A constitutive equation for ceramic materials used in lightweight armors

Abstract

a b s t r a c tA constitutive model to simulate the behavior of ceramic materials under impact loading is proposed in order to achieve a better representation of the damage process due to the material fragmentation. To integrate the proposed constitutive equations, a semi implicit algorithm (implicit for the stresses and explicit for the damage variable) has been developed, leading to the generalized expressions of the clas sical return mapping algorithm. The model was implemented in a commercial finite element code and its performance was demonstrated by comparing its predictions with experimental results obtained by other authors.

Numerical and experimental investigation of the ballistic performance of the armor structure with in-layer deflector against bullets

“…Panowicz et al (2013) numerically investigated the mine protection performance of metal sheet designs with deflector geometry for placement on the underside of armored vehicles. In their study, Fernández et al (2011) numerically investigated a ceramic armor model in order to minimize the material fracture damage caused by bullet impacts and to lighten the weight. Roth et al (2020) investigated the usability of Al7020 as a light armor material experimentally and numerically with the temperature-dependent perforation parameter.…”

Ballistic Performance Analysis of Ultra High Molecular Weight Polyethylene (UHMWPE) Composite

“…1 Aeronautical University of Science and Technology, Tehran, Iran [1] Experimental and numerical simulation based assessment of kevlar composite … [2] Effect of fibre volume fraction on energy absorption capabilities … [3] Simulation of lowvelocity impact damage on composite laminates [4] Investigation and optimization of protective properties of metal multi-layered shields… [5] New results on ballistic performance of multi-layered metal shields [6] The impact resistance of composite materials-a review. Composites [7] A constitutive equation for ceramic materials used in lightweight armors [8] A constitutive equation for ceramic materials used in lightweight armors [9] On improving ballistic limit of bi-layer ceramic-metal armor [10] Numerical simulation of ceramic composite armor subjected to ballistic impact [11] Investigation on the ballistic behavior of mosaic SiC/UHMWPE … [12] Design and ballistic penetration of the ceramic composite armor [13] The out-of-plane compressive response of Dyneema® composites [14] The effect of target thickness on the ballistic performance of ultra high molecular weight polyethylene composite [15] The ballistic performance of thick ultra high molecular weight polyethylene composite [16] High performance fabrics in body protective systems [17] A comparative study on low-velocity impact response of fabric composite laminate [18] Investigations on the spall and delamination behavior of UHMWPE composites [19] Structure induced effectiveness of shear thickening fluid for modulating impact resistance of UHMWPE fabrics [20] Strategic positioning of carbon fiber layers in an UHMwPE … [21] Effect of moisture on high strain rate performance of UHMWPE … [22] Investigation of failure modes and influence on ballistic performance of Ultra-High Molecular Weight Polyethylene … [23] Low velocity impact behavior and simulation of parametric effect analysis … [24] Numerical investigation of energy absorption mechanisms … [25] A general theory of strength for anisotropic materials [26]…”