Investigation of energy absorption capabilities of compressed and uncompressed crushable foams

Compressed and uncompressed crushable foam blocks were subjected to projectile impact at low velocity to evaluate and compare the foam resistance against the projectile impact. Among many crushable foam applications their energy absorbing characteristics play a prominent role to secure the structure...

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Autores principales:	Qasim H. SHAH, Ameen TOPA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2015
Materias:	compressed foam crushable foam impact resistance ls-dyna low velocity projectile Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/1faaa1c4945348adaedd03111fe0913e
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spelling	oai:doaj.org-article:1faaa1c4945348adaedd03111fe0913e2021-11-26T06:30:10ZInvestigation of energy absorption capabilities of compressed and uncompressed crushable foams2187-974510.1299/mej.14-00510https://doaj.org/article/1faaa1c4945348adaedd03111fe0913e2015-09-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/2/5/2_14-00510/_pdf/-char/enhttps://doaj.org/toc/2187-9745Compressed and uncompressed crushable foam blocks were subjected to projectile impact at low velocity to evaluate and compare the foam resistance against the projectile impact. Among many crushable foam applications their energy absorbing characteristics play a prominent role to secure the structures against impacting objects. In the present work numerical simulations using finite element hydrocode LS-DYNA were first carried out to study the crushable foam behaviour when subjected to the impact by steel projectiles moving at an average velocity of 48 ms-1. A number of experiments were conducted to validate the numerical modelling. In the numerical analysis the foam properties were based upon previous work on crushable foam (Shah and Topa, 2014). It was found that the projectile impact on compressed foam, enhanced resistance against projectile penetration. Compressing the foam increases its density which results in an increase in the rate of energy absorption per unit time.Qasim H. SHAHAmeen TOPAThe Japan Society of Mechanical Engineersarticlecompressed foamcrushable foamimpact resistancels-dynalow velocity projectileMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 2, Iss 5, Pp 14-00510-14-00510 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	compressed foam crushable foam impact resistance ls-dyna low velocity projectile Mechanical engineering and machinery TJ1-1570
spellingShingle	compressed foam crushable foam impact resistance ls-dyna low velocity projectile Mechanical engineering and machinery TJ1-1570 Qasim H. SHAH Ameen TOPA Investigation of energy absorption capabilities of compressed and uncompressed crushable foams
description	Compressed and uncompressed crushable foam blocks were subjected to projectile impact at low velocity to evaluate and compare the foam resistance against the projectile impact. Among many crushable foam applications their energy absorbing characteristics play a prominent role to secure the structures against impacting objects. In the present work numerical simulations using finite element hydrocode LS-DYNA were first carried out to study the crushable foam behaviour when subjected to the impact by steel projectiles moving at an average velocity of 48 ms-1. A number of experiments were conducted to validate the numerical modelling. In the numerical analysis the foam properties were based upon previous work on crushable foam (Shah and Topa, 2014). It was found that the projectile impact on compressed foam, enhanced resistance against projectile penetration. Compressing the foam increases its density which results in an increase in the rate of energy absorption per unit time.
format	article
author	Qasim H. SHAH Ameen TOPA
author_facet	Qasim H. SHAH Ameen TOPA
author_sort	Qasim H. SHAH
title	Investigation of energy absorption capabilities of compressed and uncompressed crushable foams
title_short	Investigation of energy absorption capabilities of compressed and uncompressed crushable foams
title_full	Investigation of energy absorption capabilities of compressed and uncompressed crushable foams
title_fullStr	Investigation of energy absorption capabilities of compressed and uncompressed crushable foams
title_full_unstemmed	Investigation of energy absorption capabilities of compressed and uncompressed crushable foams
title_sort	investigation of energy absorption capabilities of compressed and uncompressed crushable foams
publisher	The Japan Society of Mechanical Engineers
publishDate	2015
url	https://doaj.org/article/1faaa1c4945348adaedd03111fe0913e
work_keys_str_mv	AT qasimhshah investigationofenergyabsorptioncapabilitiesofcompressedanduncompressedcrushablefoams AT ameentopa investigationofenergyabsorptioncapabilitiesofcompressedanduncompressedcrushablefoams
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Investigation of energy absorption capabilities of compressed and uncompressed crushable foams

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