Ballistic characterization of fiber elastomer metal laminate composites and effect of positioning of fiber reinforced elastomer

Mahesh, Vishwas; Mahesh, Vinyas; Harursampath, Dineshkumar

doi:10.1177/14644207211053963

Cited by 10 publications

(10 citation statements)

References 34 publications

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“…Layers in such constructions can be made of various materials [2][3][4] that are selected and arranged in a proper way to prevent perforation of the armor [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Numerical Simulation Techniques of Ballistic Ceramics under Projectile Impact Conditions

et al. 2021

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This article presents an analysis of the effectiveness of available numerical techniques in mapping the characteristic behavior of ballistic ceramics under projectile impact conditions. As part of the work, the ballistic tests were performed on the layered ceramic/steel composite armor and tested with the 7.62 × 39 mm, armor-piercing incendiary (API) BZ projectile. The experimental tests were then mapped using computer simulations. In numerical analyses, four different techniques were used to describe cubic ceramic tiles Al2O3 placed on the ARMOX 500T steel backing plate, i.e.,: the Finite Element Method without Erosion (FEM), Finite Element with erosion (FEM + Erosion), Smoothed Particles Hydrodynamics (SPH) and a hybrid method that converts finite elements to SPH particles after exceeding the defined failure criteria (FEM to SPH conversion). The effectiveness of the individual methods was compared in terms of quality (mapping of characteristic phenomena occurring during the penetration process), quantity (bulge height of the backing plate) and time needed to complete the calculations. On the basis of the results of the experiments and numerical simulations, it was noticed that the most accurate reproduction of the phenomenon of ballistic impact of AP projectiles on ceramic/steel composite armor can be obtained by using a hybrid method, incorporating the conversion of finite elements into SPH particles. This method should be used in cases where accuracy of the results is more important than the time required to complete the calculations. In other situations where the purpose of the calculation is not to determine, for example, the exact value of penetration depth but only to observe a certain trend, the FEM method with defined erosion criteria (variant 2), which is more than 10 times faster, can be successfully used.

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“…Layers in such constructions can be made of various materials [2][3][4] that are selected and arranged in a proper way to prevent perforation of the armor [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the search for optimal solutions is directed towards composite and multilayered structures. Layers in such constructions can be made of various materials [ 2 , 3 , 4 ] that are selected and arranged in a proper way to prevent perforation of the armor [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Numerical Simulation Techniques of Ballistic Ceramics under Projectile Impact Conditions

et al. 2021

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“…10 Several studies have investigated the energy absorption characteristics of rubber-based composites. Mahesh et al 11 evaluated the impact behavior of rubber-based fiber metal laminates and reported improved energy absorption compared due to inclusion of rubber. Furthermore, research on natural fiber composites, including kenaf, has demonstrated their potential for energy absorption applications.…”

Section: Introductionmentioning

confidence: 99%

Evaluating energy absorption of sustainable rubber crumb/kenaf composites through artificial neural network strategies for low‐velocity impact loads

Mahesh

Harursampath

2023

Polymer Composites

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This study presents an innovative approach utilizing Artificial Neural Network (ANN) strategies to evaluate the energy absorption capabilities of eco‐friendly rubber crumb/kenaf composites subjected to low‐velocity impact loads. The primary objectives of this research were to assess the energy absorption characteristics of these sustainable composites, understand their mechanical behavior under the impact, and provide valuable insights into their potential applications. To achieve these objectives, an experimental methodology was employed. Rubber crumb/kenaf composites with varying compositions were prepared, and low‐velocity impact tests were conducted using a drop‐weight impact testing apparatus to assess their energy absorption behavior and these parameters were used as inputs for training the ANN models. The weight percentage of waste tire rubber particle (WTRP), type of impactor and impact energies are considered as input data, whereas the absorbed energy is treated as the output. Through the advanced ANN strategies, accurate predictions of energy absorption performance were achieved for the rubber crumb/kenaf composites. The Levenberg–Marquardt optimisation algorithm with ten neurons and a tangent sigmoid activation function is used to train the ANN model. The trained ANN model is tested on an unseen dataset, different from the training data. It is shown to accurately predict the energy absorption characteristics of WTRP/KRE composites with a maximum error of 4.54%. The results revealed that the composite's energy absorption capabilities were influenced by the ratio of rubber crumb to kenaf, as well as the impact velocity. Additionally, the ANN models demonstrated excellent predictive capabilities, enabling efficient estimation of energy absorption behavior. The significance of these results lies in the potential applications of eco‐friendly rubber crumb/kenaf composites. By understanding their energy absorption characteristics, these composites can be effectively utilized in various industries. For instance, they could be employed in automotive parts manufacturing to enhance occupant safety during low‐velocity impact events. Furthermore, these composites can find applications in sports equipment, protective gear, and other impact‐prone products, contributing to sustainable and environmentally friendly materials. It is believed that by adopting the proposed ANN methodology, the experimentation costs and time can be significantly reduced without compromising the accuracy of the results. The obtained results provide valuable insights into the mechanical behavior of these sustainable composites and open avenues for their implementation in diverse industries where impact resistance is crucialHighlights Development of sustainable Rubber crumb/kenaf composites Application of advanced ANN based predictive assessment of the impact response Parametric study of impactor shape and height of impact is performed The damage mechanism contributing to energy absorption is micrographically studied

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“…12,21 Elastomer materials have been employed in shock absorbent sheets, dampers, and other technical applications. [22][23][24][25] Making use of elastomer components in composites is an innovative technique to enhance the impact behaviour and mitigate the failure. Experiments by Sarlin et al 26 studied the impact behaviour of hybrid composite laminate fabricated using elastomer, GFRRP and steel as the constituents as a function of impact energy and rubber thickness.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on low velocity impact response of carbon-fiber-reinforced polymer/ thermoplastic elastomer based fiber metal laminates with and without interleaving of elastomeric layer

Mahesh

2023

Journal of Thermoplastic Composite Materials

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This work compares the low velocity impact (LVI) behavior of conventional fiber metal laminate (FML) with hybrid fiber metal laminates (H-FML) that include an elastomer layer. The aim is to demonstrate the potential of the proposed composite comprising metal, elastomer, and carbon-fiber-reinforced polymer (CFRP) to meet the high demands of emerging products that require lightweight materials. Experimental methodologies and finite element (FE) analysis are used to assess the impact behavior of FML and H-FML. The study evaluates various internal damage processes and the distribution of energy of each ingredient and interaction during the LVI to understand the behavior of the laminates. The results show that the inclusion of elastomer leads to a wider energy distribution and greater participation of the proposed H-FML composites in bearing the load rather than focusing only on the impact area. The materials are used more efficiently in energy absorption since a more extensive energy distribution inside the hybrid laminate takes place. The amount and proportion of energy absorption by each component in laminates are influenced by introduction of the elastomer. The study highlights the potential of using innovative hybrid laminates for energy absorption, and the placement of the elastomer in the laminates affects the extent of energy absorption by each component.

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Ballistic characterization of fiber elastomer metal laminate composites and effect of positioning of fiber reinforced elastomer

Cited by 10 publications

References 34 publications

Comparison of Numerical Simulation Techniques of Ballistic Ceramics under Projectile Impact Conditions

Comparison of Numerical Simulation Techniques of Ballistic Ceramics under Projectile Impact Conditions

Evaluating energy absorption of sustainable rubber crumb/kenaf composites through artificial neural network strategies for low‐velocity impact loads

Comparative study on low velocity impact response of carbon-fiber-reinforced polymer/ thermoplastic elastomer based fiber metal laminates with and without interleaving of elastomeric layer

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