Bending collapse of treble rectangular thin-walled tubes and its application in conceptual design for automobile crashworthiness

Li, Zhaokai; Tian, Yuxing; Bai, Jiantao; Zuo, Wenjie

doi:10.1177/0954407020967869

Cited by 6 publications

(2 citation statements)

References 77 publications

(92 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Section shape has a significant impact on the bending deformation modes and crushing force responses. Based on the global energy equilibrium theory, Bai et al 11 and Li et al 12 derived the theoretical formulations of the bending collapse characteristics for rectangular double-cell and triple-cell tube structures, which are validated by comparing the experimental and calculated results. Xie 13 constructed four kinds of multi-cell square tubes and evaluated their bending response characteristics when subjected to three-point bending loads.…”

Section: Introductionmentioning

confidence: 99%

Energy absorption characteristics of stepped multi-cell columns subjected to transverse loading

Li,

Hu,

Yang

et al. 2024

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Automotive bumper beam is a vital component that shields passenger and vehicle from harm and damage generated by catastrophic collapse. Previous investigations on its bending behavior have largely concentrated on multi-cell tubes with the same length, whereas stepped multi-cell structures have received less attention. In this paper, a novel stepped multi-cell configuration is proposed to improve the energy absorption characteristics of thin-walled structures under transverse loading. The finite element method is employed to analyze the crushing behaviors of the stepped multi-cell tubes. The numerical results reveal that the stepped multi-cell structures (SM2 to SM5) can reduce the initial peak force by 23.44–45.91% while increasing the energy absorption capacity, crush load efficiency, and specific energy absorption by 5.87–29.51, 38.29–139.45, and 5.87–29.51%, respectively, when compared to a conventional square tube (M1). In addition, the effects of wall thickness, section width, load angle, punch radius, and punch shape on the bending behaviors and energy absorption characteristics are examined. The results indicate that these factors have a considerable influence on the deformation features of M1 and SM2, which leads to a significant reduction in their bending energy absorption characteristics. These variables have no influence on the deformation modes of SM3, SM4, and SM5, and they present local indentation deformation with a high energy absorption efficiency. Increasing the number of layers improves the comprehensive performance of stepped multi-cell tubes, with SM5 exhibiting the best energy absorption characteristics under transverse loading.

show abstract

Section: Introductionmentioning

confidence: 99%

Energy absorption characteristics of stepped multi-cell columns subjected to transverse loading

Li,

Hu,

Yang

et al. 2024

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…Several components are subjected to bending loads in lateral car collisions, e.g., the side-door impact beam, the B pillar, and the rocket sill [1][2][3]. An element may fail prematurely, provoking the transmission of impact forces to passengers.…”

Section: Introductionmentioning

confidence: 99%

Bending crashworthiness of bionic thin-walled structures inspired by sugar cane stalks

Estrada

Reynoso

Szwedowicz

et al. 2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Recently, the design of biologically inspired thin-walled structures has been increasingly popular due to the successful adaptation of biological organisms to their environments due to millions of years of evolution. Plants with high bending resistance to counter the effect of wind forces on slender and tall stalks can be found in nature. To this end, this paper investigates the bending crashworthiness of mechanical structures inspired by sugar cane (Saccharum officinarum). The biological patterns of sugar cane were obtained with a Scanning Electron Microscope, and five bionic thin-walled structures (BTWS) were considered. In all cases, the structures were modeled with 6063-T5 aluminum and numerically evaluated using the finite element method using a three-point bending test. The effects of cross-section configuration on the crashworthiness performance of the structure were investigated. Our results show a better version of the BTWSs relative to a typical circular profile. An increase in energy absorption from 15.60% to 40.27% was computed. The best CFE performance was obtained for a structure defined by a central octagon surrounded by smaller trapeziums. Such a structure is therefore highly recommended for bending crashworthiness applications.

show abstract

Numerical and Experimental Research on Energy Absorption Characteristics and Damage Modes of Biomimetic Anti-collision Structures for Micro Aerial Vehicles

Jianxun

2024

Arab J Sci Eng

View full text Add to dashboard Cite

Bending collapse of treble rectangular thin-walled tubes and its application in conceptual design for automobile crashworthiness

Cited by 6 publications

References 77 publications

Energy absorption characteristics of stepped multi-cell columns subjected to transverse loading

Energy absorption characteristics of stepped multi-cell columns subjected to transverse loading

Bending crashworthiness of bionic thin-walled structures inspired by sugar cane stalks

Numerical and Experimental Research on Energy Absorption Characteristics and Damage Modes of Biomimetic Anti-collision Structures for Micro Aerial Vehicles

Contact Info

Product

Resources

About