In-Plane Shear Characterization of Composite GFRP-Foam Sandwich Panels

Oluwabusi, Oludare E.; Toubia, Elias A.

doi:10.1061/(asce)cc.1943-5614.0000959

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…Since the loading conditions were the same, the failure mode of the honeycomb sandwich panel was identical to that of the foam sandwich panels. 29 Due to the larger bonding area between the foam core and the skins, the extent of delamination was smaller than that in honeycomb sandwich panels.…”

Section: Unrepaired Specimenmentioning

confidence: 99%

“…Picture frame test is a kind of experimental tests for characterizing the material behavior of textile composites. In recent years, the frame test has been widely used to measure the shear properties of carbon/glass fiber composite laminates and plain weave fabrics 27–32 . DIC system is a good choice for measuring the strain of sandwich panels.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the frame test has been widely used to measure the shear properties of carbon/glass fiber composite laminates and plain weave fabrics. [27][28][29][30][31][32] DIC system is a good choice for measuring the strain of sandwich panels. Macro-scale DIC is used in the picture frame test and employed to study the distinct shear failure patterns of sandwich core materials.…”

mentioning

confidence: 99%

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Shear performance assessment of repaired honeycomb sandwich composite panels: An experimental and numerical study

et al. 2023

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This article presents an effective test method for evaluating the shear performance of repaired honeycomb sandwich panels consisting of glass fiber/epoxy matrix skin and Nomex honeycomb core. Addressing the insufficient research on the shear performance of honeycomb sandwich panels after repair in existing literature, this study conducted mechanical performance tests on the honeycomb sandwich panels before and after repair using the picture frame test method. Surface strain measurements are obtained using digital image correlation (DIC) techniques, and load–displacement and shear stress–strain curves are generated from the experimental results. The study concludes that the repair method utilized in this investigation is effective in restoring the mechanical properties of the sandwich panels. In addition, finite element models of the honeycomb sandwich panels before and after repair are established, and a comparative analysis is conducted between the experimental and simulation results. The study examines the shear modulus, ultimate load, and failure mode of the repaired and unrepaired specimens. The findings verify the feasibility of the picture frame test method for evaluating the shear performance of honeycomb sandwich panels. This study provides valuable insights into the design of shear performance repair for honeycomb sandwich panels and offers theoretical support for material recycling.

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Section: Unrepaired Specimenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Shear performance assessment of repaired honeycomb sandwich composite panels: An experimental and numerical study

et al. 2023

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“…In the case of shear, the deformable square bench applied to sandwich panel is proposed by ASTM standard D8067. The method is used in [21] to assess the core inplane shear load contribution to failure modes and especially global buckling. The standard is reliable to obtain the in-plane shear properties of sandwich structures with a special focus on proper hinge mechanisms around the four corners.…”

Section: Introductionmentioning

confidence: 99%