Ballistic impact behavior of hybrid composites

Pandya, Kedar S.; Pothnis, Jayaram R.; Ravikumar, G.; Naik, N.K.

doi:10.1016/j.matdes.2012.07.044

Cited by 155 publications

(75 citation statements)

References 35 publications

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“…V 50 is defined as the average of equal number of highest partial penetration velocities and lowest complete penetration velocities of a specific projectile and target combination, which occur within a specified velocity range [10]. The ballistic limit velocity was determined from the impact velocity of the projectiles with 50% possibility of complete penetration of the samples.…”

Section: Resultsmentioning

confidence: 99%

“…The fibres that are most widely used are glass [2][3][4], Kevlar [5,6], Twaron [7], UHMWPE and carbon [8]. Studies have also been conducted on hybrid ballistic composites, such as by glass/carbon [9,10], Kevlar/carbon/glass [11], S2 glass-IM7 graphite [12], poly(methyl methacrylate) /polycarbonate [13], and on carbon, polyethylene and PBO [14].…”

Section: Introductionmentioning

confidence: 99%

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Measurement of ballistic impact properties of woven kenaf–aramid hybrid composites

et al. 2016

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measurement of ballistic impact properties of woven kenaf–aramid hybrid composites

et al. 2016

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“…It is postulated that delamination only starts at an advanced stage of the loading, resulting in a small rhombic region of delamination just before the specimen is perforated during high-velocity penetration. When the impact velocity is increased, the stress wave propagation occurs, causing randomly broken fibres (Lin and Fatt 2006;Sultan et al 2012;Pandya et al 2013). Generally, the rupture of aramid and kenaf fibres as well as matrix fracture were major failure modes in the high-impact tests.…”

Section: Damage Mechanismsmentioning

confidence: 99%

Ballistic Impact Resistance of Plain Woven Kenaf/Aramid Reinforced Polyvinyl Butyral Laminated Hybrid Composite

Salman¹,

Leman²,

Sultan³

et al. 2016

BioResources

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Traditionally, the helmet shell has been used to provide protection against head injuries and fatalities caused by ballistic threats. In this study, because of the high cost of aramid fibres and the necessity for environmentally friendly alternatives, a portion of aramid was replaced with plain woven kenaf fibre, with different arrangements and thicknesses, without jeopardising the requirements demanded by U.S. Army helmet specifications. Furthermore, novel helmets were produced and tested to reduce the dependency on the ballistic resistance components. Their use could lead to helmets that are less costly and more easily available than conventional helmet armour. The hybrid materials subjected to ballistic tests were composed of 19 layers and were fabricated by the hot press technique using different numbers and configurations of plain woven kenaf and aramid layers. In the case of ballistic performance tests, a positive effect was found for the hybridisation of kenaf and aramid laminated composites.

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“…3D textile composites (3DTCs) have demonstrated enhanced mechanical performance and tailorable properties, achieved by optimizing the textile architecture and the types of constituent fibers (Luo et al, 2007;Baucom and Zikry, 2003;Mouritz et al, 1999;Hufenbach et al, 2009;Pandya et al, 2013). Early studies on this class of materials are primarily focused on the prediction of composite homogenized properties based upon textile architecture using simplified analytical methods (Cox et al, 1992;Sankar and Marrey, 1997;Huang, 2000;Quek et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Progressive damage and failure response of hybrid 3D textile composites subjected to flexural loading, part II: Mechanics based multiscale computational modeling of progressive damage and failure

Zhang

Waas

Yen

2015

International Journal of Solids and Structures

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a b s t r a c tA mechanics based multiscale computational model is presented to predict the deformation, damage and failure response of hybrid 3D textile composites (H3DTCs) subjected to three-point bending. The geometry of the textile architecture was incorporated in a mesoscale finite element (FE) model, while the H3DTC was homogenized at the macroscale. The mesoscale model is a collection of repeat unit cells (RUCs) that are composed of different types of fiber tows embedded in a surrounding matrix. Matrix microdamage was modeled by a (pre-peak) nonlinear stress versus strain response, using a modified J 2 deformation theory of plasticity incorporating a secant-modulus approach. Fiber tow pre-peak nonlinear response was computed using a novel, two-scale model, in which the subscale micromechanical analysis was carried out in closed-form based upon a unit cell of a fiber-matrix concentric cylinder. Consequently, the influence of matrix microdamage developing at the microscale manifests as the progressive degradation of fiber tow stiffness at the mesoscale. The smeared crack approach (SCA) was employed to model the post-peak softening of the constituents due to failure, including matrix macro-cracking, tow kinking, and tow breaking. This method offers a mesh objective result by relating the post-peak softening response to a traction-separation law that is associated with each failure mechanism through a characteristic length. Thus, the total energy release rate during failure in a continuum element is related to the fracture toughness of the material.The load-deflection responses, along with the progressive damage and failure events, including fiber tow kinking and rupture, are successfully predicted through the proposed computational model. In addition, the textile architecture-dependent effect, observed in the asymmetric H3DTCs, is also captured, demonstrating the predictive capability of the proposed modeling scheme. Since all the inputs are from the constituent level, the model is useful in understanding how the macroscopic response of H3DTCs is influenced by textile architecture and constituent properties. The experimental studies are presented in Part I of this two-part sequence Zhang et al., in press.

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Ballistic impact behavior of hybrid composites

Cited by 155 publications

References 35 publications

Measurement of ballistic impact properties of woven kenaf–aramid hybrid composites

Measurement of ballistic impact properties of woven kenaf–aramid hybrid composites

Ballistic Impact Resistance of Plain Woven Kenaf/Aramid Reinforced Polyvinyl Butyral Laminated Hybrid Composite

Progressive damage and failure response of hybrid 3D textile composites subjected to flexural loading, part II: Mechanics based multiscale computational modeling of progressive damage and failure

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