Experimental and Numerical Analysis of Foam-Filled Aluminum Conical Tubes Subjected to Oblique Impact Loading

Fauziah Mat; Khairul Azwan Ismail; Sazali Yaacob; Zaini Ahmad

doi:10.3139/120.110663

Article

Experimental and Numerical Analysis of Foam-Filled Aluminum Conical Tubes Subjected to Oblique Impact Loading

Fauziah Mat , Khairul Azwan Ismail , Sazali Yaacob and Zaini Ahmad

Published/Copyright: November 20, 2014

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From the journal Materials Testing Volume 56 Issue 11-12

Abstract

This study aims to investigate the response of AA6061-T6 conical tubes under oblique impact loading, for variations in filler density and tube material by using experimentally validated model. Good correlations between the numerical and experimental results were observed. The initial peak force and dynamic force increase from AA6061-T6 to carbon steel tubes and further increase with increasing filler density, leading to increased energy absorption capacity. Conversely, the initial peak force and dynamic force of empty and foam-filled AA6061-T6 conical tubes decrease with the introduction of oblique loading as the load angle increases from 0° to 20°, leading to reduced energy absorption capacity. Carbon steel is relatively more advantageous compared with AA6061-T6 in terms of energy absorption, whereas AA6061-T6 is comparable with carbon steel because of its lower initial peak force.

Kurzfassung

Die diesem Beitrag zugrunde liegende Studie zielt darauf ab, das Verhalten von konischen Aluminiumrohren aus der Legierung AA6061-T6 unter Biege-Stoßbeanspruchung zu untersuchen, indem die Fülldichte und der Rohrwerkstoff unter Verwendung eines experimentell validierten Modells variiert. Es wurden gute Übereinstimmungen zwischen numerischen und experimentellen Ergebnissen festgestellt. Die Anfangskraft und die dynamischen Kräfte nehmen mit dem Wechsel von der Legierung AA6061-T6 zu einem Kohlenstoffstahl zu und steigen weiter an mit zunehmender Füllmaterialdichte, wodurch sich eine erhöhte Energieabsorptionskapazität einstellt. Umgekehrt nehmen die Anfangskraft und die dynamische Kraft der leeren und schaumgefüllten konischen Aluminiumrohre aus der Legierung AA6061-T6 ab, wenn die Biege-Stoßbeanspruchung unter einem von 0° auf 20° erhöhten Winkel eingeleitet wird, was zu einer verringerten Energieabsorptionskapazität führt. Kohlenstoffstahl erweist sich gegenüber der Aluminiumlegierung AA6062-T6 als vorteilhafter in Bezug auf die Energieabsorption, wobei sich AA6061-T6 als vergleichbar mit dem Kohlenstoffstahl bezüglich der niedrigeren Anfangskraft erweist.

Keywords: Materials testing; conical tube; oblique impact loading; finite element

*Correspondence Address, MSc Fauziah Mat, School of Mechatronic Engineering, University of Malaysia, 61000 Perlis, Malaysia. E-mail: fauziah@unimap.edu.my

Fauziah Mat received her BEng and MEng from the National University of Malaysia (Universiti Kebangsaan Malaysia). She is currently working in the School of Mechatronics Engineering, University Malaysia Perlis (UniMAP), Perlis, Malaysia as a lecturer. Her research interests are solid mechanics, non-linear finite element analysis as well as impact mechanics. She has received several research grants from the Ministry of Education Malaysia and UniMAP.

Dr. Khairul Azwan Ismail is Senior Lecturer at the School of Manufacturing Engineering, University Malaysia Perlis. He graduated from the University of Cambridge, United Kingdom, in 2009 with a PhD degree in Engineering. His research interests include modeling of viscoplastic impact, impact of rigid bodies, impact energy absorption as well as some of the latest topics in mechanics.

Dr. Sazali Yaacob received his BEng from Universiti Malaysia, Kuala Lumpur, Malaysia and later finished his MSc in System Engineering at the University of Surrey, United Kingdom, and PhD in Control Engineering at the University of Sheffield, United Kingdom. His research interests are control, modeling and signal processing with applications in the fields of satellite, bio-medical, applied mechanics and robotics. He is the Head of the Intelligent Signal Processing Research Cluster of University Malaysia Perlis (UniMAP) since 2005. From 1998-2004, he was the Dean for School of Engineering and Information Technology, University Malaysia Sabah and upon his transfer to University Malaysia Perlis, he was given the mandate as the Dean for School of Mechatronic Engineering from 2005-2007 and also the post of Deputy Vice-Chancellor for Academics from 2009-2010. He received his professional qualification as Charted Engineer from the Engineering Council, United Kingdom in 2005 and he is also a member of the Institute of Engineering and Technology, United Kingdom, since 2003.

