iMechanica - Comments for "Impact and explosion mechanics in China" //m.limpotrade.com/node/1245 Comments for "Impact and explosion mechanics in China" en Shock waves //m.limpotrade.com/comment/2327#comment-2327 <一个id = "评论- 2327 " > < / > < p > < em >回复<人力资源ef="//m.limpotrade.com/node/1245">Impact and explosion mechanics in China

The course on "shock waves" may probably include:

(1) Propagation of waves in various media;
(2) Rankine-Hugoniot jump equations;
(3) Rarefaction wave and various wave interactions;
(4) Mie-Gruneisen equation of state;
(5) Conservation equations.

http://en.wikipedia.org/wiki/Shock_wave

Sat, 05 May 2007 17:35:16 +0000 Henry Tan comment 2327 at //m.limpotrade.com
linked to my blog: //m.limpotrade.com/comment/2494#comment-2494

In reply to Impact and explosion mechanics in China

Mon, 23 Apr 2007 21:23:38 +0000 Henry Tan comment 2494 at //m.limpotrade.com
what to simulate and how to simulate //m.limpotrade.com/comment/2480#comment-2480

In reply to Impact and explosion mechanics in China

From the previous research experience on explosion engineering, I feel that without theoretical analysis you may be lost in what to simulate, but struggle with how to simulate.

Mon, 23 Apr 2007 18:59:12 +0000 Henry Tan comment 2480 at //m.limpotrade.com
hello,Tan //m.limpotrade.com/comment/2384#comment-2384

In reply to Impact and explosion mechanics in China

I am busy to learn Parallel Computation now,and no much time to come here.

Penetration is based in Lagrange method,and is simulated using explicit FEM. Erosion method is used in this Penetration simulation.This simulation is a common example without special consideration.

I know UMIST is very famous in research about Impact and Explosion Mechanics.I think you have a insight about Impact and Explosion Mechanics, and I know you are a lecture in UMIST.

I start my research about Impact and Explosion Mechanics now,and have no excellent result to show.Maybe after one year,I have a good research result to show.

My topic is to research penetration problem in earth-penetrating weapon.I have a problem about my research topic.Do u think only numerical simulation is enough to PHD? Maybe I need theory training about penetration problem.

Best regards

Thu, 19 Apr 2007 15:06:47 +0000 huang peng comment 2384 at //m.limpotrade.com
penetration simulation //m.limpotrade.com/comment/2340#comment-2340

In reply to hello, Tan

Dear Peng,

I am very interested in your penetration simulation (//m.limpotrade.com//m.limpotrade.com/node/1246).

Can I know more details?

Thanks a lot.

Mon, 16 Apr 2007 18:11:44 +0000 Henry Tan comment 2340 at //m.limpotrade.com
hello, Tan //m.limpotrade.com/comment/2333#comment-2333 <一个id = "评论- 2333 " > < / > < p > < em >回复<人力资源ef="//m.limpotrade.com/node/1245">Impact and explosion mechanics in China

Fluid elastic-plastic method is a classical method to simulate mechanical and physical behavior of material in explosive loading.Maybe this method is given by scientists of SNL or LLNL in1960s.

As you know, Fluid elastic-plastic model is named by Sir Zhengzhemin.I don't know the people who gives the Fluid elastic-plastic method firstly.Usually,Solid is regarded as a special material in explosive loading, which have both fluid and solid material property. Sphere stress is considered as pressure P, and P-V relationship is given by Gruneisen model. The relationship of stress deviator and deformation is given by J-C model.

My research object is to simulate penetration problem using Meshless Method, may be some numerical methods about fluid are in my research scope. Thank you for giving so much useful information.

