Experimental Investigation of the Rubber-Filled Tubes in the Tube Inversion Process

In this paper, the effects of the fillers in the rubber-filled circular tubes are investigated during the inversion process of the tubes under the axial loading, experimentally. For this purpose, a comparison between the experimental results of the empty and rubber filled circular tubes was performed. The inversion tests were carried out on the rubber-filled and empty brazen circular tubes. A pair of die and punch was prepared as the fixtures. All the inversion tests are performed under quasi-static axial loading. The experimental results of the filled tubes show a considerable increase in the energy absorption and the axial force comparing with the empty tubes, during the tube inversion process. The filler material in the circular tubes was supplied from the wastage of the tire producer companies. This is one of the best applications of the tire wastage that has good environmental and economical advantages. The tire wastage filled-tubes are introduced as a good energy absorber that can be used in the energy absorption mechanisms such as automobile bumpers, crashing barriers of roadsides, and aerospace.

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Effects of triggering and polyurethane foam on energy absorption of thin-walled circular tubes under the inversion process

Journal of Energy Storage ◽

10.1016/j.est.2019.101071 ◽

2020 ◽

Vol 27 ◽

pp. 101071

Author(s):

Mohammad Javad Rezvani ◽

Hamidreza Souzangarzadeh

Keyword(s):

Energy Absorption ◽

Polyurethane Foam ◽

Inversion Process ◽

Circular Tubes ◽

Thin Walled

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Mobilization of Fully Plastic Moment Capacity for Pressurized Pipes

Journal of Offshore Mechanics and Arctic Engineering ◽

10.1115/1.2829573 ◽

1999 ◽

Vol 121 (4) ◽

pp. 237-241 ◽

Cited By ~ 19

Author(s):

M. Mohareb ◽

D. W. Murray

Keyword(s):

Internal Pressure ◽

Axial Force ◽

Yield Criterion ◽

Axial Loading ◽

Experimental Results ◽

Moment Capacity ◽

Interaction Diagram ◽

Von Mises ◽

Force Pressure ◽

Good Agreement

An analytical expression is derived for the prediction of fully plastic moment capacity of pipes subjected to axial loading and internal pressure. The expression is based on the von Mises yield criterion. The expression predicts pipe moment capacities that are in good agreement with full-scale experimental results. A universal nondimensional moment versus effective axial force-pressure interaction diagram is developed for the design of elevated pipe lines.

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Experimental Investigation into the Buckling Behavior of an Advanced Grid Stiffened Plate by a Fringe Projection Profilometry System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.217-218.1153 ◽

2011 ◽

Vol 217-218 ◽

pp. 1153-1158 ◽

Cited By ~ 1

Author(s):

Ming Fa Ren ◽

Qi Zhong Huang ◽

Hao Ran Chen

Keyword(s):

Experimental Investigation ◽

Failure Mode ◽

Composite Plate ◽

Axial Loading ◽

Experimental Results ◽

Fringe Projection ◽

Stiffened Plate ◽

Local Skin ◽

Buckling Behavior ◽

Fringe Projection Profilometry

This article demonstrates the buckling behavior of an advanced grid stiffened (AGS) composite plate under an axial loading. The experimental results acquired by a fringe projection profilometry system shows that the buckling of the AGS plate would gradually evolved from a local skin buckling to a global ribs buckling during the experiment. Kinds of failure mode would arise while the loading increasing, though an impressive peak loading was recorded before the AGS plate was crush. The whole-field deformation of the AGS plate during the experiment was retrieved by the fringe projection profilometry system.

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Automobile Box Structure Optimization and Simulation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.591-593.737 ◽

2012 ◽

Vol 591-593 ◽

pp. 737-740

Author(s):

Wen Long Yin ◽

Guo Ping Yang

Keyword(s):

Energy Absorption ◽

Axial Force ◽

Carrying Capacity ◽

Structure Optimization ◽

Experimental Results ◽

Improvement Program ◽

Box Structure ◽

Force Variation ◽

Simulation Results ◽

Optimization And Simulation

This paper mainly designs several projects to analyze the deformation of crash box. Through analyzing the crushing distance, energy absorption and axial force variation, which is under different schemes and low crash speed, gets that: a front crash box slot is necessary; Filling foam allows the specimen to absorb more energy and makes the carrying capacity changing more stably. Finally, we compared simulation results with the experimental results, and on this basis, providing improvement program means.

