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DYNAMIC AXIAL CRUSH OF AUTOMOTIVE RAIL- SIZED .

DYNAMIC AXIAL CRUSH OF AUTOMOTIVE RAIL-SIZED COMPOSITE TUBES PART 3: BRAIDED VS. ... reinforcements made principally from carbon fiber was part of a multi-aspect crush tube program ... SEA (kJ/kg) is defined here as the net energy dissipated in the process of crushing the test. 4 specimen divided by the product of the maximum crush distance and ...

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Energy-absorbing effectiveness factor

the dimensionless parameter has been examined for the static and dynamic axial crushing behaviour of thin-walled sections. The influence of foam fillings and the stiffening of circular and square tubes is examined. It transpires that, according to the energy-absorbing effectiveness factor, an axially crushed

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Dynamic Axial Crushing of Origami Crash Boxes | Request PDF

Dynamic Axial Crushing of Origami Crash Boxes. ... Some problems on the axial crushing of multi-cells. ... A simplified analysis is presented for evaluating the dynamic crushing strength of thin ...

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Structural Optimization of Thin-Walled Tubular Structures ...

Explicit nonlinear finite element code LS-DYNA is used to perform dynamic simulations of axial crushing of square tubes. A linear elastic, piecewise linear plastic material (*MAT24) is used for modeling steel tubes with properties shown in Table 1. Generally, thin-walled structures under axial compression are modeled with plane stress shell ...

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QUASI-STATIC AXIAL CRUSHING BEHAVIOR OF ALUMINUM .

The axial crushing behavior of empty and Al close-cell foam-filled Al multi-tube designs (hexagonal and square) and E-glass woven fabric polyester composite and Al hybrid tubes were investigated through quasi-static compression testing.

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Static and dynamic axial crushing of Al/CRFP hybrid tubes ...

This paper presents experimental and numerical studies on the axial crushing of the Al, CFRP and Al/CFRP hybrid square tubes with sing-cell and multi-cell sections. Static and dynamic axial crush tests are conducted for the tubes first. The crushing behaviors and deformation mechanism of the tubes are then investigated.

    Author: Zhixin Huang, Xiong Zhang, Chongyi YangGet Price

DYNAMIC AXIAL CRUSH OF AUTOMOTIVE RAIL- SIZED .

In total 134 dynamic axial crush tests were conducted of 88.9x88.9 mm tubes with 2.54 mm thick walls. A 45° bevel on the lead end of each tube served as the crush initiator. Common to braids and weaves was that consistent and desirable dynamic axial crush response was demonstrated for almost all parameter configurations.

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Quasi-Static Axial Compression of Origami Crash Boxes ...

Abramowicz, W. [1983] " The effective crushing distance in axially compressed thin-walled metal columns," International Journal of Impact Engineering 1(3), 309–317. Crossref, Google Scholar; Abramowicz, W. and Jones, N. [1984] " Dynamic axial crushing of square tubes," International Journal of Impact Engineering 2(2), 179–208.

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Dynamic axial crushing of origami crash boxes ...

Nov 01, 2016 · Read "Dynamic axial crushing of origami crash boxes, International Journal of Mechanical Sciences" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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JCAMECH

for material under an axial load (static and dynamic). The proposed approach which is based on SFE theory, is capable of predicting static and dynamic mean crushing forces, as well as collapse variables (crushing wavelength 2𝐻 and curvature radius ), by considering all important aspects in modeling which have been neglected so far.

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Quasi-Static Axial Compression of Origami Crash Boxes ...

Abramowicz, W. [1983] " The effective crushing distance in axially compressed thin-walled metal columns," International Journal of Impact Engineering 1(3), 309–317. Crossref, Google Scholar; Abramowicz, W. and Jones, N. [1984] " Dynamic axial crushing of square tubes," International Journal of Impact Engineering 2(2), 179–208.

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International Journal of Impact Engineering - MIT

Dynamic axial crushing Implicit time integration Bathe method 3D-shell element Crash tube abstract The axial crushing and crashing of thin-walled high-strength steel tubes is performed using 3D-shell finite elements and an implicit time integration scheme. The calculated results are compared with

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NUMERICAL DYNAMIC AXIAL CRUSHING OF BI-TUBULAR .

Thin walled multi-cell columns are highly efficient in energy absorption under axial crushing loads. In this study, the dynamic axial crushing of bi-tubular metallic cylindrical tubes is numerically studied. Proposed Bi-tubular tubes are unique in the feature as the inner tube is

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Static and dynamic axial crushing of self-locking multi ...

A new type of self-locking multi-cell structure fabricated by assembling four C-shaped open sections is proposed in this paper. Quasi-static and dynamic experimental tests are performed to investigate the axial crush resistance and energy absorption characteristics of this type of structures.

EXPERIMENTAL AND NUMERICAL STUDY ON AXIAL .

EXPERIMENTAL AND NUMERICAL STUDY ON AXIAL COMPRESSION OF METAL TUBES WITH HOLES 1JAFAR ROUZEGAR, 2MOHAMMAD ELAHI 1,2Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, Iran E-mail: [email protected]

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Multi-CRUSH - EVOCD

Axial Crushing of Multi-Cell Multi-Corner Tubes An analytical formula for the prediction of mean crush force of multicorner multi-cell tubes is derived based on the super folding element theory [1], [2], [3] .

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Static and dynamic axial crushing of prismatic thin-walled ...

In this paper, a novel approach is proposed to investigate the progressive collapse damage of prismatic thin walled metal columns with different regular cross sections, under the action of axial quasi-static and impact loads. The present work mainly focuses on implementation of some important factors which have been neglected in other studies.

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Dynamic axial crushing of bitubular tubes with curvy ...

Langseth, M. and Hopperstad, O. S. [1996] " Static and dynamic axial crushing of square thin walled aluminium extrusions," Int. J. Impact Eng. 18 ... Manmohan, D. G. [2015] " Deformation, energy absorption and crushing behavior of single, double and multi .

    Author: Naveed Ahmed, Pu Xue, Naeem Zafar[PDF]Get Price

Dynamic and Quasi-Static Testing and Modeling of Hot ...

then spot welded together to form axial crush rails. Quasi-static testing was performed using a hydraulic press, and dynamic testing was performed on the University of Waterloo (UW) crash sled. A numerical model of the dynamic experiment was cr eated to predict the crus h behaviour, including prediction of spot weld failure.

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Theoretical prediction and numerical simulation of multi ...

Nov 01, 2006 · Numerical simulations of square multi-cell sections subjected to dynamic axial crushing were conducted and an enhancement coefficient was introduced to account for the inertia effects for aluminum alloy AA6060 T4. The analytical solutions show .

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Experimental and numerical studies on the quasi-static and ...

the effect of layering on the overall performance of multi-layer corrugated metal core sandwiches has not been investigated. In this study, the crushing responses of multi-layer 1050 H14 trapezoidal aluminum corrugated core sandwich structures were determined at quasi-static (10 3 and 10 1 s 1) and dynamic strain rates (40 s 1),

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