• 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.

  • Cited by: 1
  • Dynamic axial crushing of multi-layer honeycomb panels and

    Dynamic and quasi-static crushing behavior for single- and multi-layer honeycomb structure panels and impact tensile behavior of their members were studied experimentally. Multi-layer honeycomb panels were crushed to extend the practicable applied design of impact energy absorbing buffers which make use of honeycomb core panels.

  • Cited by: 71
  • Static and dynamic axial crushing of Al/CRFP hybrid tubes

    15/10/2019· The static and dynamic axial crushing of CFRP, Al and Al/CFRP hybrid square tubes with sing-cell or multi-cell sections are experimentally and numerically investigated in this work. The influences of the Al wall thickness, numbers of sectional cells and numbers of composite layers on the crushing response and energy absorption characteristics

  • Cited by: 2
  • Dynamic axial crush analysis and design optimization of a

    The dynamic coefficient is a little lower for tubes with defects. The mean crushing force of the square multi-cell tube under a dynamic axial crush is: (19) P m = D C N C d i f C P S F E C + D T N T d i f T P S F E T + D C C N C C d i f C C P S F E C C.

  • Cited by: 6
  • 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.

  • Author: Ahmad Malekshahi, Kourosh Heydari Shirazi, Mohammad Shishesaz
  • 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(7–8), 949–968. Crossref,Google Scholar Mahmoodi, A., Shojaeefard, M. and Googarchin, H. S. [ 2016 ] “ Theoretical development and numerical investigation on energy absorption behavior of tapered multi-cell tubes ,” Thin Wall.

  • Cited by: 1
  • Dynamic Axial Crushing of Multi-Layer Core Structures of

    Dynamic Axial Crushing of Multi-Layer Core Structures of Folded Chevron Patterns Basily B. Basily and E. A. Elsayed Department of Industrial and Systems Engineering Rutgers University 96 Frelinghuysen Road Piscataway, NJ 08854-8018 Abstract The objective of this paper is to investigate our recently developed innovative sheet folding

  • Dynamic axial crushing of origami crash boxes

    1/11/2016· 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.

  • Axial Crushing of Uni-Sectional Bi-Tubular Inner Tubes

    with peak crushing force, mean crushing force and crush force effi-ciency values of 69.8 KN, 7.3 KJ and 0.75, respectively. Keywords Uni-sectional Bi-tubular Tubes, Energy Absorption, Finite Element Modeling, Dynamic Axial Crushing, Metallic Tubes, COPRAS Axial Crushing of Uni-Sectional Bi-Tubular Inner Tubes with Multiple Outer Cross-Sections

  • Cited by: 3
  • Axial crushing of tubes fabricated by metal sheet bending

    Energy absorption characteristics of thin-walled tubes fabricated by bending of metal sheets are studied in this work. Square tubes are prepared by folding aluminum alloy 3003 H12 sheets and quasi-static axial crushing tests are then performed with universal material testing machine.

  • Cited by: 1
  • Axial crushing of tubes fabricated by metal sheet bending

    Energy absorption characteristics of thin-walled tubes fabricated by bending of metal sheets are studied in this work. Square tubes are prepared by folding aluminum alloy 3003 H12 sheets and quasi-static axial crushing tests are then performed with universal material testing machine.

  • 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 ,,. The analytical predictions for the mean crush force are found to be in good agreement with the FE solutions. Results also show a strong correlation between the cross-sectional geometry

  • [PDF] Crashworthiness design of multi-cell tapered tubes

    Article info: Abstract In this article, crashworthiness performance and crushing behavior of tapered structures with four internal reinforcing plates under axial and oblique dynamic loadings is investigated. These structures have a tapered form with five crosssections of square, hexagonal, octagonal, decagon and circular shapes. In the first step, finite element simulations

  • Dynamic axial crushing of multi-layer honeycomb panels and

    The dynamic impact crushing behavior of multi-layer honeycomb sandwich panels and the impact tensile loading behavior of their material members are examined in this experimental i

  • Dynamic and Quasi-Static Testing and Modeling of Hot

    (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

  • A theoretical analysis for the dynamic axial crushing of

    AbstractAn 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 predictions of other authors.

  • 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.

  • Dynamic Biaxial Plastic Buckling of Circular Shells

    Of particular interest is the experimental study of the complex dynamic plastic buckling of circular metallic shells and their energy absorption capacity.

  • Effect of Semi-Apical Angle on the Crush Mechanics of

    the mean crushing load for the single-cell, double-cell and triple-cell square sections are derived and it is proved that multi-cell tubes posed higher energy absorption as compared to single-cell columns [14]. Numerical and experimental studies of dynamic axial impact response of different configurations of multi-

  • Investigation of the Energy Absorption Characteristics of

    1296 N. Ahmed et al. / Investigation of the Energy Absorption Characteristics of Metallic Tubes with Curvy Stiffeners under Dynamic Axial Crushing Latin American Journal of Solids and Structures 14 (2017) 1293-1313 In this study, nature of multi-cells is exploited in single and bi-tubular metallic tubes by using

  • 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.

  • 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

  • A theoretical analysis for the dynamic axial crushing of

    AbstractAn 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 predictions of other authors.

  • Dynamic Axial Crushing of Origami Crash Boxes Request PDF

    Multi-cell structures are highly efficient energy absorber under axial crushing. The present work aimed to resolve some problems concerned with energy absorption of a type of quadruple cells

  • 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.

  • A theoretical analysis for the dynamic axial crushing of

    A theoretical analysis for the dynamic axial crushing of top-hat and double-hat thin-walled sections M D White and N Jones* Impact Research Centre, Department of Engineering, The University of Liverpool, UK Abstract: An approximate theoretical analysis is presented for the mean crushing forces generated

  • International Journal of Impact Engineering

    the dynamic inelastic buckling of structural members. Schneider and Jones [7] conducted some experimental studies on quasi-static crushing and dynamic axial collapse of thin-walled high-strength steel structural sections. Olabi et al. [8] reviewed metallic tube type energy absorbers in which predominantly mild steel and/or aluminum materials

  • Dynamic axial crushing of combined composite aluminium

    An experimental investigation was conducted to study both the crushing behavior and the practical adhesion of multi-material structures under dynamic compression conditions.

  • Axial Crushing of Uni-Sectional Bi-Tubular Inner Tubes

    Dynamic axial crushing of the proposed configurations is performed in ABAQUS explicit dynamics, a commercial FE package. The structural configurations in FE are composed of two rigid plates and a tube which is sandwiched between the two plates. The top rigid plate is allowed to move in the axial direction with a constant velocity of 10m/s while

  • Design of Honeycomb Mesostructures for Crushing Energy

    While the crushing responses in terms of energy absorption and densification strains have been extensively researched and reported, a gap is identified in the generalization of honeycombs with contr’olled and varying geometric parameters. This paper addresses this gap through a series of finite element (FE) simulations where the cell angle and the inclined wall thickness, are varied while