Dr. Zaini Ahmad is currently a senior lecturer at University Teknologi Malaysia, Johor Bahru, Malaysia. He received his Master of Sciences (structures, crashworthiness & impact) from Cranfield University, United Kingdom in 2004. He obtained his PhD in Structural Impact at Queensland University of Technology in Brisbane, Australia, in 2009. Computational solid mechanics is one of his primary research interests. Other areas of expertise are finite element modeling/simulation, crashworthiness, impact mechanics, crash analysis, thin-walled structures as well as failure of structure under dynamic loading.

References

1 Z.Li, J.Yu, L.Guo: Deformation and energy absorption of aluminum foam-filled tubes subjected to oblique loading, International Journal of Mechanical Sciences54 (2012), No. 1, pp. 48–56 DOI:10.1016/j.ijmecsci.2011.09.006Search in Google Scholar

2 G.Nagel, D.Thambiratnam: Computer simulation and energy absorption of tapered thin-walled rectangular tubes, Thin-Walled Structures43 (2005), No. 8, pp. 1225–1242 DOI:10.1016/j.tws.2005.03.008Search in Google Scholar

3 G.Nagel, D.Thambiratnam: Dynamic simulation and energy absorption of tapered thin-walled tubes under oblique impact loading, International Journal of Impact Engineering32 (2006), No. 10, pp. 1595–1620 DOI:10.1016/j.ijimpeng.2005.01.002Search in Google Scholar

4 M. A.Guler, M. E.Cerit, B.Bayram, G.Gerceker: The effect of geometrical parameters on the energy absorption characteristics of thin-walled structures under axial impact loading, Journal of Crashworthiness4 (2010), pp. 377–390 DOI:10.1080/13588260903488750Search in Google Scholar

5 N. K.Gupta, G. L. E.Prasad, S. K.Gupta: Plastic collapse of metallic conical frusta of large semi-apical angles, International Journal of Crashworthiness2 (1997), pp. 349–366 DOI:10.1533/cras.1997.0054Search in Google Scholar

6 A. G.Mamalis, D. E.Manolakos, M. B.Ioannidis, P. K.Kostazos: Numerical simulation of thin-walled metallic circular frusta subjected to axial loading, International Journal of Crashworthiness10 (2005), No. 5, pp. 505–513 DOI:10.1533/ijcr.2005.0365Search in Google Scholar

7 A.Reyes, O. S.Hopperstad, M.Langseth: Aluminum foam-filled extrusions subjected to oblique loading: Experimental and numerical study, International Journal of Solids and Structures41 (2004), No. 5–6, pp. 1645–1675 DOI:10.1016/j.ijsolstr.2003.09.053Search in Google Scholar

8 G.Lu, J.Yu: Energy Absorption of Structures and Materials, 1^st Ed.Woodhead Publishing Limited, Cambridge, UK (2003)10.1533/9781855738584Search in Google Scholar

9 L.Aktay, A.Toksoy, M.Guden: Quasi-static axial crushing of extruded polystyrene foam-filled thin-walled aluminum tubes: Experimental and numerical analysis, Materials and Design27 (2006), No. 7, pp. 556–565 DOI:10.1016/j.matdes.2004.12.019Search in Google Scholar

10 Z.Ahmad, D. P.Thambiratnam: Crushing response of foam-filled conical tubes under quasi-static axial loading, Materials and Design30 (2009), No. 7, pp. 2393–2403 DOI:10.1016/j.matdes.2008.10.017Search in Google Scholar

11 S. P.Santosa, T.Wierzbicki, A. G.Hanssen, M.Langseth: Experimental and numerical studies of foam-filled sections, International Journal of Impact Engineering24 (2000), pp. 734–743 DOI:10.1016/S0734-743X(99)00036-6Search in Google Scholar

12 M.Güden, H.Kavi: Quasi-static axial compression behavior of constraint hexagonal and square-packed empty and aluminum foam-filled aluminum multi-tubes, Thin-Walled Structures44 (2006), No. 7, pp. 739–750 DOI:10.1016/j.tws.2006.07.003Search in Google Scholar

13 Z.Ahmad, D.Thambiratnam: Dynamic computer simulation and energy absorption of foam-filled conical tubes under axial impact loading, Computers & Structures87 (2009), No. 3–4, pp. 186–197 DOI:10.1016/j.compstruc.2008.10.003Search in Google Scholar

14 ASTM B557-06: Standard test methods for tension testing wrought and cast aluminum and magnesium alloy products, ASTM, USA (2006) DOI:10.1520/B0557-06Search in Google Scholar

