Buckling of Composite Plates with Local Damage and Thermal Residual Stresses

AIAA Journal ◽  
2002 ◽  
Vol 40 (2) ◽  
pp. 340-345 ◽  
Author(s):  
Sergio Frascino Muller de Almeida ◽  
Jorn S. Hansen
Keyword(s):  
Residual Stresses ◽  
Composite Plates ◽  
Local Damage ◽  
Thermal Residual Stresses

Buckling of composite plates with local damage and thermal residual stresses

AIAA Journal ◽  
2002 ◽  
Vol 40 ◽  
pp. 340-345 ◽  
Author(s):  
S. F. M. de Almeida ◽  
J. S. Hansen
Keyword(s):  
Residual Stresses ◽  
Composite Plates ◽  
Local Damage ◽  
Thermal Residual Stresses

Enhanced Elastic Buckling Loads of Composite Plates With Tailored Thermal Residual Stresses

1997 ◽  
Vol 64 (4) ◽  
pp. 772-780 ◽  
Author(s):  
S. F. Mu¨ller de Almeida ◽  
J. S. Hansen
Keyword(s):  
Residual Stresses ◽  
Plate Theory ◽  
Design Procedure ◽  
Composite Plates ◽  
Buckling Load ◽  
Mindlin Plate ◽  
Buckling Loads ◽  
Thermal Residual Stresses ◽  
Element Technique ◽  
Lagrange Element

Thermal residual stresses introduced during the manufacturing process and their effect on the buckling load of stringer reinforced composite plates is investigated. The principal idea is to include stiffeners on the perimeter of the plate and thereby, during manufacture, induce a favorable thermal residual-stress state in the structure; these stresses arise by considering the difference in thermal expansion coefficients and elastic properties of the plate and the stiffeners. In this manner, it is shown that thermal residual stresses can be tailored to significantly enhance the performance of the structure. The analysis is taken within the context of an enhanced Reissner-Mindlin plate theory and the finite element technique is used to analyze the problem. A 16 node bi-cubic Lagrange element is implemented in a FORTRAN code to determine the buckling load of the composite plate in the presence of thermal residual stresses. Three different plate-stiffener geometries are used as illustrations. The analyses indicate that buckling loads can be significantly increased by properly tailoring the thermal residual stresses. Therefore it may be concluded that an evaluation of these stresses and a judicious analysis of their effects must be included in the design procedure for this class of composite structure.

Thermal residual stresses in FSS layer-embedded composite plates in co-cure bonding

2017 ◽  
Vol 26 (6) ◽  
pp. 511-536 ◽  
Author(s):  
K.Y. Kim ◽  
H.J. Chun ◽  
K.T. Kang ◽  
I.P. Hong ◽  
K.W. Lee ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Composite Plates ◽  
Thermal Residual Stresses
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