite Element ◽  
Large Deflection ◽  
Random Response ◽  
Buckled Beams

Elasto-Plastic Large Deflection Analysis of a Copper Film

1992 ◽  
Vol 114 (2) ◽  
pp. 221-225
Author(s):  
J. H. Lau
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Plastic Strain ◽  
Mechanical Behavior ◽  
Effective Stress ◽  
Large Deflection ◽  
Applied Pressure ◽  
Copper Film ◽  
Engineering Practice ◽  
Deflection Analysis

The ductility of a copper film has been determined by an elastoplastic large deflection finite element method. The effective stress and incremental plastic strain and pressure-deflection curves of the copper film have also been provided for a better understanding of its mechanical behavior. Furthermore, for engineering practice convenience, the ductility and effective stress of the copper film have been plotted as functions of measurable variables, i.e., applied pressure and deflection at the center of the bulge.

LOAD-CARRYING CAPACITIES FOR CIRCULAR METAL FOAM CORE SANDWICH PANELS AT LARGE DEFLECTION

2008 ◽  
Vol 22 (31n32) ◽  
pp. 6218-6223 ◽  
Author(s):  
W. HOU ◽  
Z. WANG ◽  
L. ZHAO ◽  
G. LU ◽  
D. SHU
Keyword(s):  
Finite Element ◽  
Velocity Field ◽  
Large Deflection ◽  
Metal Foam ◽  
Yield Criterion ◽  
Metallic Foam ◽  
Foam Core ◽  
Element Simulation ◽  
Load Carrying ◽  
Good Agreement

This paper is concerned with the load-carrying capacities of a circular sandwich panel with metallic foam core subjected to quasi-static pressure loading. The analysis is performed with a newly developed yield criterion for the sandwich cross section. The large deflection response is estimated by assuming a velocity field, which is defined based on the initial velocity field and the boundary condition. A finite element simulation has been performed to validate the analytical solution for the simply supported cases. Good agreement is found between the theoretical and finite element predictions for the load-deflection response.

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