scholarly journals Proactive regulation of axial crushing behavior of thin-walled circular tube by gradient grooves

2016 ◽  
Vol 108-109 ◽  
pp. 49-60 ◽  
Author(s):  
Yanpeng Wei ◽  
Zhe Yang ◽  
He Yan ◽  
Yacong Guo ◽  
Xianqian Wu ◽  
...  
Keyword(s):  
Circular Tube ◽  
Axial Crushing ◽  
Thin Walled ◽  
Crushing Behavior

scholarly journals Axial Crushing Behavior of Aluminum Square Tube with Origami Pattern

2016 ◽  
Vol 10 (2) ◽  
pp. 90 ◽  
Author(s):  
Prescilla Christy Albert ◽  
Amir Radzi Ab Ghani ◽  
Mohd Zaid Othman ◽  
Ahmad Mujahid Ahmad Zaidi
Keyword(s):  
Numerical Simulation ◽  
Energy Absorption ◽  
Testing Machine ◽  
Axial Crushing ◽  
Geometrical Shapes ◽  
Thin Walled Tube ◽  
Absorption Performance ◽  
Thin Walled ◽  
Crushing Behavior ◽  
Aluminum Alloy 6063

<span style="font-size: 10pt; font-family: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;" lang="EN-US">The study of axial crushing behavior is important in designing crashworthy structures especially in automotive applications. The axial crushing of thin-walled tube has better energy absorption capability. Thus, introducing milled geometrical shapes on thin-walled tube may improve the energy absorption performance. The improvement of the crush response is determined through the reduction of the Initial Peak Force (IPF) and the increase of the Specific Energy Absorption (SEA). This was done by employing origami pattern milled on the surface of thin-walled square tube which was investigated experimentally and numerically. The material used for the tube was aluminum alloy 6063-T5. The simulation results were validated by experiments which were conducted using <span style="text-transform: uppercase;">Instron</span> 3382 Universal Testing Machine and <span style="text-transform: uppercase;">Instron Dynatup</span> 8250 Drop Hammer Machine. The numerical simulation then progressed by varying parameters such as dimensions and configurations of the origami pattern on the square tube. ABAQUS finite element (FE) software was used to conduct the numerical simulation. The result of employing the origami square pattern on square tube is expected to improve the crush response by lowering the IPF and increasing the SEA. The obtained results were then compared with the conventional square tube where the origami pattern on square tube enhanced the crush performance.</span>

scholarly journals Energy Absorption Characteristics of a CFRP-Al Hybrid Thin-Walled Circular Tube under Axial Crushing

Aerospace ◽  
2021 ◽  
Vol 8 (10) ◽  
pp. 279
Author(s):  
Rongchao Jiang ◽  
Zongyang Gu ◽  
Tao Zhang ◽  
Dawei Liu ◽  
Haixia Sun ◽  
...  
Keyword(s):  
Finite Element ◽  
Energy Absorption ◽  
Circular Tube ◽  
Finite Element Models ◽  
Axial Crushing ◽  
Circular Tubes ◽  
Absorption Performance ◽  
Thin Walled ◽  
Entropy Weighted ◽  
Absorption Characteristics

Thin-walled tubes have gained wide applications in aerospace, automobile and other engineering fields due to their excellent energy absorption and lightweight properties. In this study, a novel method of entropy-weighted TOPSIS was adopted to study the energy absorption characteristics of a thin-walled circular tube under axial crushing. Three types of thin-walled circular tubes, namely, aluminum (Al) tubes, carbon-fiber-reinforced plastics (CFRP) tubes and CFRP-Al hybrid thin-walled tubes, were fabricated. Quasi-static axial crushing tests were then carried out for these specimens, and their failure modes and energy absorption performance were analyzed. The CFRP material parameters were obtained through tensile, compression and in-plane shear tests of CFRP laminates. The finite element models for the quasi-static axial crushing of these three types of circular tubes were established. The accuracy of the finite element models was verified by comparing the simulation results with the test results. On this basis, the effects of the geometric dimension and ply parameters of a CFRP-Al hybrid thin-walled circular tube on the axial crushing energy absorption characteristics were studied based on an orthogonal design and entropy-weighted TOPSIS method. The results showed that Al tube thickness, CFRP ply thickness and orientation have great effect on the energy absorption performance of a CFRP-Al hybrid thin-walled circular tube, whereas the tube diameter and length have little effect. The energy absorption capability of a CFRP-Al hybrid tube can be improved by increasing the thickness of the Al tube and the CFRP tube as well as the number of ±45° plies.

scholarly journals Crushing behavior of a thin-walled circular tube with internal gradient grooves fabricated by SLM 3D printing

2017 ◽  
Vol 111 ◽  
pp. 1-8 ◽  
Author(s):  
Zhe Yang ◽  
Yangyang Yu ◽  
Yanpeng Wei ◽  
Chenguang Huang
Keyword(s):  
3D Printing ◽  
Circular Tube ◽  
Thin Walled ◽  
Crushing Behavior

Experimental analysis of additively manufactured thin-walled heat-treated circular tubes with slits using AlSi10Mg alloy by quasi-static axial crushing test

2019 ◽  
Vol 138 ◽  
pp. 404-414 ◽  
Author(s):  
Ahmed S. Mohamed ◽  
Othman Laban ◽  
Faris Tarlochan ◽  
Sami E. Al Khatib ◽  
Mohammed S. Matar ◽  
...  
Keyword(s):  
Experimental Analysis ◽  
Axial Crushing ◽  
Circular Tubes ◽  
Heat Treated ◽  
Thin Walled
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