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AD-A233955 Buckling and Postbuckling Analysis of Fiber-Composite Laminate Plates under Biaxial Compression

AD-A233955 Buckling and Postbuckling Analysis of Fiber-Composite Laminate Plates under Biaxial Compression
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  • 213 Downloads
  • 1.95 MB File Size
  • 1 File Count
  • May 11, 2020 Create Date
  • May 11, 2020 Last Updated
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Developments of advanced fiber-composite laminates as viable structural components have introduced new complexities in design. Among these concerns is the load-bearing capacity of these structures under multiaxial compressive loading. In this study deformations and transverse shear stresses at buckling and in the postbuckling range are analyzed to study the compressive failure behavior of thin- and thick-section composite laminates. The general formulation for buckling and postbuckling is based on Newton/Raphson and Riks algorithms used in conjunction with a nonlinear large deformation finite-element method. In order to assess the effect of transverse shear on the buckling and postbuckling behavior a deformable shear plate formulation is used. The global load-deformation response and the transverse shear development in the composite laminates during buckling and postbuckling are studied. Potential changes in buckling mode in postbuckling are especially considered. Effects of thickness, imperfection sensitivity, stress-biaxiality ratio, boundary conditions and lamination layup on global buckling and postbuckling response and on transverse shear development are also analyzed.

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AD-A233955 Buckling and Postbuckling Analysis of Fiber-Composite Laminate Plates under Biaxial Compression

AD-A233955 Buckling and Postbuckling Analysis of Fiber-Composite Laminate Plates under Biaxial Compression
  • Version
  • 213 Downloads
  • 1.95 MB File Size
  • 1 File Count
  • May 11, 2020 Create Date
  • May 11, 2020 Last Updated
Scroll for Details

Developments of advanced fiber-composite laminates as viable structural components have introduced new complexities in design. Among these concerns is the load-bearing capacity of these structures under multiaxial compressive loading. In this study deformations and transverse shear stresses at buckling and in the postbuckling range are analyzed to study the compressive failure behavior of thin- and thick-section composite laminates. The general formulation for buckling and postbuckling is based on Newton/Raphson and Riks algorithms used in conjunction with a nonlinear large deformation finite-element method. In order to assess the effect of transverse shear on the buckling and postbuckling behavior a deformable shear plate formulation is used. The global load-deformation response and the transverse shear development in the composite laminates during buckling and postbuckling are studied. Potential changes in buckling mode in postbuckling are especially considered. Effects of thickness, imperfection sensitivity, stress-biaxiality ratio, boundary conditions and lamination layup on global buckling and postbuckling response and on transverse shear development are also analyzed.

FileAction
AD-A233955 Buckling and Postbuckling Analysis of Fiber-Composite Laminate Plates under Biaxial Compression.pdfDownload 
17,005 Documents in our Technical Library
2475550 Total Downloads

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Newest Additions

NASA-RP-1060 Subsonic Aircraft: Evolution and the Matching of Size to Performance
NASA-RP-1060 Subsonic Aircraft: Evolution and the Matching of Size to Performance
AA-CP-20212-001
AA-CP-20212-001
ADPO10769 Occurrence of Corrosion in Airframes
The purpose of this lecture is to provide an overview ...
MIL-STD-1759 Rivets and Rivet Type Fasteners Preferred for Design
The purpose of this book form standard is to provide ...
MIL-STD-810G Environmental Engineering Considerations and Laboratory Tests
This standard contains materiel acquisition program planning and engineering direction ...