Superelasticity and reversible energy absorption of polyurethane cellular structures with sand filler

Jilav ZHOU; Xiaobin DENG; Yuan YAN; Xi CHEN; Yilun LIU

doi:10.1016/j.compstruct.2015.06.059

Superelasticity and reversible energy absorption of polyurethane cellular structures with sand filler

Jilav ZHOU, Xiaobin DENG, Yuan YAN, Xi CHEN^*, Yilun LIU^*

^*Corresponding author for this work

Research output: Journal Publications › Journal Article (refereed) › peer-review

31 Citations (Scopus)

Abstract

As a promising candidate for energy absorption and resilient system, a polymer encased sand structure is studied experimentally. The polyurethane (PU) cellular structures are consisted of periodically arranged hollow truncated hemi-ellipsoids with sand particles filled inside. The resilience of PU and dissipation of sand are combined to construct a high performance energy absorption material and structure (EAMS) which exhibit superelasticity with reversible compression strain up to 0.9 and have recoverable energy absorption capability of about 3.4MJ/m3 per loading cycle. The compressive stress of the sand filled PU cellular structures is also significantly enhanced (thanks for the sand filler) for compressive strain larger than 0.4. The sand filled PU cellular structures are soft and flexible to stretch, bend and twist, thus compatible for personnel protection. The results presented in this work provide guidelines for designing and engineering high performance EAMS that are resilient, flexible, and of high energy absorption density. © 2015 Elsevier Ltd.

Original language	English
Pages (from-to)	966-974
Number of pages	9
Journal	Composite Structures
Volume	131
Early online date	4 Jul 2015
DOIs	https://doi.org/10.1016/j.compstruct.2015.06.059
Publication status	Published - 1 Nov 2015
Externally published	Yes

Bibliographical note

Y.L. acknowledges the support from the National Natural Science Foundation of China (11302163 and 11321062) and X.C. acknowledges the support from the National Natural Science Foundation of China (11172231 and 11372241), ARPA-E (DE-AR0000396) and AFOSR (FA9550-12-1-0159).

Keywords

Polyurethane cellular structures
Reversible energy absorption
Sand filler
Superelasticity

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10.1016/j.compstruct.2015.06.059

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title = "Superelasticity and reversible energy absorption of polyurethane cellular structures with sand filler",

abstract = "As a promising candidate for energy absorption and resilient system, a polymer encased sand structure is studied experimentally. The polyurethane (PU) cellular structures are consisted of periodically arranged hollow truncated hemi-ellipsoids with sand particles filled inside. The resilience of PU and dissipation of sand are combined to construct a high performance energy absorption material and structure (EAMS) which exhibit superelasticity with reversible compression strain up to 0.9 and have recoverable energy absorption capability of about 3.4MJ/m3 per loading cycle. The compressive stress of the sand filled PU cellular structures is also significantly enhanced (thanks for the sand filler) for compressive strain larger than 0.4. The sand filled PU cellular structures are soft and flexible to stretch, bend and twist, thus compatible for personnel protection. The results presented in this work provide guidelines for designing and engineering high performance EAMS that are resilient, flexible, and of high energy absorption density. {\textcopyright} 2015 Elsevier Ltd.",

keywords = "Polyurethane cellular structures, Reversible energy absorption, Sand filler, Superelasticity",

author = "Jilav ZHOU and Xiaobin DENG and Yuan YAN and Xi CHEN and Yilun LIU",

note = "Y.L. acknowledges the support from the National Natural Science Foundation of China (11302163 and 11321062) and X.C. acknowledges the support from the National Natural Science Foundation of China (11172231 and 11372241), ARPA-E (DE-AR0000396) and AFOSR (FA9550-12-1-0159).",

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doi = "10.1016/j.compstruct.2015.06.059",

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T1 - Superelasticity and reversible energy absorption of polyurethane cellular structures with sand filler

AU - ZHOU, Jilav

AU - DENG, Xiaobin

AU - YAN, Yuan

AU - CHEN, Xi

AU - LIU, Yilun

N1 - Y.L. acknowledges the support from the National Natural Science Foundation of China (11302163 and 11321062) and X.C. acknowledges the support from the National Natural Science Foundation of China (11172231 and 11372241), ARPA-E (DE-AR0000396) and AFOSR (FA9550-12-1-0159).

PY - 2015/11/1

Y1 - 2015/11/1

N2 - As a promising candidate for energy absorption and resilient system, a polymer encased sand structure is studied experimentally. The polyurethane (PU) cellular structures are consisted of periodically arranged hollow truncated hemi-ellipsoids with sand particles filled inside. The resilience of PU and dissipation of sand are combined to construct a high performance energy absorption material and structure (EAMS) which exhibit superelasticity with reversible compression strain up to 0.9 and have recoverable energy absorption capability of about 3.4MJ/m3 per loading cycle. The compressive stress of the sand filled PU cellular structures is also significantly enhanced (thanks for the sand filler) for compressive strain larger than 0.4. The sand filled PU cellular structures are soft and flexible to stretch, bend and twist, thus compatible for personnel protection. The results presented in this work provide guidelines for designing and engineering high performance EAMS that are resilient, flexible, and of high energy absorption density. © 2015 Elsevier Ltd.

AB - As a promising candidate for energy absorption and resilient system, a polymer encased sand structure is studied experimentally. The polyurethane (PU) cellular structures are consisted of periodically arranged hollow truncated hemi-ellipsoids with sand particles filled inside. The resilience of PU and dissipation of sand are combined to construct a high performance energy absorption material and structure (EAMS) which exhibit superelasticity with reversible compression strain up to 0.9 and have recoverable energy absorption capability of about 3.4MJ/m3 per loading cycle. The compressive stress of the sand filled PU cellular structures is also significantly enhanced (thanks for the sand filler) for compressive strain larger than 0.4. The sand filled PU cellular structures are soft and flexible to stretch, bend and twist, thus compatible for personnel protection. The results presented in this work provide guidelines for designing and engineering high performance EAMS that are resilient, flexible, and of high energy absorption density. © 2015 Elsevier Ltd.

KW - Polyurethane cellular structures

KW - Reversible energy absorption

KW - Sand filler

KW - Superelasticity

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DO - 10.1016/j.compstruct.2015.06.059

M3 - Journal Article (refereed)

SN - 0263-8223

VL - 131

SP - 966

EP - 974

JO - Composite Structures

JF - Composite Structures

ER -

Superelasticity and reversible energy absorption of polyurethane cellular structures with sand filler

Abstract

Bibliographical note

Keywords

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