Performance of metallic honeycomb-core sandwich beams under shock loading

By H. Rathbun, D. Radford, Zhenyu Xue, M. He, J. Yang, V. Deshpande, Norman A. Fleck, J. W. Hutchinson, F. Zok, A. G. Evans. 2006

218 citations recorded by the source corpus.

Stainless steel square honeycomb core sandwich and solid monolithic beams have been subjected to high-pressure, short-duration impulses using a shock simulation technique involving high-speed impact of Al foam projectiles. The experiments have been designed to achieve two objectives: (i) to demonstrate the benefits of sandwich construction, and (ii) to assess the fidelity of dynamic finite element calculations in simulating the structural response. The results affirm that, when subjected to impulse levels representative of those associated with nearby explosions, the sandwich beams exhibit smaller displacements than the solid beams at equivalent weight. The benefit is especially large at lower impulses where the effective dynamic strength of the honeycomb core prevents crushing. The measurements and finite element simulations having greatest relevance to the shock resistance are found to correspond closely, particularly the displacements and the core crushing strains. One implication is that the dynamic finite element model has the requisite fidelity at impulse levels of interest. 2005 Elsevier Ltd. All rights reserved.

Subfields: Materials Chemistry, Mechanical Engineering, Pulmonary and Respiratory Medicine

View Paper: https://www.semanticscholar.org/paper/21cb0e9a65a68842cecd6c9a2b380a6b9e9de002

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

1. H. Wadley
2. Mijia Yang
3. Zhihua Wang
4. Pizhong Qiao
5. Feng Zhu
6. D. Ruan
7. Guoxing Lu
8. J. W. Hutchinson

In Mechanical Engineering

1. H. Wadley
2. Guoxing Lu
3. D. Ruan
4. Zhihua Wang
5. Feng Zhu
6. J. W. Hutchinson
7. Kumar P. Dharmasena
8. Zhenyu Xue

In Pulmonary and Respiratory Medicine

1. Guoxing Lu
2. D. Ruan
3. Hamid Nayeb-Hashemi
4. Ashkan Vaziri
5. A. Ajdari
6. Qingming Li
7. Yongle Sun
8. V. Deshpande

Citations in the corpus

• Impact Mechanics and High-Energy Absorbing Materials: Review (2008, background): “Although numerical codes become more and more sophisticated, many problems related to accurately predicting real material behavior at impact and penetration remain to be solved.”
• Response of aluminium honeycomb sandwich panels subjected to foam projectile impact - An experimental study (2015, methodology): “M AN US CR IP T AC CE PT ED ACCEPTED MANUSCRIPT response and energy absorption capacity of honeycom b sandwich beams [3-8] and honeycomb sandwich panels [9-11] with different cor e configurations.”
• Response of metallic pyramidal lattice core sandwich panels to high intensity impulsive loading in air (2011, background): “After the beneficial FSI effect had been confirmed in water [2-8], numerous sandwich panel concepts for impulse and pressure mitigation have been explored [7-17].”
• Experimental and numerical study of foam filled corrugated core steel sandwich structures subjected to blast loading (2014, background): “These include pyramidal cores [4–6], diamond celled lattice cores [7], corrugated cores [8], hexagonal honeycomb cores [9], foam cores [10], and square honeycomb cores [11].”
• Compressive response of multilayered pyramidal lattices during underwater shock loading (2008, background): “Several groups have used small-scale impact testing and numerical analysis to probe the dynamic response of these different structures and to experimentally ascertain those best suited for blast mitigation applications [19–23].”
• Dynamic crushing and energy absorption of regular, irregular and functionally graded cellular structures (2011, background): “…over the counterpart solid plates of equal mass under shock loading (Dharmasena et al., 2009; Liang et al., 2007; Mori et al., 2007, 2009; Rathbun et al., 2006; ll rights reserved. l. Dynamic crushing and energy r.2010.10.018 Vaziri and Hutchinson, 2007; Vaziri et al., 2007; Wadley et…”
• Plastic Deformation, Failure and Energy Absorption of Sandwich Structures with Metallic Cellular Cores (2010, methodology): “This approach has been applied to test the blast loading performance of a wide range of sandwich structures: sandwich plates with steel faces and aluminium foam core [123]; sandwich plates with steel faces and steel pyramidal and square honeycomb cores [124]; sandwich beams comprising steel faces an”
• Mechanical response of metallic honeycomb sandwich panel structures to high-intensity dynamic loading (2008, background): “Several groups have examined the dynamic response of sandwich structures to impulse loading [1] [2] [3] [4] [5].”