This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Energy Absorption Behavior and Application of Thin-walled Box Structure with Higher Strength in Ridgelines
Technical Paper
2016-01-0398
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
To overcome some drawbacks of using AHSS (Advanced High Strength Steel) in vehicle weight reduction, like brittleness, spot weld HAZ (Heat Affected Zone) softening and high cost, a new ridgeline strengthening technology was introduced and applied to the thin-walled structure in this paper. The energy absorption mechanism of thin-walled box structure with selective strengthened ridgelines under axial compressing load was discussed in first section. After this, the formulas of mean crushing force and corresponding energy absorption for square tube were theoretically discussed. To demonstrate prediction capabilities of formulas, a set of FE simulations of square tubes were conducted. Simulation results show that energy absorption capacity of square tube under quasi-static axial crushing load is dramatically improved by selectively strengthening their ridgelines. Finally, the ridgeline strengthening technology was applied to front bumper subsystem made of mild steel and its energy absorption capacity was compared with AHSS front bumper subsystem. From the comparison, it was concluded that the thin-walled box structure with selective strengthened ridgelines can replace the AHSS and could be widely used in the vehicle body structure.
Recommended Content
Authors
Citation
Zheng, Y., Zhu, X., and Dong, X., "Energy Absorption Behavior and Application of Thin-walled Box Structure with Higher Strength in Ridgelines," SAE Technical Paper 2016-01-0398, 2016, https://doi.org/10.4271/2016-01-0398.Also In
References
- Fan , Z.J. , Gui , L.J. , Su , R.Y. Research and development of automotive lightweight technology Journal of Automotive Safety and Energy 2014 5 1 1 16 10.3969/j.issn.1674-8484.2014.01.001
- Zhang , Y.G. , Deng , J.S. , Wei , X.B. et al. A study on performance of high strength steel and application in bodywork Journal of Netshape Forming Engineering 2013 5 4 64 68 10.3969/j.issn.1674-6457.2013.04.017
- Mallick , P.K. Yu , J. N. Materials, design and manufacturing for lightweight vehicles Beijing China Machine Press 2012
- Altan , T. Hot-stamping boron alloyed steels for automotive parts Part I: Process Methods and Uses. Stamping Journal 2006 40 41
- Dykeman , J. , Malcolm , S. , Yan , B. , Chintamani , J. et al. Characterization of Edge Fracture in Various Types of Advanced High Strength Steel SAE Technical Paper 2011-01-1058 2011 10.4271/2011-01-1058
- Hui , W.J. , Zhang , Y.J. , Wu , Z.Y. et al. Spot welding property of Si-Mn type ultrahigh strength hot stamping quenched steel sheet Journal of Iron and Steel Research 2012 24 9 51 55 10.13228/j.boyuan.issn1001-0963.2012.09.007
- Kim , C. H. , Choi , J. K. et al. A study on the Co2 laser welding characteristics of high strength steel up to 1500 MPa for automotive application Journal of Achievements in Materials and Manufacturing Engineering 2010 39 1 79 86
- Perez-Santiago , R. and Billur , E. et al. Hot stamping a B-pillar with tailored properties: experiments and preliminary simulation results International Hot Stamping Conferences Lulea, Sweden 2013
- Ji , M. , Abiko , T. , Okamura , T. Compressive and bending collapse of box structure with different strength in ridgeline (in Japanese) Transactions of Society of Automotive Engineers of Japan 2015 46 3 645 652
- Wierzbicki , T. and Abramowicz , W. On the crushing mechanics of thin-walled structures Journal of Applied Mechanics 1983 50 727 734
- Reid , S. R. , Reddy , T. Y. and Gray , M. D. Static and dynamic axial crushing of foam-filled sheet metal tubes International Journal of Mechanical Sciences 1986 28 295 322 10.1016/0020-7403(86)90043-3
- Meng , Q. , Al-Hassani , S. T. S. and Soden , P. D. Axial crushing of square tubes International Journal of Mechanical Sciences 1983 25 9/10 747 773 10.1016/0020-7403(83)90080-2
- Calladine , C.R. Theory of Shell Structure Cambridge Cambridge University Press 1983
- Yu , T. X. , Lu , G.X. Hua Y. L. Energy Absorption of Structures and Materials Beijing Chemical Industry Press 2006
- Abramowicz , W. and Jones , N. Dynamic progressive buckling of circular and square tubes International Journal of Impact Engineering 1986 4 4 243 270 10.1016/0734-743X(86)90017-5
- Gui , L.J. , Fan , Z.J. , Wang , Q.C. Energy-absorption properties of foam-filled circular tubes subjected to dynamic axial crushing J Tsinghua Univ (Sci & Tech) 2004 44 5 709 712
- Wang , Q.C. , Fan , Z.J. Improvement in analysis of quasi-static collapse with LS-DYNA Mechanics in Engineering 2003 25 3 20 23
- Li , J.C. Research on crashworthiness of a passenger car’s bumper Jilin Province Jilin University 2014
- Li , F.C. , Zhu X.C. , Dong , X.Q. et al. Lightweight Research of Bumper and Crash Box Based on Components Test Automobile Technology 2014 3 5 9
- Kecman , D. Bending collapse of rectangular and square tube section tubes International Journal of Mechanical Science 1983 25 9/10 623 636 10.1016/0020-7403(83)90072-3