Energy absorption performance on multilayer expanded metal tubes under axial impact

Jahromi, A. Ghodsbin; Hatami, Hossein

doi:10.1016/j.tws.2017.03.005

Cited by 46 publications

(17 citation statements)

References 24 publications

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“…The accelerometer was connected to a computer, which showed the acceleration–time diagram. For measuring the degree of displacement from the accelerometer data, we integrated twice [20].…”

Section: Methodsmentioning

confidence: 99%

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Experimental and numerical investigation of lattice core sandwich beams under low-velocity bending impact

Taghipoor

Nouri

2018

Jnl of Sandwich Structures & Materials

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Section: Methodsmentioning

confidence: 99%

“…Jahromi and Hatami [20] studied the E a performance on multilayer expanded metal tubes under axial impact by using drop hammer test. They found that the tubes with zero degree angle cells had a symmetric collapse mechanism and increase in the size of the cells decreased the peak crushing force and E a capacity.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation of lattice core sandwich beams under low-velocity bending impact

Taghipoor

Nouri

2018

Jnl of Sandwich Structures & Materials

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“…The expression of SEA [24] is shown by trueSEA=EAm,where m is the mass of the destroyed sample and EA [25] is the total energy absorbed by the sample, which can be obtained from trueEA=∫0sFsds,where F ( s ) is the instantaneous reacting force during bending and s is the bending displacement.…”

Section: Materials and Experimentsmentioning

confidence: 99%

Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo

Zou

Song

et al. 2018

Applied Bionics and Biomechanics

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This study conducted quasistatic three-point bending tests to investigate the effect of bamboo node on the energy absorption, bending, and deformation characteristics of bamboo. Results showed that the node had a reinforcing effect on the energy absorption and bending strength of the bamboo culm subjected to bending load. The experimental results demonstrated that nodal samples (NS) significantly outperform internodal samples without node (INS). Under the three-point bending load, the main failure mode of bamboo is the fracture failure. The node also showed split and fracture prevention function obviously. Based on that, a series of bionic bumper beams were designed inspired by the bamboo node. The FEM results indicated that the performance of bionic bumpers was better than that of a normal bumper with regard to bending strength, energy absorption, and being lightweight. In particular, the bionic bumper beam has the best performance with regard to bending, energy absorption, and being lightweight compared with the normal bumper under pole impact. The characteristic of the bionic bumper beam is higher than that of the normal bumper beam by 12.3% for bending strength, 36.9% for EA, and 31.4% for SEA; moreover, there was a mass reduction of 4.9%, which still needs further optimization.

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“…It is a general rule that it obtains from the conventional static wear-resistant experimental conditions [17]. Under high-velocity impacting load, the researchers searched for a method to improve the crashworthiness of expanded metal tubes by theoretical analysis, numerical simulation and performance measurement [18][19][20][21]. Nevertheless, whether the wear resistance of high manganese steel can be improved by increasing the overall or surface hardness, especially the initial wear resistance, it remains to be confirmed by further experiments.…”

Section: Introductionmentioning

confidence: 99%

Initial wear characteristics of aging‐treated ZG120Mn13 steel under steel shot at high‐velocity impact

Cui

Lui

Ding

et al. 2020

Materialwissenschaft Werkst

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The initial wear of high manganese steel parts in practical use is related to their original hardness, external loading, surface machining accuracy, and the change of shape and dimension. The paper studies the size and coverage percentage of impact scars on the ZG120Mn13 high carbon high manganese steel surface, as well as the variation of weight loss under high‐velocity steel shot by changing aging treatment process. Meanwhile, the relationship between the hardness of aging ZG120Mn13 steel and its initial wear characteristics is discussed. The results show that after 5 seconds, the size and coverage percentage decreased with the increment of hardness. However, in any different period, the wear mass losses of the steel increase with increment of hardness, and increase rapidly first, then slowly. Therefore, under high‐velocity impact loading, the increment of hardness is beneficial to improving initial wear‐resistance from the perspective of the deformation, but is conducive to improving the resistance from the mass loss. Consequently, we should not only emphasize the high hardness merely, but also consider the changing law of weight loss and initial deformation comprehensively, so that we can achieve the best initial wear resistance when the high manganese steel has the appropriate hardness.

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Energy absorption performance on multilayer expanded metal tubes under axial impact

Cited by 46 publications

References 24 publications

Experimental and numerical investigation of lattice core sandwich beams under low-velocity bending impact

Experimental and numerical investigation of lattice core sandwich beams under low-velocity bending impact

Bionic Design of the Bumper Beam Inspired by the Bending and Energy Absorption Characteristics of Bamboo

Initial wear characteristics of aging‐treated ZG120Mn13 steel under steel shot at high‐velocity impact

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