Crashworthiness research on S-shaped front rails made of steel-aluminum hybrid materials

被引：43
作者：
Zhou, Yunjiao [1 ,2 ]
Lan, Fengchong [1 ,2 ]
Chen, Jiqing [1 ,2 ]
机构：
[1] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Guangdong Prov Key Lab Automot Engn, Guangzhou 510640, Guangdong, Peoples R China
来源：
THIN-WALLED STRUCTURES | 2011年 / 49卷 / 02期
关键词：
Crashworthiness; Steel-aluminum hybrid; S-shaped front rail; Advanced high strength steel; Aluminum alloys; THIN-WALLED SECTIONS; TOP-HAT; ALLOYS; SHEETS; FRAME;
D O I：
10.1016/j.tws.2010.10.007
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In the paper, crashworthiness of the S-shaped rail extracted from the frontal frame in a car is studied. In order to reduce the peak impact force while increasing the total absorbed energy, the hybrid materials are employed in that rail, where aluminum alloy is used for its front part and advanced high strength steel (AHSS) for its back part. By designing 16 experiments based on orthogonal experiment, the effect of five influence factors with four levels on the crash performance of the steel-aluminum hybrid S-shaped front rail is emphatically investigated. These influence factors include the different material types of aluminum alloy and AHSS, the sheet thicknesses of the two parts, and length proportion for the aluminum part. The AHSS includes dual-phase (DP) steel, transformation induced plasticity (Trip) steel and Mart steel; the aluminum alloy series include 5000 and 6000 series. The research result shows that the use of steel-aluminum hybrid materials can reduce the peak impact force and the total weight for the S-shaped front rail, while the total absorbed energy can be greatly increased, so the crashworthiness and lightweight of the S-shaped front rail are significantly improved. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：291 / 297
页数：7
相关论文
共 19 条
[1]  
ABE K, 1990, 900461 SAE
[2]   Joinability of aluminium alloy and mild steel sheets by self piercing rivet [J].
Abe, Y. ;
Kato, T. ;
Mori, K. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 177 (1-3) :417-421
[3]   Friction stir processed AA5182-O and AA6111-T4 aluminum alloys. Part 1: electron backscattered diffraction analysis [J].
Agarwal, Sumit ;
Briant, Clyde L. ;
Hector, Louis G. ;
Chen, Yen-Lung .
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2007, 16 (04) :391-403
[4]   FINITE ELEMENT ANALYSIS OF COLLAPSE OF FRONT SIDE RAILS WITH NEW TYPES OF CRUSH INITIATORS [J].
Eren, I. ;
Gur, Y. ;
Aksoy, Z. .
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY, 2009, 10 (04) :451-457
[5]   A comparison of the mechanical behaviour of self-piercing riveted and resistance spot welded aluminium sheets for the automotive industry [J].
Han, L. ;
Thornton, M. ;
Shergold, M. .
MATERIALS & DESIGN, 2010, 31 (03) :1457-1467
[6]   Effect of the cross-sectional shape of hat-type cross-sections on crash resistance of an "S"-frame [J].
Kim, HS ;
Wierzbicki, T .
THIN-WALLED STRUCTURES, 2001, 39 (07) :535-554
[7]  
Long Jiangqi, 2008, Chinese Journal of Mechanical Engineering, V44, P27, DOI 10.3901/JME.2008.06.027
[8]  
Maggi S, 2008, P INT C NEW DEV MET, V1, P61
[9]   Fatigue crack growth in friction stir welds of 6082-T6 and 6061-T6 aluminium alloys: A comparison [J].
Moreira, P. M. G. P. ;
de Jesus, A. M. P. ;
Ribeiro, A. S. ;
de Castro, P. M. S. T. .
THEORETICAL AND APPLIED FRACTURE MECHANICS, 2008, 50 (02) :81-91
[10]  
OHKAMI Y, 1990, 900460 SAE
12