Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading

Polymeric foams are widely used as core materials in various applications such as in cushioning, padding, insulating, structural use and buoyancy. This is because of its ability to provide high bending stiffness tied with lightweight in sandwich construction. The purpose of this paper is to investig...

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Main Authors: M. R. M., Rejab, N. M. Zuki, N. M., M. M., Noor
Format: Conference or Workshop Item
Language:English
Published: 2008
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/1381/3/Strain_Rate_Effects_of_Polymeric_Foam_Cores_under_Compressive.pdf
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author M. R. M., Rejab
N. M. Zuki, N. M.
M. M., Noor
author_facet M. R. M., Rejab
N. M. Zuki, N. M.
M. M., Noor
author_sort M. R. M., Rejab
collection UMP
description Polymeric foams are widely used as core materials in various applications such as in cushioning, padding, insulating, structural use and buoyancy. This is because of its ability to provide high bending stiffness tied with lightweight in sandwich construction. The purpose of this paper is to investigate the strain rate effects to the polymeric foam cores under compression load. The case study included rigid polyurethane (PUR), low density polyethylene (LDPE) and polystyrene (PS) foam cores. In order to study the strain-rate dependence for these three different foams, compression tests based on the ASTM D 1621 were conducted over a range in strain rates of 0.0001 s-1 to 0.01 s-1 under the 50kN-Instron universal testing machine. From the compression data, the stress-strain curves were produced. The results from the tests show that when the strain rate is higher, the area under the plateau region increases and higher amount of energy can be absorbed. The results also shows that the collapse stresses of the foams increased linearly with the logarithm of the strain rate.
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spelling UMPir13812018-01-09T03:05:09Z http://umpir.ump.edu.my/id/eprint/1381/ Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading M. R. M., Rejab N. M. Zuki, N. M. M. M., Noor TJ Mechanical engineering and machinery Polymeric foams are widely used as core materials in various applications such as in cushioning, padding, insulating, structural use and buoyancy. This is because of its ability to provide high bending stiffness tied with lightweight in sandwich construction. The purpose of this paper is to investigate the strain rate effects to the polymeric foam cores under compression load. The case study included rigid polyurethane (PUR), low density polyethylene (LDPE) and polystyrene (PS) foam cores. In order to study the strain-rate dependence for these three different foams, compression tests based on the ASTM D 1621 were conducted over a range in strain rates of 0.0001 s-1 to 0.01 s-1 under the 50kN-Instron universal testing machine. From the compression data, the stress-strain curves were produced. The results from the tests show that when the strain rate is higher, the area under the plateau region increases and higher amount of energy can be absorbed. The results also shows that the collapse stresses of the foams increased linearly with the logarithm of the strain rate. 2008 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/1381/3/Strain_Rate_Effects_of_Polymeric_Foam_Cores_under_Compressive.pdf M. R. M., Rejab and N. M. Zuki, N. M. and M. M., Noor (2008) Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading. In: Proceeding of Science, Technology and Social Science Conference (STSS) . pp. 267-275.. (Published)
spellingShingle TJ Mechanical engineering and machinery
M. R. M., Rejab
N. M. Zuki, N. M.
M. M., Noor
Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading
title Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading
title_full Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading
title_fullStr Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading
title_full_unstemmed Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading
title_short Strain Rate Effects of Polymeric Foam Cores Under Compressive Loading
title_sort strain rate effects of polymeric foam cores under compressive loading
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/1381/3/Strain_Rate_Effects_of_Polymeric_Foam_Cores_under_Compressive.pdf
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