High strain rate compression of cenosphere-pure aluminum syntactic foams

2007 ◽  
Vol 57 (10) ◽  
pp. 945-948 ◽  
Author(s):  
Z.Y. Dou ◽  
L.T. Jiang ◽  
G.H. Wu ◽  
Q. Zhang ◽  
Z.Y. Xiu ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Pure Aluminum ◽  
Syntactic Foams ◽  
Strain Rate Compression

scholarly journals Structural Damages in Syntactic Metal Foams Caused by Monotone or Cyclic Compression

2017 ◽  
Vol 61 (2) ◽  
pp. 146 ◽  
Author(s):  
Bálint Katona ◽  
Imre Norbert Orbulov
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Metal Matrix ◽  
High Strain ◽  
Hollow Spheres ◽  
Syntactic Foams ◽  
Pressure Infiltration ◽  
Cyclic Compression ◽  
Significant Difference ◽  
Strain Rate Compression

Closed cell, high strength metallic foams, like ceramic hollow spheres filled metal matrix foams are promising materials to build lightweight but high specific strength structural parts. The aim of this study is to investigate the damage of the foam structure during monotone or cyclic compression. The tested metal matrix syntactic foams were produced by inert gas pressure infiltration. Four different alloys as matrix and two different ceramic hollow spheres as filler material were applied. The cylindrical specimens were investigated in quasi-static and high strain rate compression and in cyclic compression. The higher strain rates were ensured by a Split-Hopkinson pressure bar system, while the fatigue tests were performed on a closed loop universal hydraulic testing machine. The failure modes of the foams have explicit differences showing barreling and shearing in the case of quasi-static and high strain rate compression respectively. In the case of the fatigue loading, there was a significant difference between the damage mechanisms of the unalloyed and the Si alloyed matrix syntactic foams. This can be explained by the difference between the yield strength of the matrix material and the ceramics hollow spheres.

scholarly journals Fracture behavior of twin induced ultra-fine grained ZK61 magnesium alloy under high strain rate compression

2019 ◽  
Vol 8 (4) ◽  
pp. 3475-3486 ◽  
Author(s):  
Abdul Malik ◽  
Wang Yangwei ◽  
Cheng Huanwu ◽  
Muhammad Abubaker Khan ◽  
Faisal Nazeer ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
High Strain Rate ◽  
Strain Rate ◽  
Fracture Behavior ◽  
High Strain ◽  
Fine Grained ◽  
Strain Rate Compression

High strain rate compression testing of K-49/3501-6 Kevlar/epoxy composites

1997 ◽  
Author(s):  
Eric Preissner ◽  
Eyassu Woldesenbet ◽  
Jack Vinson ◽  
Eric Preissner ◽  
Eyassu Woldesenbet ◽  
...  
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Compression Testing ◽  
Epoxy Composites ◽  
Strain Rate Compression

scholarly journals Response of CFRP Laminates under High Strain Rate Compression until Failure

2005 ◽  
Vol 12 (1-2) ◽  
pp. 145-152 ◽  
Author(s):  
R.M. Guedes, ◽  
M.A. Vaz, ◽  
F.J. Ferreira, ◽  
J. L. Morais,
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Cfrp Laminates ◽  
Strain Rate Compression

scholarly journals Effect of Stress-Relieving Heat Treatment on the High Strain Rate Dynamic Compressive Properties of Additively Manufactured Ti6Al4V (ELI)

Metals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 653
Author(s):  
Amos Muiruri ◽  
Maina Maringa ◽  
Willie du Preez ◽  
Leonard Masu
Keyword(s):  
Plastic Strain ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Split Hopkinson Pressure Bar ◽  
Deformation Behaviour ◽  
Test System ◽  
Strain Rates ◽  
Stress Relieving ◽  
Strain Rate Compression

A study was undertaken on the compressive high strain rate properties and deformation behaviour of Direct Metal Laser-Sintered (DMLS) Ti6Al4V (ELI) parts in two separate forms: as-built (AB) and stress relieved (SR). The high strain rate compression tests were carried out using a Split Hopkinson Pressure Bar test system at ambient temperature. The average plastic strain rates attained by the system were 400 s−1 and 700 s−1. Comparative analyses of the performance (flow stresses and fracture strains) of AB and SR specimens were carried out based on the results obtained at these two plastic strain rates. Microstructural analyses were performed to study the failure mechanisms of the deformed specimens and fracture surfaces. Vickers microhardness test values were obtained before and after high strain rate compression testing. The results obtained in both cases showed the strain rate sensitivity of the stress-relieved samples to be higher in comparison to those of as-built ones, at the same value of true strain.

Sign in / Sign up

Export Citation Format

Share Document