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http://dx.doi.org/10.7234/composres.2016.29.3.091

A Constitutive Equation with Impulse-Momentum Theory for the Expanded Polypropylene  

Kim, Byeong Kil (Department of Mechanical Engineering, Kongju National University)
Cho, Jae Ung (Division of Mechanical & Automotive Engineering, Kongju National University)
Jeong, Kwang Young (Division of Mechanical & Automotive Engineering, Kongju National University)
Kim, Nam Hoon (Division of Mechanical & Automotive Engineering, Kongju National University)
Oh, Bum S. (Division of Mechanical & Automotive Engineering, Kongju National University)
Hahn, Youngwon (Dassault Systemes SIMULIA)
Cheon, Seong S. (Division of Mechanical & Automotive Engineering, Kongju National University)
Publication Information
Composites Research / v.29, no.3, 2016 , pp. 91-97 More about this Journal
Abstract
In this paper, impulse-momentum theory was coupled to a constitutive equation both for implementing quasi-static and impact characteristics of EPP (Expanded polypropylene). Also, parameters which have physical meanings were expressed as functions of relative density. Simultaneous nonlinear Newton-Raphson method was applied to find the proper values for parameters in the constitutive equation along with quasi-static test data. Results from the impulse-momentum theory coupled constitutive equation showed good agreement with experimental data and the potential to be applied to different material type polymeric foam.
Keywords
Constitutive equation; Expanded Polypropylene; Impulse momentum; Instrumented impact test; Quasi-static test;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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