The oblique impact response of composite sandwich plates

Iváñez, I.; Moure, M.M.; García-Castillo, Shirley K.; Sánchez-Sáez, S.

doi:10.1016/j.compstruct.2015.08.035

Cited by 65 publications

(29 citation statements)

References 19 publications

(4 reference statements)

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“…Figure 19 shows the C-scan images for different oblique angles and impact energies. The failure profile on the front side was different among normal and oblique impact [296]. Under normal impact, fiber failure induced by shearing was noticed on the front side.…”

Section: Angle Of Obliquitymentioning

confidence: 91%

Parameters influencing the impact response of fiber-reinforced polymer matrix composite materials: A critical review

Andrew

Srinivasan

Arockiarajan

et al. 2019

Composite Structures

198

105

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Section: Angle Of Obliquitymentioning

confidence: 91%

Parameters influencing the impact response of fiber-reinforced polymer matrix composite materials: A critical review

Andrew

Srinivasan

Arockiarajan

et al. 2019

Composite Structures

198

105

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“…Generally, for a better representation of the damage scenario, the composite skin and the core have to be modeled separately. This is all the more true when complex loading, like oblique impacts, are studied [9,10,11]. For the modeling of the woven composite skin, the representation scale varies from the homogenized skin to the representation of the bundles of fibers with solid elements [12,13,14,15,16,17,18,19].…”

Section: Introductionmentioning

confidence: 99%

Impact damage prediction in thin woven composite laminates – Part II: Application to normal and oblique impacts on sandwich structure

Pascal

Rogani

Mahmoud

et al. 2018

Composite Structures

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This article concerns the Finite Element modeling of impacts on composite sandwich structures. Low velocity normal impacts and medium velocity oblique impacts on sandwich panels made with woven composite skins and a polyurethane foam core are investigated. The ply orientations and materials of the woven composite laminate skin are varied. The woven skin is modeled using a semi-continuous approach, described in the first part of this two parts article, in which the behavior of the bundles of fibers and that of the resin are disconnected. The foam core is represented with solid elements with a continuous material law. This modeling strategy provides results accurate enough to represent the damage scenario observed experimentally with an acceptable calculation time. The numerical results are used to analyze the damage mechanisms leading to the final fracture shape.

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“…It was also shown that the damage state and the impact response were independent of core thickness, which was tested with two different core thicknesses; 10 and 25 mm. The oblique impact response of sandwich composite having carbon/epoxy face sheets and Nomex honeycomb core was investigated in Iva´n˜ez et al [4]. It was found that the peak load and energy absorption increased with increasing impact energy and impact angle, while the contact time remained almost constant.…”

Section: Introductionmentioning

confidence: 99%

Residual bending behaviour of sandwich composites after impact

Baran

Weijermars

2018

Jnl of Sandwich Structures & Materials

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This work investigates the residual mechanical behaviour of composite sandwich panels in bending after impact loading conditions. The sandwich panels were made of an epoxy/glass face sheet with three different core materials: styrene acrylonitrile foam, polyethylene terephthalate foam and Balsa wood. A three-point bending test was performed in order to determine the reference stiffness. A low-velocity impact test and thereafter the three-point bending test were performed with the same specimens. The failure modes during bending tests were captured using a high-speed camera. It was found that multiple shear cracks with progressive failure were present in the core of styrene acrylonitrile and polyethylene terephthalate panels in bending after impact tests, whereas single shear crack with sudden failure was the case for Balsa panels. The initial bending stiffness decreased approximately 30.5, 35.2 and 55.6% for Balsa, styrene acrylonitrile and polyethylene terephthalate panels, respectively, in bending after impact tests due to the influence of the pre-damage from the low-velocity impact tests. The reduction in collapse force was also quantified for Balsa, styrene acrylonitrile and polyethylene terephthalate panels as 22.8, 4.9 and 22.1%, respectively.

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The oblique impact response of composite sandwich plates

Abstract: This is a postprint version of the following published document:Iváñez, I.; Moure, M. M.; García-Castillo, S. K.; Sánchez-Sáez, S. (2015). The oblique impact response of composite sandwich plates.

Cited by 65 publications

References 19 publications

Parameters influencing the impact response of fiber-reinforced polymer matrix composite materials: A critical review

Parameters influencing the impact response of fiber-reinforced polymer matrix composite materials: A critical review

Impact damage prediction in thin woven composite laminates – Part II: Application to normal and oblique impacts on sandwich structure

Residual bending behaviour of sandwich composites after impact

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