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Dynamic axial crushing of bitubular tubes with curvy polygonal inner-tube sections

International Journal of Computational Materials Science and Engineering ◽

10.1142/s2047684117500245 ◽

2017 ◽

Vol 06 (03) ◽

pp. 1750024 ◽

Cited By ~ 1

Author(s):

Naveed Ahmed ◽

Pu Xue ◽

Naeem Zafar

Keyword(s):

Energy Absorption ◽

Cross Section ◽

Axial Loading ◽

Outer Tube ◽

Experimental Results ◽

Tube Section ◽

Crushing Force ◽

Tube Shape ◽

Structural Configurations ◽

Deformation Modes

Bitubular structural configurations, where the outer tube is circular, square and curvy square in shape while the inner-tube section is curvy triangular, square and hexagonal in different proposed configurations, are numerically crushed under dynamic axial loading. The crashworthiness effectiveness for changing inner-tube polygonal cross-section for each of the outer tube sections is studied and compared with changing outer tube shape. The deformation plots and energy absorption (EA) parameters such as peak crushing force (PCF) mean crushing force (MCF), energy absorption and crush force efficiency for each case are evaluated. Most of the configurations showed ovalization with low PCF and MCF and moderate crush force efficiency. Afterwards, effects of [Formula: see text] and [Formula: see text] on deformation modes and EA are demonstrated by selecting one of the configurations from each group using published experimental results.

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Energy absorption of thin-walled circular tubes with gradient thickness under oblique loads

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406220912437 ◽

2020 ◽

Vol 234 (16) ◽

pp. 3207-3220 ◽

Cited By ~ 1

Author(s):

Peng Wang ◽

Yuan Zhang ◽

Fan Yang ◽

Kun Tian ◽

Qi Zhao ◽

...

Keyword(s):

Finite Element ◽

Energy Absorption ◽

Loading Condition ◽

Axial Loading ◽

Deformation Mode ◽

Circular Tubes ◽

Oblique Loading ◽

Nonuniform Thickness ◽

Absorption Performance ◽

Thin Walled

Introducing nonuniform thickness has shown promising potential in enhancing the energy absorption of thin-walled tubes. However, existing studies were focused on the axial loading, with little attention being paid to the oblique loading condition. In this paper, the energy absorption performance and the deformation modes of the circular tubes with gradient thicknesses under oblique loads are investigated. Finite element simulations and experiments were carried out for both uniform-thick and gradient-thick tubes under the axial and oblique loads, and satisfactory agreement was achieved betweent the numerical and the experimental results. The validated finite element models were used to investigate the effects of the thickness gradient and loading angle on the deforamtion modes and the energy absorption. The results highlight the advantages of the gradient-thickness tubes in improving the energy absorption performance under the oblique loading condition, especially at a larger loading angle. A novel progressive bending deformation mode was observed for the tube with large thickness gradient at a loading angle larger than 15°, which is beneficial for the energy absorption performance.

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Multi-Objective Optimization for Energy Absorption of Carbon Fiber-Reinforced Plastic/Aluminum Hybrid Circular Tube under Both Transverse and Axial Loading

Journal of Materials Engineering and Performance ◽

10.1007/s11665-020-04941-4 ◽

2020 ◽

Vol 29 (9) ◽

pp. 5609-5624

Author(s):

Qihua Ma ◽

Boyan Dong ◽

Yibin Zha ◽

Jiarui Sun ◽

Xuehui Gan ◽

...

Keyword(s):

Carbon Fiber ◽

Energy Absorption ◽

Circular Tube ◽

Axial Loading ◽

Carbon Fiber Reinforced Plastic ◽

Multi Objective Optimization ◽

Fiber Reinforced ◽

Fiber Reinforced Plastic ◽

Multi Objective ◽

Reinforced Plastic

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Crush Response of Polyurethane Foam-Filled Aluminium Tube Subjected to Axial Loading

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.875-877.534 ◽

2014 ◽

Vol 875-877 ◽

pp. 534-541 ◽

Cited By ~ 1

Author(s):

Chawalit Thinvongpituk ◽

Nirut Onsalung

Keyword(s):

Energy Absorption ◽

Polyurethane Foam ◽

Testing Machine ◽

Axial Loading ◽

Asymmetric Mode ◽

Pu Foam ◽

Universal Testing ◽

Collapse Mode ◽

Empty Tube ◽

Foam Filled

In this paper, the experimental investigation of polyurethane (PU) foam-filled into circular aluminum tubes subjected to axial crushing was presented. The purpose of this study is to improve the energy absorption of aluminium tube under axial quasi-static load. The aluminium tube was made from the AA6063-T5 aluminium alloy tubes. Each tube was filled with polyurethane foam. The density of foam was varied from 100, 150 and 200 kg/mP3P including with empty tube. The range of diameter/thickness (D/t) ratio of tube was varied from 15-55. The specimen were tested by quasi-static axial load with crush speed of 50 mm/min using the 2,000 kN universal testing machine. The load-displacement curves while testing were recorded for calculation. The mode of collapse of each specimen was analyzed concerning on foam density and the influence of D/t ratio. The results revealed that the tube with foam-filled provided significantly increment of the energy absorption than that of the empty tube. While the density of foam and D/t ratios increase, the tendency of collapse mode is transformed from asymmetric mode to concertina mode.

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