9 Yausi, Y. 2000 Dynamic axial crushing of multi-layer honeycomb panels and impact tensile behavior of the component members, International Journal of Impact Engineering , Vol. 24, pp.659 671.
Apr 01, 1999 An approximate theoretical analysis is presented for the mean crushing forces generated during the dynamic axial loading of top-hat and double-hat sections. The theoretical predictions compare favourably with experimental results reported in a companion article on spot-welded mild steel sections and with the empirical equations and theoretical ...
White, M. D. and Jones, N., Experimental study into the energy absorbing characteristics of top-hat and double-hat sections subjected to dynamic axial crushing, Proceedings Institution of Mechanical Engineers, 213 D, 259278, 1999. CrossRef Google Scholar
Oct 30, 2019 Thin-walled square steel tubes are part of automobile structures, used as impact energy absorbers on crush boxes. Under axial crushing, such tubes sometimes produces unpredictable folding forms. There are three modes of dynamic axial crushing folding forms the symmetric collapse mode the asymmetric mixed collapse mode A and the asymmetric mixed collapse mode B.
mechanism is used to predict the dynamic axial crushing analysis on the tube. These theoretical analyses can also can be implemented in different crush initiator positions. Two types of cross section ch were used in this study specimen A ch 60.42 and specimen B ch 45.69.
The effect of axial impact on thin-walled circular tubes, which are reinforced externally by a glass fibre reinforced plastic FRP composite, is studied in this paper. The influence of circumferential reinforcement on the static and dynamic crushing behaviour of steel tubes is examined.
Oct 14, 2020 Further, the crushing response of the double-hat multi-corner column then compared with a square column, a square double-hat column, a multi-corner column with 12 corners, and a multi-corner column with 20 corners. ... Wang QA, Fan Z, Gui L 2006 A theoretical analysis for the dynamic axial crushing behaviour of aluminium foam-filled hat sections.
a Axial crush rail specimens b Boss that is clamped to impacted end of the rail 6. 2.2. Dynamic Axial Crush Dynamic axial crush experiments were performed using the Seattle Safety D780-3.7 crash sled at the University of Waterloo UW, shown in Figure 2. For TWB parts, the Usibor 1500-AS end of
Dynamic Axial Crush Analysis and Design Optimization of a Square Multi-Cell Thin-Walled Tube With Lateral Variable Thickness, ... Crushing Behavior and Multi-Objective Optimization on the Crashworthiness of Sandwich Structure With Star-Shaped Tube in the Center,
dynamic axial crushing behaviors of thin-walled sections. ... Also, hexagonal and octagonal sections in a multi-cell configuration absorbed the greatest amounts of energy per unit of mass.
Aug 04, 2016 Herein, a detailed review of the past studies carried out on crushing and energy absorption behaviour of hollow and foam filled tubes under axial compression is presented. Importance of such investigation is discussed for understanding the research need and to develop suitable alternatives. The focus of review is the deformation mechanism and energy absorption of hollow circular and
DOI 10.22059JCAMECH.2018.251558.237 Corpus ID 54776627. Static and dynamic axial crushing of prismatic thin-walled metal columns articleMalekshahi2019StaticAD, titleStatic and dynamic axial crushing of prismatic thin-walled metal columns, authorA. Malekshahi and K. H. Shirazi and M. Shishesaz, journalApplied and Computational Mechanics, year2019, volume50, pages27
The dynamic axial crushing behaviour and the interactive effect due to foam filling of foam-filled hat sections was predicted theoretically by Qing-chun Wang et al 5, 6. They improved the ...
Mar 24, 2016 In this study, six multi-cell HBTSs subjected to axial dynamic loading were investigated using FE simulations. Figure 3 illustrates the loading condition and the cross-section of the six-cell HBTS. One end of the HBTS is fixed to a rigid wall and the other end is impacted by a punch with a mass of 1000 kg at an initial velocity of 15 ms.
A method is developed for predicting crush behavior of multicorner prismatic columns subjected to an axial compressive load. The corner element of an arbitrary angle is analyzed first using rigorous methods of structural plasticity with finite deformations and rotations.
Feb 28, 2018 In this paper, progressive crushing of prismatic multi-corner thin walled metal tubes under quasi-static axial load is investigated in detail. The novelty of the paper is mainly in considering strain hardening effect during plastic deformation instead of rigid plastic model and also the effect of curvature in forming the folds instead of ...
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 conical in shape and outer tube is circular, along with ...