15 ASTM D1621-10: Standard test method for compressive properties of rigid cellular plastics, ASTM, USA (2010)DOI:10.1520/D1621-10Search in Google Scholar

16 Z.Ahmad, D. P.Thambiratnam, A. C. C.Tan: Dynamic energy absorption characteristics of foam-filled conical tubes under oblique impact loading, International Journal of Impact Engineering37 (2010), No. 5, pp. 475–488 DOI:10.1016/j.ijimpeng.2009.11.010Search in Google Scholar

17 J.Hallquist: LS-DYNA Theoretical Manual, Livermore Software Technology Coorporation, Livermore, USA (2006)Search in Google Scholar

18 N.Sheriff, N. K.Gupta, R.Velmurugan, N.Shanmugapriyan: Optimization of thin conical frusta for impact energy absorption, Thin-Walled Structures46 (2008), pp. 653–666 DOI:10.1016/j.tws.2007.12.001Search in Google Scholar

19 N. N.: LS-DYNA Keyword User's Manual, Livermore Software Technology Corporation (LSTC), Livermore USA (2007)Search in Google Scholar

20 M.Ahmad, K. A.Ismail, F.Mat: Convergence of finite element model for crushing of a conical thin-walled tube, Procedia Engineering (2013), pp. 586–593 DOI:10.1016/j.proeng.2013.02.075Search in Google Scholar

21 T.B⊘rvik, O. S.Hopperstad, A.Reyes, M.Langseth: Empty and foam-filled circular aluminium tubes subjected to axial and oblique quasi-static loading, Int. J. of Crashworthiness8 (2003), No. 5, pp. 481–494 DOI:10.1533_ijcr.2003.0254.risSearch in Google Scholar

22 G. R.Cowper, P. S.Symonds: Strain hardening and strain-rate effects in the impact loading of cantilever beams, Division of Applied Mathematics, Brown University Report No.28 (1957)10.21236/AD0144762Search in Google Scholar

23 T. Y.Reddy, S.Al Hassani: Axial crushing of wood-filled square metal tubes, International Journal of Mechanical Sciences35 (1993), No. 3, pp. 231–246 DOI:10.1016/0020-7403(93)90078-9Search in Google Scholar

24 S.Bodner, P.Symonds: Experimental and theoretical investigation of the plastic deformation of cantilever beans subjected to impulsive loading, Journal of Applied Mechanics29 (1962), pp. 719–728 DOI:10.1115/1.3640660Search in Google Scholar

25 A. G.Mamalis, D. E.Manolakos, M. B.Ioannidis, K. N.Spentzas, S.Koutroubakis: Static axial collapse of foam-filled steel thin-walled rectangular tubes: Experimental and numerical simulation, International Journal of Crashworthiness13 (2008), No. 2, pp. 117–126 DOI:10.1080/13588260701731781Search in Google Scholar

26 G.Nagel, D.Thambiratnam: A numerical study on the impact response and energy absorption of tapered thin-walled tubes, International Journal of Mechanical Sciences46 (2004), No. 2, pp. 201–216 DOI:10.1016/j.ijmecsci.2004.03.006Search in Google Scholar

27 A.Reyes, M.Langseth, O. S.Hopperstad: Crashworthiness of aluminum extrusions subjected to oblique loading: Experiments and numerical analyses, International Journal of Mechanical Sciences44 (2002), No. 9, pp. 1965–1984 DOI:10.1016/S0020-7403(02)00050-4Search in Google Scholar

28 F.Mat, K. A.Ismail, M.Ahmad, S.Yaacob, O.Inayatullah: Dynamic axial crushing of empty and foam-filled conical aluminum tubes: Experimental and numerical analysis, International Symposium on Impact Engineering2013(ISIE2013), Osaka, Japan (2013)Search in Google Scholar

29 J.Bi, H.Fang, Q.Wang, X.Ren: Modeling and optimization of foam-filled thin-walled columns for crashworthiness designs, Finite Elements in Analysis and Design46 (2010), No. 9, pp. 698–709 DOI:10.1016/j.finel.2010.03.008Search in Google Scholar

30 S.Reid, T.Reddy: Axial crushing of foam-filled tapered sheet metal tubes, International Journal of Mechanical Sciences28 (1986), No. 10, pp. 643–656 DOI:10.1016/0020-7403(86)90010-XSearch in Google Scholar

Published Online: 2014-11-20

Published in Print: 2014-11-17

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Articles in the same Issue

https://doi.org/10.3139/120.110663

Keywords for this article

Materials testing; conical tube; oblique impact loading; finite element