Influence of honeycomb core height on the blast mitigation performance of sandwich panel

Patel, Murlidhar; Patel, Shivdayal

doi:10.1016/j.matpr.2022.09.530

Cited by 8 publications

(7 citation statements)

References 31 publications

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“…The J-C model has been used in a variety of engineering applications due to its very good accuracy of results. 17 However, this material model is the best choice for the present work. Equation (3) provides the fundamental equation for this model 19,20 : Here, flow stress, equivalent plastic strain rate, equivalent plastic strain, and current temperature are represented by σ d, ε ˙ p, ε p, and T , respectively.…”

Section: Numerical Modelingmentioning

confidence: 99%

“…The CONWEP has been used extensively in military applications, such as the design of protective structures and the analysis of blast effects on personnel and equipment. 17 uses a variety of input parameters, such as the size and type of the weapon, the distance from the detonation, and the type of terrain, to estimate the peak overpressure and impulse levels generated by the explosion. 3 Geometry modeling, interaction, loading, and meshing…”

Section: Air-blast Loadingmentioning

confidence: 99%

Section: Materials Properties and Modelingmentioning

confidence: 99%

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Design and analysis of lightweight stiffened honeycomb metallic sandwich panels under high-intensity air blast

Patel

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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An explosive attack on a vehicle can cause catastrophic damage, injury, and loss of life. Experimentally evaluating the blast performance is very costly, hazardous, and environmentally polluting. The numerical investigation of blast behavior is a good alternative. However, this numerical study showed an effort toward improving metallic sandwich panels’ ability to withstand explosion loads of 1–3 kg of TNT at a distance of 100 mm. The blast mitigation of square and circular tube honeycomb cores was compared. The foam and circular tube stiffeners were used to optimize the honeycomb sandwiches’ blast mitigation characteristics. Radial face deflection, face center deflection, core crushing behavior, internal energy, and plastic dissipation energy parameters were used for the characterization of blast behavior. The obtained results indicate that the circular tube honeycomb has better blast mitigation characteristics than the square honeycomb, which improves with foam filling. The circular tube-strengthened square honeycomb provides the lightest stiffened sandwich panel with the smallest deformation and face deflections under all explosive loadings.

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Section: Numerical Modelingmentioning

confidence: 99%

Section: Air-blast Loadingmentioning

confidence: 99%

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Design and analysis of lightweight stiffened honeycomb metallic sandwich panels under high-intensity air blast

Patel

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Li et al [ 25 ] found that ultralight all-metallic honeycomb panels outperform traditional metallic plates in blast resistance, thanks to their energy absorption capabilities. Ghate and Goel [ 26 ] enhanced this efficiency by exploring different aluminum core topologies (square, circular, hexagonal), with multi-layered cores showing superior strength and energy dissipation. Patel and Patel [ 27 ] demonstrated that increased core height in honeycomb panels improves blast resistance by enhancing energy absorption and reducing back face deflection, especially with 71 mm cores.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

“…Ghate and Goel [ 26 ] enhanced this efficiency by exploring different aluminum core topologies (square, circular, hexagonal), with multi-layered cores showing superior strength and energy dissipation. Patel and Patel [ 27 ] demonstrated that increased core height in honeycomb panels improves blast resistance by enhancing energy absorption and reducing back face deflection, especially with 71 mm cores. Similarly, their subsequent study [ 28 ] indicated that smaller cell sizes in these panels offer better resistance in low-intensity blasts.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%