Impact response of integrated hollow core sandwich composite panels

Vaidya, Uday; Hosur, Mahesh; Earl, David A.; Jeelani, Shaik

doi:10.1016/s1359-835x(00)00025-7

Cited by 87 publications

(62 citation statements)

References 6 publications

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“…It can be seen that multiple load drops through the loading process, which originates at starting point of 700 N, this is because when the impactor contacts with the samples, the core fibers just below the point of impact are seen to exhibit micro-buckling on a filament level, these are represented as small magnitude [12]. It can also be found the slope of load-time curves increases with increasing impact energy.…”

Section: Mechanical Propertiesmentioning

confidence: 91%

“…Many other studies [6][7][8][9][10][11] also studied static compressive, shear and bending behavior of 3D integrated woven spacer composites with different core heights and showed the face sheets have a significant impact. For dynamic loading, Vaidya et al [12,13] studied low-velocity impact of a series of functionality sandwich composites, and proved that wax filling, wire routing and polycarbonate-sheet facing can delay and suppress the damage of hollow core. Shyr et al [14] investigated the low velocity impact responses and damage characteristics of a hybrid structure which made by laying a sandwich structure into a multi-axial warp knit blankets.…”

Section: Introductionmentioning

confidence: 99%

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Static and dynamic mechanical behavior of 3D integrated woven spacer composites with thickened face sheets

Jiang

et al. 2016

Fibers Polym

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3D integrated woven spacer composites with thickened face sheets are fabricated successfully. Static compression and impact behavior are analyzed to evaluate the effect of thickened face sheets. The results show that thickened face sheet is an important influence parameter, warp compression and impact properties have been improved significantly than those of composite without thickened face sheets. Moreover, the damage and failure mechanism is significantly different. The main failure mode under flat compression is an abrupt rigid breakage of core fiber bundles. However, the thickened face sheets reduce the shear stress that transfer to core fibers. For warp compression, there is no face sheets fracture or dislocation, the local shear fracture occurs on the thickened face sheets. In regard to low-velocity impact, the strength of thickened face sheets dominates the failure, the damage is mainly manifested as the penetration of the top and bottom face sheets, matrix cracking, interface debonding, micro-buckling, as well as tearing and breakage of core fibers.

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Section: Mechanical Propertiesmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Static and dynamic mechanical behavior of 3D integrated woven spacer composites with thickened face sheets

Jiang

et al. 2016

Fibers Polym

View full text Add to dashboard Cite

show abstract

“…Vaidya et al [12,13] studied low-velocity impact of a series of functionality sandwich composites, and proved that wax filling, wire routing and polycarbonate-sheet facing can delay and suppress the damage of the hollow core. Shyr et al [14] investigated the low velocity impact responses and damage characteristics of hybrid structure which was made by laying a sandwich structure into a multiaxial warp knit blanket.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the charpy impact failure of 3D integrated woven spacer composite at room and liquid nitrogen temperature

Zhao

Jiang

et al. 2015

Fibers Polym

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The charpy impact experiments on the 3D integrated woven spacer composites with six types of core heights are performed at room and liquid nitrogen temperatures (as low as -196 o C). Macro-fracture morphology and SEM micrographs are examined to understand the deformation and failure mechanism. The results show that the impact energy increase with the increase of the core height at both room and liquid nitrogen temperatures. Meanwhile, the impact properties at liquid nitrogen temperature have been improved significantly than that at room temperature. Moreover, at room temperature, the penetration fracture of the face sheets, the tearing and pulling out of the core fibers as well as the cracking of the matrix is the main damage and failure patterns. However, at liquid nitrogen temperature, the matrix crushing dominates the failure. Less fibers fracture and brittle fracture feature becomes more obvious. In addition, with the increase of the core heights, the damage of composites has been reduced significantly at room and liquid nitrogen temperatures.

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“…The skin-core interface is a potential weakness for delamination under localized impact loading, and causes relatively poor impact resistance [1][2][3]18,19]. Impact response of a hollow core sandwich composite panel, which is a three-dimensional fabric, consisting of two bi-directional woven E-glass fabric surfaces, was studied.…”

Section: Introductionmentioning

confidence: 99%

“…Impact response of a hollow core sandwich composite panel, which is a three-dimensional fabric, consisting of two bi-directional woven E-glass fabric surfaces, was studied. Eric et al reported that the first load drop damage of the glass pile core material was associated with core failure [1,18]. Under low-velocity impact, the threshold energy to cause core failure was found to be about 5-15 J for the 6 mm core thickness.…”

Section: Introductionmentioning

confidence: 99%

Low velocity impact responses of hollow core sandwich laminate and interply hybrid laminate

Shyr

Pan

2004

Composite Structures

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Impact response of integrated hollow core sandwich composite panels

Cited by 87 publications

References 6 publications

Static and dynamic mechanical behavior of 3D integrated woven spacer composites with thickened face sheets

Static and dynamic mechanical behavior of 3D integrated woven spacer composites with thickened face sheets

Experimental study on the charpy impact failure of 3D integrated woven spacer composite at room and liquid nitrogen temperature

Low velocity impact responses of hollow core sandwich laminate and interply hybrid laminate

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