Browse > Article
http://dx.doi.org/10.7234/kscm.2009.22.4.027

Crashworthy behaviour of cellular polymer under constant impact energy  

Jeong, Kwang-Young (국립공주대학교 공과대학 기계자동차공학부)
Cheon, Seong-Sik (국립공주대학교 공과대학 기계자동차공학부)
Publication Information
Composites Research / v.22, no.4, 2009 , pp. 27-32 More about this Journal
Abstract
Characterisation of the stress-strain relationship as well as crashworthiness of cellular polymer was investigated under constant impact energy with different velocities, considering inertia and strain rate effects simultaneously during the impact testing. Quasi-static and impact tests were carried out for two different density (64 $kg/m^3$, 89 $kg/m^3$) cellular polymer specimens. Also, the equations, coupled with the Sherwood-Frost model and the Impulse-Momentum theory, were employed to build the constitutive relation of the cellular polymer. The nominal stress-strain curves obtained from the constitutive relation were compared with results from impact tests and showed to be in good agreement.
Keywords
crashworthiness; cellular polymer; constitutive model; impact energy;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Szycher, M., Szycher's Handbook of Polyurethanes Boca Raton: CRC press, 1999
2 Rusch, K.C. "Load-compression Behaviour of Flexible Foams," J. Applied Polymer Science, Vol.13, 1969, pp. 2297-2311   DOI
3 Su, X.Y., Yu, T.X. and Reid, S.R., "Inertia-sensitive Impact Energy-absorbing Structures Part II: Effect of Strain-rate," Int. J. Impact Eng., Vol. 16, 1995, pp. 673-689   DOI   ScienceOn
4 Langseth, M. Hopperstad， O.S. and Berstad, T., "Crashworthiness of Aluminium Extrusions: Validation of Numerical Simulation, Effects of Mass Ratio and Impact Velocity," Int. J. Impact Eng., Vol. 22, 1999, pp. 829-854   DOI   ScienceOn
5 Beer, F.P. and Johnston Jr., E.R., Vector Mechanics for Engineers: Dynamics, McGraw-Hill, 1981
6 Sherwood, J.A. and Frost, C.C., "Constitutive Modeling and Simulation of Energy Absorbing Polyurethane Foam Under Impact Loading," Polymer Engineering and Science, Vol. 32, 1992, pp. 1138-1146   DOI
7 Tam， L.L. and Calladine, C.R , "lnertia and Strain-rate Effects in a Simple Plate-structure Under Impact Loading," Int J. Impact Eng., Vol. 11, 1991, pp. 349-377   DOI   ScienceOn
8 Avalle, M., Belingardi, G. and Montanini, R., "Characterization of Polymeric Structural Foams under Compressive Impact Loading by Means of Energy Absorption Diagram," lnt J. lmpact Eng. , Vol. 25, 2001 , pp.455-472   DOI   ScienceOn
9 Su, X.Y., Yu, T.X. and Reid, S.R., "Inertia-sensitive lmpact Energy-absorbing Structures Part 1: Effects of Inertia and Elasticity," Int. J. Impact Eng. , Vol. 16, 1995, pp. 651-672   DOI   ScienceOn
10 Kim, A, Tunvir, K., Jeong, G.D. and Cheon, S.S., "A Multi-cell FE-model for Compressive Behaviour Analysis of Heterogeneous AI-alloy Foam," Modelling and Simulation in Materials Science and Engineering, Vol. 14, 2006, pp.933-945   DOI   ScienceOn
11 Lopatnikov, S.L., Gama, B.A. and Gillespie Jr J. W., "Modeling the Progressive Collapse Behaviour of Metal Foams," Int. J. Impact Eng., Vol. 34, 2007, pp. 587-595   DOI   ScienceOn
12 Kim, A., Hasan, M.D.A., Cheon, S.S. and Lee, H.J., "The Constitutive Behavior of Metallic Foams using Nanoindentation Technique and FE ModeJIing," Key Engineering Materials, Vol. 297-300, 2005, pp.1050-1055   DOI
13 전성식, "통계적 유한요소모텔을 이용한 발포된 금속기지 복합재료의 인장특성," 한국복합재료학회지, 제17권, 2004, pp. 34-39   과학기술학회마을
14 Paul, A. and Ramamurty, U., "Strain Rate Sensitivity of a Closed-cell Aluminium Foam," Materials Science and Engineering A, Vol. 281 , 2000, pp. 1-7   DOI   ScienceOn
15 Shim, V.P.W., Tu, Z.H. and Lim, C.T., "Two-dimensional Response of Crushable Polyurethane Foam to Low Velocity Impact," lnt. J. lmpact Eng., Vol. 24, 2000, pp. 703-731   DOI   ScienceOn
16 Meinecke, E.A. and Schwaber, D.M., "Energy Absorption in Polymeric Foams," J. Applied Polymer Science, Vol. 14, 1970, pp. 2239-2248   DOI
17 Meguid, S.A., Cheon, S.S. and EI-Abbasi, N., "FE Modelling of Deformation Localization in Metallic Foams," Finite Elements in Analysis and Design, Vol.38, 2002, pp.631-643   DOI   ScienceOn
18 Gibson, L.J. and Ashby, M.F., Cellular Solids: Structure and Properties, Pergamon Press, 1998