Strength of ceramic–metal joints measured in planar impact experiments

2018 ◽  
Vol 53 (11) ◽  
pp. 8211-8220
Author(s):  
S. Hayun ◽  
E. Ionash ◽  
S. Kalabukhov ◽  
N. Frage ◽  
E. Zaretsky
Keyword(s):  
Planar Impact ◽  
Impact Experiments

scholarly journals Ejecta from liquid gallium during planar impact experiments

2020 ◽  
Author(s):  
Jason Loiseau ◽  
Justin Huneault ◽  
William Georges ◽  
Andrew J. Higgins
Keyword(s):  
Liquid Gallium ◽  
Planar Impact ◽  
Impact Experiments

A Dynamic Damage Model for Uniaxial Compressive Response of AD90 Alumina

2007 ◽  
Vol 340-341 ◽  
pp. 289-294
Author(s):  
Hui Lan Ren ◽  
Ping Li
Keyword(s):  
Crack Nucleation ◽  
Damage Model ◽  
Compressive Loading ◽  
Polycrystalline Alumina ◽  
Compressive Response ◽  
Time Histories ◽  
Surface Particle ◽  
Planar Impact ◽  
Impact Experiments ◽  
Dynamic Damage

The dynamic response of polycrystalline alumina were investigated in the pressure range of 0-13Gpa by planar impact experiments. Manganin gauges were employed to obtain the stress-time histories. From the free surface particle velocity profiles indicate the dispersion of the “plastic” wave for alumina. Using path line principle of Lagrange Analysis the dynamic mechanical behaviors for alumina under impact loading are analyzed, such as nonlinear, strain rate dependence, dispersion and declination of shock wave in the material. A damage model applicable to ceramics subjected to dynamic compressive loading is developed. The model is based on the damage micromechanics and established on wing crack nucleation and growth. The results of the dynamic damage evolution model are compared to the experimental results and a good correlation is obtained.

scholarly journals An Experimental Study on the Sources of Strontium in Mineral Water and General Rules of Its Dissolution—A Case Study of Chengde, Hebei

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 699
Author(s):  
Ruifeng Wang ◽  
Xiong Wu ◽  
Yanliang Zhai ◽  
Yuxuan Su ◽  
Chenhui Liu
Keyword(s):  
Experimental Study ◽  
Mineral Water ◽  
Surrounding Rock ◽  
Mechanism Of Formation ◽  
High Quality ◽  
General Rules ◽  
Leaching Experiment ◽  
High Level ◽  
Impact Experiments

Chengde City boasts a wealth of high-quality mineral water resources characterized by a high level of strontium (Sr), a low level of sodium, and low alkalinity. In order to study the mechanism of formation of Sr-bearing mineral water in Chengde and to scientifically guide future mineral water exploration, taking three typical mineral water exploration areas in Chengde as examples, this paper studies the sources of Sr in mineral water and the general rules of its dissolution via a laboratory static leaching experiment and impact experiments, and it provides an analysis of the characteristics of typical rock samples. The research results indicate that the content of Sr in surrounding rock and the characteristics of minerals existing in surrounding rock jointly control the dissolution of Sr in water; that CO2 can promote the formation of mineral water containing Sr; and that temperature increases may boost the dissolution of Sr from carbonate minerals but also inhibit the dissolution of Sr from silicate minerals.

scholarly journals Dust and atmospheric influence on plasma properties observed in light gas gun hypervelocity impact experiments

2021 ◽  
Vol 151 ◽  
pp. 103833
Author(s):  
Benjamin Estacio ◽  
Gil Shohet ◽  
Sean A.Q. Young ◽  
Isaac Matthews ◽  
Nicolas Lee ◽  
...  
Keyword(s):  
Hypervelocity Impact ◽  
Plasma Properties ◽  
Gas Gun ◽  
Impact Experiments

