Impact and post impact response of laminated beams at low temperatures

Ibekwe, Samuel; Mensah, Patrick; Li, Guoqiang; Pang, Su‐Seng; Stubblefield, Michael A.

doi:10.1016/j.compstruct.2005.11.025

Cited by 74 publications

(40 citation statements)

References 8 publications

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“…Although these kinds of structures are not designed as armour, they could be subjected to high velocity impacts of low mass fragments, and this requires fuller knowledge of their response to impacts of this type. The impact damage could significantly diminish their strength although this may not be visually detectable [1]. This is one of the main reasons why the use of laminate type composite materials is limited [2].…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis of perforation of glass/polyester structures subjected to high-velocity impact

2010

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a b s t r a c t a r t i c l e i n f o Keywords:Composite materials Sandwich Multiplate structure Impact behaviour Aerospace materialsIn this paper the ballistic behaviour of several glass/polyester laminate structures was studied, evaluating the residual velocity of the projectile and the damage area. Three monolithic laminates of different thicknesses and two multiplate laminate structures were analyzed: one of a sandwich type with face sheets of glass/ polyester and a foam core, and another made with the same face sheet, which were separated by a distance equal to the thickness of the core. It was found that laminates of greater thickness show a larger damage area and a greater ballistic limit. The influence of the core on the ballistic limit of multiplate laminate structures is negligible but, nevertheless, the extension of the damage area in the back face sheet is increased.

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Section: Introductionmentioning

confidence: 99%

Experimental analysis of perforation of glass/polyester structures subjected to high-velocity impact

2010

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“…The impact and post-impact response of laminated beams at low temperatures was report by Ibekwe et al (2007). The results reported by the authors have contributed to the understanding of the damage mechanism in laminated composites.…”

Section: Introductionmentioning

confidence: 72%

Effect of Thermal Residual Stresses on Buckling and Post-Buckling Properties of Laminated Composites Perimetrally Reinforced

Sánchez-Cruz

Carrillo

Almeida

2016

Lat. Am. j. solids struct.

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Several mechanical properties can be affected by the occurrence of residual stresses due to curing, and their effects are more pronounced in laminated composites. The effect of the thermal residual stresses on the buckling and post-buckling properties of perimetrally reinforced laminated composites is experimentally characterized. Carbon/epoxy laminates were prepared using two different techniques. One group of laminates was prepared by co-curing the reinforcement at 177 °C. The second group of laminates was prepared by secondary bonding of the reinforcement to the laminate at room temperature (22°C). Topogrammetry equipment was utilized in order to determine the buckling and post-buckling properties of these two groups of laminates. A numerical model was achieved using commercial software for comparison with the experimental results. Suitable accuracy was observed when comparing experimental and numerical results. The co-cured laminates developed considerably higher critical load for buckling values than those obtained for laminates produced with secondary bonding at room temperature. The experimental and numerical results of this study demonstrate the importance of curing-induced thermal residual stresses on the mechanical behavior of laminate composites.

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“…The study of impact response of composite materials subjected to environmental conditioning other than ambient is more realistic and many pieces of research [6][7][8][9][10] have investigated the effect of environmental condition on impact damage behavior of composite materials. Karasek et al [6] have evaluated the influence of temperature and moisture on the impact resistance of an epoxy/graphite composite material and found that only at elevated temperatures has moisture had a significant effect on damage initiation energy.…”

Section: Introductionmentioning

confidence: 99%

The role of shape memory alloy on impact response of glass/epoxy laminates under low temperature

Kang

Kim

2007

J Mech Sci Technol

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The paper aims to evaluate the impact response of glass/epoxy laminates with embedded shape memory alloy (SMA) subject to low velocity impact at various temperatures. For the goal, the impact tests were performed by using an instrumented impact-testing machine at three temperatures: 293K, 263K and 233K for the baseline (laminates without SMA wires) and SMA laminates (laminates with embedded SMA wires). And the resultant damages were inspected through the scanning acoustic microscope (SAM). Also, based on the impact force history and the damage configuration, the impact resistance parameters were employed to evaluate damage resistance of laminates with embedded SMA wires. As a result, it was observed that the damage resistanceof glass/epoxy laminates is influenced by embedded SMA wires and embedding SMA wires into laminates does not compromisethe structure any differently to laminates without wires. In fact, it has been shown that under lower temperature, the SMA laminates have a little superior damage resistancecompared with the baseline laminates.

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Impact and post impact response of laminated beams at low temperatures

Cited by 74 publications

References 8 publications

Experimental analysis of perforation of glass/polyester structures subjected to high-velocity impact

Experimental analysis of perforation of glass/polyester structures subjected to high-velocity impact

Effect of Thermal Residual Stresses on Buckling and Post-Buckling Properties of Laminated Composites Perimetrally Reinforced

The role of shape memory alloy on impact response of glass/epoxy laminates under low temperature

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