Crushing deformation of thin-walled multi-corner columns under quasi-static and dynamic axial loads is principally governed by the collapse mechanism of the corner sections. Following a careful examination of the folding mechanisms present in a deforming corner section of various tubes made of ductile materials, Wierzbicki and Abramovicz 6 ,
Modeling of Dynamic Axial Crushing of Thin Walled Structures by LS-DYNA and Genetic Programming. August 2017 Authors Mojtaba Hasanlu. University of Guilan ...
Quasi-static and dynamic axial crushing tests have been performed on circular thin-walled sections made of three materials 304 stainless steel, aluminium alloy 6063-T6, and mild steel. The tests were arranged to investigate the mode transitions during the impact crushing of thin-walled tubes and the three materials were chosen for their ...
Dynamic axial crushing of square tubes. International Journal of Impact Engineering, 1984. Norman Jones. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. READ PAPER. Dynamic axial crushing of square tubes. Download.
Twenty-five quasi-static and forty-three dynamic axial crushing tests have been performed on square and circular stainless steel type 304 specimens in order to investigate the transitions between dynamic progressive buckling and global bending of thin-walled tubes. The columns consisted of
Static and dynamic axial crushing of prismatic thin-walled metal columns Journal of Computational Applied Mechanics 3 50 1 2019 27-40 1.87 MB Research Paper DOI 10.22059jcamech.2018.251558.237
Nov 27, 2014 Dynamic axial crushing of multi-layer honeycomb panels and impact tensile behavior of the component members. Int J Impact Eng 2000 24 659 671. Google Scholar Crossref ISI. 14. Basily, BB, Elsayed, EA. Dynamic axial crushing of multilayer core structures of
Thin-walled metallic tubular components have long been adopted in the transportation industries, where the stable energy absorbing crushing process provides protection to occupants and cargo in the event of a collision. Fibreepoxy tubes provide superior strength to weight ratios, however brittle failure modes may limit their energy absorbing capacity under large axial deformation.
May 14, 2019 Pirmohammad, S, Marzdashti, SE 2016 Crushing behavior of new designed multi-cell members subjected to axial and oblique quasi-static loads. Thin-Walled Structures 108 291 304. Google Scholar Crossref
curve, reduced peak force and high mean crushing force is the key in the modern dynamic design of structures. In this regard, a new metallic tubular configuration consisting of uni-sectional bi-tubular inner tubes, with outer tubes of multiple varied cross-sections is proposed and crushed under axial dynamic loading. A number of
The interlayer friction that usually develops during crushing in multi-layered configurations indeed dissipates some of the kinetic energy, ... Hsu, S.S. Jones, N. Dynamic axial crushing of aluminium alloy 6063-T6 circular tubes. Lat. Am. J. Solids Struct. 2004, 1, 277. Google Scholar Thornton, P.H. The crush behaviour of pultruded tubes at ...
dynamic axial crushing of triggered aluminium thin-walled columns The objective of the research reported in this paper is to compare the effects of crush initiators, different in shape and size, on the first peak load and on the collapse mechanism of aluminium thin-walled columns.
The honeycomb structure component has the excellent performance of the impact crushing energy absorption as a light-weight structural element. For the purpose of the improvement in the energy absorption ability and the reduction of initial peak stress, the impact crushing behavior was experimentally conducted about some types of foam filled aluminum honeycomb cells under axial dynamic
The crushing simulation is presented in this paper to determine the dynamic absorbed energy of multi-cell aluminum 6061-T6 alloy extrusion tubes under axial loading. Thin-walled extruded aluminum 6061-T6 alloy tubes were widely used as energy absorbers for decades since they have an advantage in terms of strength to weight ratio efficiency.
May 18, 2017 Dynamic Axial Crushing of Square Tubes, Int. J. Impact Eng., 2 2 ... New Extruded Multi-Cell Aluminum Profile for Maximum Crash Energy
Oct 01, 2019 International Journal of Technology 2019-10-01 . Theoretical Prediction of Dynamic Axial Crushing on a Square Tube with Eight Holes Used as a Crush Initiator
Abramowicz, W. and Jones, N. 1986 Dynamic progressive buckling of circular and square tubes, International Journal of Impact Engineering 44, 243270. Crossref, Google Scholar Abramowicz, W. and Wierzbicki, T. 1988 Axial crushing of foam-filled columns, International Journal of Mechanical Sciences 3034, 263271.
Request PDF Numerical and experimental study of single-walled and double-walled columns under dynamic axial loading This paper presents a numerical and experimental study of single-walled and ...