This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Finite Element Modeling of the Axial Crushing of AA6061 T4 and T6 and AA6063 T5 Structural Square Tubes with Circular Discontinuities
Technical Paper
2005-01-0703
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This research focused on the energy absorption capabilities of axially loaded structures fabricated from aluminum alloy extruded tubing with a square cross section. Quasi-static compressive testing was used to examine the effects of dual centrally-located circular hole discontinuities on the energy absorption characteristics of the extrusion test specimens. In addition to previously characterized progressive buckling and global bending modes, collapse modes involving cracking and splitting were observed in several experimental tests. For this reason, finite element models of each test specimen were developed using a material model incorporating damage mechanics. The suitability of using shell elements versus solid elements to model these relatively thick walled structures was investigated. A good correlation was observed between the results of the experimental quasi-static compressive tests and the results of the finite element simulations conducted using LS-DYNA.
Recommended Content
Authors
Citation
Arnold, B. and Altenhof, W., "Finite Element Modeling of the Axial Crushing of AA6061 T4 and T6 and AA6063 T5 Structural Square Tubes with Circular Discontinuities," SAE Technical Paper 2005-01-0703, 2005, https://doi.org/10.4271/2005-01-0703.Also In
References
- Abramowicz W Jones N Dynamic axial crushing of square tubes International Journal of Impact Engineering 1984 2 2 179 208
- Abramowicz W Jones N Transition from initial global bending to progressive buckling of tubes loaded statically and dynamically International Journal of Impact Engineering 1997 19 5-6 415 437
- Krauss CA Laananen DH A parametric study of crush initiators for a thin-walled tube International Journal of Vehicle Design 1994 15 3 4 5 385 401
- Kitagawa Y Hagiwara I Tsuda M Development of a collapse mode control method for side members in vehicle collisions 1991 SAE paper 910809
- Langseth M Hopperstad OS Static and dynamic axial crushing of square thin-walled aluminum extrusions International Journal of Impact Engineering 1996 18 7-8 949 968
- Langseth M Hopperstad OS Berstad T Crashworthiness of aluminum extrusions: validation of numerical simulation, effect of mass ratio and impact velocity International Journal of Impact Engineering 1999 22 829 854
- Annual Book of ASTM Standards ASTM International 2002 3 3.01 60 81
- Arnold B Altenhof W Experimental observations on the crush characteristics of AA6061 T4 and T6 structural square tubes with and without circular discontinuities International Journal of Crashworthiness 2003 9 1 73 87
- Toyama A Hatano K Murakami I Numerical analysis of frontal crash phenomena 1992 SAE paper 920357
- Jones N Structural Impact Cambridge University Press 1989
- Hanssen A Hopperstad OS Langseth M Ilstad H Validation of constitutive models applicable to aluminum foams International Journal of Mechanical Sciences 2001 44 359 406
- Lemaitre J A course on damage mechanics Springer 1992
- Shigley J Mischke C Mechanical Engineering Design McGraw-Hill Inc. 1989
- Reid J Hiser N Friction modelling between solid elements International Journal of Crashworthiness 2004 9 1 65 72