Characterization of polymeric structural foams under compressive impact loading by means of energy-absorption diagram

2001 ◽  
Vol 25 (5) ◽  
pp. 455-472 ◽  
Author(s):  
M. Avalle ◽  
G. Belingardi ◽  
R. Montanini
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Energy Absorption Diagram ◽  
Structural Foams

Characterization of Polyethylene Foams under Compressive Impact Loading

2005 ◽  
Vol 480-481 ◽  
pp. 513-518 ◽  
Author(s):  
J.L. Ruiz-Herrero ◽  
Miguel A. Rodríguez-Pérez ◽  
Jose A. de Saja
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Energy Impact ◽  
Optimum Energy ◽  
Rapid Loading ◽  
Protected Object ◽  
Absorbing Material ◽  
Energy Absorbing ◽  
The Impact

It has long been recognized that the mechanical behaviour of materials under conditions of rapid loading and impact differs significantly from that under static load application [1].These differences are specially important for those materials as polymeric foams used as low energy impact absorbing materials[2]. An optimum energy absorbing material needs to dissipate the kinetic energy of the impact while keeping the force on it below some limit, thus resulting in a no-dangerous deceleration of the protected object[3]. The mechanical properties at room temperature of six polyethylene foams with closed cells and different densities have been evaluated in purely compressive impact loading conditions. The energy absorption characteristics have been evaluated through different parameters as the peak of deceleration, the load transmitted, the maximum strain and the impact time. The peak of deceleration is used to obtain the cushion diagrams at five different heights, useful to design energy absorption structures.

Energy-absorption behavior of metallic hollow sphere structures under impact loading

2021 ◽  
Vol 226 ◽  
pp. 111350
Author(s):  
Jinliang Song ◽  
Dawei Hu ◽  
Shengmin Luo ◽  
Wanshu Liu ◽  
Dongfang Wang ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Hollow Sphere ◽  
Impact Loading

scholarly journals Compressive Property of an Auxetic-Knitted Composite Tube Under Quasi-Static Loading

2020 ◽  
Vol 20 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Andrews Boakye ◽  
Rafui King Raji ◽  
Pibo Ma ◽  
Honglian Cong
Keyword(s):  
Energy Absorption ◽  
Compression Test ◽  
Impact Loading ◽  
Static Loading ◽  
Fiber Content ◽  
Compressive Property ◽  
Static Compression ◽  
Arrow Head ◽  
Composite Tube ◽  
Quasi Static Compression

AbstractThis research investigates the compressive property of a novel composite based on a weft-knitted auxetic tube subjected to a quasi-static compression test. In order to maximize the influence of the fiber content on the compression test, a Kevlar yarn was used in knitting the tubular samples using three different auxetic arrow-head structures (i.e. 4 × 4, 6 × 6 and 8 × 8 structure). A quasi-static compression test was conducted under two different impact loading speeds (i.e. 5 mm/min and 15 mm/min loading speed). The results indicate that the energy absorption (EA) property of the auxetic composite is highly influenced by the auxeticity of the knitted tubular fabric.

Energy absorption characteristics of aluminium/CFRP hybrid beam under impact loading

2016 ◽  
Vol 22 (2) ◽  
pp. 190-201 ◽  
Author(s):  
Sang-Young Kim ◽  
Ju-Won Jeong ◽  
Jun-Yeob Kim ◽  
Hee-Chul Kim ◽  
Dong-Kil Shin ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Hybrid Beam ◽  
Absorption Characteristics

scholarly journals Mechanical Behavior of Entangled Metallic Wire Materials under Quasi-Static and Impact Loading

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3392 ◽  
Author(s):  
Yiwan Wu ◽  
Lei Jiang ◽  
Hongbai Bai ◽  
Chunhong Lu ◽  
Shangzhou Li
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Absorption Rate ◽  
Maximum Load ◽  
Low Velocity Impact ◽  
Low Velocity ◽  
Metallic Wire ◽  
Maximum Deformation ◽  
Air Damping ◽  
Stiffness And Damping

In this paper, the stiffness and damping property of entangled metallic wire materials (EMWM) under quasi-static and low-velocity impact loading were investigated. The results reveal that the maximum deformation of the EMWM mainly depends on the maximum load it bears, and that air damping is the main way to dissipate impact energy. The EMWM can absorb more energy (energy absorption rate is over 60%) under impact conditions. The EMWM has excellent characteristics of repetitive energy absorption.

Experimental, numerical and analytical studies on the aluminum foam filled energy absorption connectors under impact loading

2018 ◽  
Vol 131 ◽  
pp. 566-576 ◽  
Author(s):  
Yonghui Wang ◽  
Ximei Zhai ◽  
Jiachuan Yan ◽  
Wenjian Ying ◽  
Wei Wang
Keyword(s):  
Energy Absorption ◽  
Impact Loading ◽  
Aluminum Foam ◽  
Analytical Studies ◽  
Foam Filled
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