Magnetorheological Damping of Fragment Barrier Suspension Systems

2018 ◽  
Vol 140 (9) ◽  
Author(s):  
Kwon Joong Son ◽  
Eric P. Fahrenthold
Keyword(s):  
Ballistic Performance ◽  
Mr Fluid ◽  
Suspension Systems ◽  
Mr Fluids ◽  
Ballistic Protection ◽  
Protection Systems ◽  
Fluid Damping ◽  
Magnetorheological Damping ◽  
Impact Experiments ◽  
Very High

Magnetorheological (MR) fluids, well established as components of a variety of suspension systems, may offer opportunities to improve the performance of fabric ballistic protection systems, which typically do not incorporate significant energy dissipation mechanisms. A series of ballistic impact experiments has been conducted to investigate the potential of MR fluid damped fabric suspension systems to improve upon current fabric barrier designs. The results indicate that for the simple fabric suspension systems tested, MR fluid damping does not improve upon the very high weight specific ballistic performance of state of the art aramid fibers.

The use of cylindrical micro-wire electrodes for nano-impact experiments; facilitating the sub-picomolar detection of single nanoparticles

2014 ◽  
Vol 200 ◽  
pp. 47-52 ◽  
Author(s):  
Joanna Ellison ◽  
Christopher Batchelor-McAuley ◽  
Kristina Tschulik ◽  
Richard G. Compton
Keyword(s):  
Impact Experiments

High quality railgun HYPAC for hypervelocity impact experiments

1997 ◽  
Vol 20 (6-10) ◽  
pp. 829-838 ◽  
Author(s):  
Akira Yamori ◽  
Nobuki Kawashima ◽  
Migiwa Kohno ◽  
Shigeyuki Minami ◽  
Shinriki Teii
Keyword(s):  
Hypervelocity Impact ◽  
High Quality ◽  
Impact Experiments

Computational Simulations of Dynamic Compaction of Dry Sand

2012 ◽  
Vol 598 ◽  
pp. 516-519
Author(s):  
Yu Qing Ding ◽  
Wen Hui Tang ◽  
Xian Wen Ran ◽  
Xin Xu
Keyword(s):  
Computational Analysis ◽  
Dynamic Compaction ◽  
Back Surface ◽  
Computational Results ◽  
Two Dimensional ◽  
Computational Simulations ◽  
Plate Impact ◽  
Arrival Times ◽  
Dry Sand ◽  
Impact Experiments

The computational analysis of plate impact experiments on dry sand utilizing the Mie- Grüneisen (MG) equation of state and the P-α compaction model were investigated in this study. A number of two dimensional axial symmetric computations were performed by using the hydrocode AUTODYN. The computational results were compared with the particle velocity on the back surface of the rear plate measured by the VISAR system and the first shock-wave arrival times detected by piezoelectric pins in the samples respectively. It was found that the P-α compaction model was more accurately reproduce the experimental data than the MG EOS.

Experimental Research on the Vibration Reduction and Impact Resistance Performances of Offshore Structure Based on Magnetorheological Damper

2008 ◽  
Author(s):  
Zhongchao Deng ◽  
Dagang Zhang ◽  
Xiongliang Yao
Keyword(s):  
Vibration Reduction ◽  
Impact Resistance ◽  
Mr Damper ◽  
Magnetorheological Damper ◽  
Offshore Structure ◽  
Loading System ◽  
Vibration Experiment ◽  
Exciting Forces ◽  
The Impact ◽  
Impact Experiments

This paper presents a new kind of vibration reduction and impact resistance isolator system based on magnetorheological technique, and its experiment results. The vibration and impact experiments were designed using MTS hydraulic loading system. There were many load cases being applied in the experiment with different mass of the model, exciting forces, and controllable electricity of MR damper (Magnetorheological Damper). The experiment results indicate that this isolator system can control the vibration response very well, especially near the natural frequency of the system; and the isolator system has a good performance in the impact experiment too, the response acceleration was evidently reduced, but the characteristic of MR damper was different form its performance in vibration experiment.

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