Compressive Strength of Composite Sandwich Panels After Impact Damage: An Experimental and Analytical Study

Kassapoglou, Christos; Jonas, P G; Abbott, R. T.

doi:10.1520/ctr10131j

Cited by 45 publications

(2 citation statements)

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“…They analyzed the effect of single isolated defects of different sizes and the distance between two defects on the elastoplasticity of structures. Some researchers have found that impact damage may reduce the compressive strength of composite sandwich structures by 50% [11]. However, according to the published literature, there are few studies on titanium honeycomb sandwich structures containing damage defects, especially penetrating damage.…”

Section: Introductionmentioning

confidence: 99%

Structural behaviors of edge-closed titanium honeycomb sandwich panels with a repaired penetrating damage under a unidirectional tensile load

Liu,

Zhu

et al. 2023

AETR

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This paper deals with penetrating damage experimental and numerical investigation on edge-closed titanium honeycomb sandwich panels under uniaxial tension. Three damage state specimens were designed and manufactured for tests including intact, prefabricated penetrating damage, and repaired. The test results show the diameter of penetrating hole has a great impact on failure mode and load, and the failure mode of repaired specimens is consistent with the intact. A parametric numerical methodology containing structural damage details was established. Numerical analysis successfully simulated the failure process of all damage states, which was consistent with the experimental observations. Scarf and inlay repair technique can be used to restore the mechanical properties of edge-closed titanium honeycomb sandwich panels.

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Section: Introductionmentioning

confidence: 99%

Structural behaviors of edge-closed titanium honeycomb sandwich panels with a repaired penetrating damage under a unidirectional tensile load

Liu,

Zhu

et al. 2023

AETR

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“…Numerous studies report that low-velocity impact or low-energy impact events, such as tool-drop, runway stones, hailstone and tire blowout debris, may produce an indentation that is invisible or barely visible. These impact events may cause significant internal damage in the structure, including matrix cracking, fiber breakage, facesheet debonding and delamination, and core crushing, etc [1,2], which may lead to a substantial decrease of the load bearing capability of the structure [3].…”

Section: Introductionmentioning

confidence: 99%

Study on the Residual Compressive Strength of a Composite Sandwich Panel with Foam Core after Low Velocity Impact

Xie

Tian

Jian

et al. 2012

AMR

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The residual compressive strength of a foam core sandwich panel after low-velocity impact was studied by using experimental and analytical methods. The test specimens were compressed uniaxially after they were subjected to a low-velocity-impact. From the observation in the test, one can conclude that the subsequent core crushing around the impact region is the major failure mode in the sandwich structure. A failure criterion named Damage Propagation Criterion was proposed to predict the residual compressive load bearing capability of the low-velocity impacted composite sandwich panel. The characteristic value used in this failure criterion can be calculated by an analytical model developed or by conducting the Sandwich Compression after Impact test.

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Composite Structural Components and Mathematical Formulation

Kassapoglou

2010

Design and Analysis of Composite Structures

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Compressive Strength of Composite Sandwich Panels After Impact Damage: An Experimental and Analytical Study

Cited by 45 publications

References 1 publication

Structural behaviors of edge-closed titanium honeycomb sandwich panels with a repaired penetrating damage under a unidirectional tensile load

Structural behaviors of edge-closed titanium honeycomb sandwich panels with a repaired penetrating damage under a unidirectional tensile load

Study on the Residual Compressive Strength of a Composite Sandwich Panel with Foam Core after Low Velocity Impact

Composite Structural Components and Mathematical Formulation

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