Abstract
The in-plane shear buckling behavior of a composite hat-stiffened panel is studied by the combination of experimental and numerical analysis. The buckling morphology changes of the hat-stiffened panel during in-plane shearing were monitored and measured by using the fringe projection profilometry and 3D digital image correlation. The in-plane shear buckling load, buckling modes, and failure load of the hat-stiffened composite panel were predicted by using the finite element numerical simulation. The buckling evolution process and failure mechanism of the composite hat-stiffened panel under in-plane shear can be effectively revealed by numerical and experimental investigation.
Highlights
The stiffened composite panel is one of the most widely used structural forms that can reflect the design concepts of high strength and light weight
The in-plane shear buckling load, buckling modes, and failure load of the hat-stiffened composite panel were predicted by using the finite element numerical simulation
The buckling and post-buckling behaviors of a composite hat-stiffened panel under inplane shear were studied by the in-plane shear test and finite element (FE) numerical analysis
Summary
The stiffened composite panel is one of the most widely used structural forms that can reflect the design concepts of high strength and light weight. To study the failure behavior of the composite stiffened panels, researchers carried out a large number of numerical and experimental investigations. Lanzi [3] studied the structural compressive behavior of composite stiffened flat panels by numerical and experimental investigation. Kong et al [5] studied the detailed compressive buckling behavior and failure modes of stiffened panels by the combination of experimental and numerical investigation. The buckling and post-buckling behaviors of a composite hat-stiffened panel under inplane shear were studied by the in-plane shear test and finite element (FE) numerical analysis.
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