An investigation into the energy absorption characteristics of a four-spoke steering wheel armature subjected to impact loading

2002 ◽  
Vol 7 (1) ◽  
pp. 97-120 ◽  
Author(s):  
William Altenhof ◽  
Zhanbiao Li ◽  
Nader Zamani
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Steering Wheel ◽  
Absorption Characteristics

Energy absorption characteristics of aluminium/CFRP hybrid beam under impact loading

2016 ◽  
Vol 22 (2) ◽  
pp. 190-201 ◽  
Author(s):  
Sang-Young Kim ◽  
Ju-Won Jeong ◽  
Jun-Yeob Kim ◽  
Hee-Chul Kim ◽  
Dong-Kil Shin ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Hybrid Beam ◽  
Absorption Characteristics

Experimental and numerical study on the crashworthiness evaluation of an intercity coach under frontal impact conditions

2020 ◽  
Vol 234 (13) ◽  
pp. 3026-3041 ◽  
Author(s):  
Mehmet Ali Güler ◽  
Muhammed Emin Cerit ◽  
Sinem Kocaoglan Mert ◽  
Erdem Acar
Keyword(s):  
Finite Element ◽  
Energy Absorption ◽  
Numerical Study ◽  
Absorption Capacity ◽  
The Body ◽  
Steering Wheel ◽  
Energy Absorption Capacity ◽  
Bus Structure ◽  
Bus Body ◽  
Absorption Characteristics

In this study, the energy absorption capacity of a front body of a bus during a frontal crash was investigated. The strength of the bus structure was examined by considering the ECE-R29 European regulation requirements. The nonlinear explicit finite element code LS-DYNA was used for the crash analyses. First, the baseline bus structures without any improvements were analyzed and the weak parts of the front end structure of the bus body were examined. Experimental tests are conducted to validate the finite element model. In the second stage, the bus structure was redesigned in order to strengthen the frontal body. Finally, the redesigned bus structure was compared with the baseline model to meet the requirements for ECE-R29. In addition to the redesign performed on the body, energy absorption capacity was increased by additional energy absorbers employed in the front of bus structure. This study experimentally and numerically investigated the energy absorption characteristics of a steering wheel armature in contact with a deformable mannequin during a crash. Variations in the location of impact on the armature, armature orientation, and mannequin were investigated to determine the effects of the energy absorption characteristics of the two contacting entities.

scholarly journals Energy Absorption Characteristics of Frozen Soil Based on SHPB Test

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Qin-yong Ma ◽  
Dong-dong Ma ◽  
Pu Yuan ◽  
Zhao-ming Yao
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Soil Type ◽  
Incident Energy ◽  
Confining Pressure ◽  
Freezing Temperature ◽  
Frozen Soil ◽  
Absorbed Energy ◽  
Stress States ◽  
Absorption Characteristics

Dynamic compressive tests are performed in three frozen soil types under different stress states at freezing temperatures of −5°C and −15°C with impact loading pressures from 0.3 MPa to 0.6 MPa. The effects of frozen soil type, freezing temperature, impact loading pressures, and stress states on incident energy and energy absorption characteristics, such as absorbed energy and energy absorbency rate, are investigated. The experimental results show that most of the incident energy is reflected back to the incident bar, and incident energy linearly increases with the increase of impact loading pressures. Both absorbed energy and energy absorbency rate are found to be negatively correlated with freezing temperature, and there values under confining pressure state are larger than that under uniaxial condition. The effects of confining pressure on absorbed energy are quite different at different freezing temperatures. In addition, frozen soil type also affects absorbed energy and energy absorbency rate. Meanwhile, impact loading pressure shows an increased effect on the absorbed energy, but it has little effect on energy absorbency rate in the research.

Energy Absorption Characteristics on Aluminum Beams Strengthened with CFRP Laminates under Impact Loading

2005 ◽  
Vol 297-300 ◽  
pp. 1344-1349
Author(s):  
Seung Min Jang ◽  
Yuuki Kawai ◽  
Chiaki Sato
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Displacement Transducer ◽  
Cfrp Laminates ◽  
Three Point Bending ◽  
Reinforced Plastics ◽  
Side Door ◽  
Impact Tester ◽  
The Impact ◽  
Absorption Characteristics

In this paper, the energy absorption characteristics on extruded aluminum box-section strengthened with carbon-fiber-reinforced plastics (CFRP) laminates and/or foam material were investigated under impact loading. Impact tests using a pneumatic impact tester were conducted with the specimens in three-point bending flexure with consideration given to the side-door impact beams in vehicles. The absorbed energy to the specimen during the impact was determined from the loaddisplacement curve, which was obtained from the strain gauge attached to the impactor and the laser displacement transducer. From the results, it was found that the strengthening by externally bonding with CFRP laminates improved the impact-induced energy absorption. Also, the effect of the improvement was clearly seen in the case of the use of filling form material in the aluminum extrusion together with attaching CFRP laminates.

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