Best regards

Mon, 16 Apr 2007 15:31:32 +0000 huang peng comment 2333 at //m.limpotrade.com
我mpact and explosion mechanics in US //m.limpotrade.com/comment/2330#comment-2330 <一个id = "评论- 2330 " > < / > < p > < em >回复<人力资源ef="//m.limpotrade.com/node/1245">Impact and explosion mechanics in China

So far to my knowledge, some best programs on Explosion Engineering in US academic institutions are:

Institute for Shock Physics, Washington State University
http://www.shock.wsu.edu/

Lindhurst Laboratory of Experimental Geophysics, California Institute of Technology
http://www.gps.caltech.edu/%7esue/TJA_LindhurstLabWebsite/index.html

Energetic Materials Research and Testing Center, New Mexico Institute of Mining and Technology
http://www.emrtc.nmt.edu/

D.K. Wright Jr. Laboratory, Case Western Reserve University (more info)
http://mae1.cwru.edu/Pages/Facilities/dil.htm

Dynamic Inelasticity Laboratory, Northwestern University
http://clifton.mech.northwestern.edu/~espinosa/dil.html

Shock Compression Laboratory, Harvard University
http://www.fas.harvard.edu/~planets/shocklab.html

The University of Missouri-Rolla is the first university in the United States to offer a minor in explosives engineering (2005).

Mon, 16 Apr 2007 11:28:19 +0000 Henry Tan comment 2330 at //m.limpotrade.com
我mpact and explosion mechanics in Japan //m.limpotrade.com/comment/2331#comment-2331

In reply to Impact and explosion mechanics in China

So far to my knowledge, program on Explosion Engineering in Japan academic institutions include:

Shock Wave Research Center, Institute of Fluid Science, Tohoku University
http://www.ifs.tohoku.ac.jp/divisions/en/21coe_iswrc.html

Mon, 16 Apr 2007 11:21:38 +0000 Henry Tan comment 2331 at //m.limpotrade.com
我mpact and explosion mechanics in UK https://万博manbetx平台m.limpotrade.com/comment/2329#comment-2329

In reply to Impact and explosion mechanics in China

So far to my knowledge, some best programs on Explosion Engineering in UK academic institutions are:

Extreme Loading and Design / Impact and Explosion, School of Mechanical, Aerospace and Civil Engineering, University of Manchester.

The concerned subject includes following topics:

Constitutive and hydrodynamic behaviours of engineering materials at high strain rates; Computational mechanics of impact and explosion effects
Crashworthiness of air/surface transportation vehicles (aircraft, automobile, train, ship); Crash barriers and energy absorbing devices; Safety of space shuttles (impact of taking-off debris, space debris); Engineering structures (pipeline, platform, industrial plant, nuclear power station) against accidental missiles, natural missiles and explosion ; Industrial operations (explosion manufacture, mining, excavation, demolition); Weapon effects (ballistics, detonation, penetration and perforation); Protective technology (protective construction, vehicle armors, body armors) against natural disasters, military attacks and terrorist threats

Fracture and Shock Physics, Cavendish Laboratory, Department of Physics, University of Cambridge.

Impact Research Centre, Department of Engineering, University of Liverpool

Mon, 16 Apr 2007 11:15:28 +0000 Henry Tan comment 2329 at //m.limpotrade.com
流体弹塑性模型 //m.limpotrade.com/comment/2328#comment-2328

In reply to Impact and explosion mechanics in China

Dear Huang Peng,

郑哲敏(196?)提出的流体弹塑性体是一种兼有固体与流体特征的弹塑性模型. 这种模型自然、连续地描述了固体与流体间的过渡.

这个模型消除了流体与固体间的界限,可以较好地刻画压力和温度对介质屈服行为的影响.

这个模型现在得到怎样的发展?

Mon, 16 Apr 2007 10:07:49 +0000 Henry Tan comment 2328 at //m.limpotrade.com
我ntroduction to Explosives Engineering //m.limpotrade.com/comment/2326#comment-2326

In reply to Impact and explosion mechanics in China

Here is the contents for the course “Introduction to Explosives Engineering” taught here:

(1) Basic organic chemistry;
(2) Decomposition reactions;
(3) Properties of explosives;
(4) Thermodynamics of explosives;
(5) Shock wave theory;
(6) Detonation theory;
(7) Initiators;
(8) Gurney equations;
(9) Blast effects and demolition.

Mon, 16 Apr 2007 03:32:45 +0000 Henry Tan comment 2326 at //m.limpotrade.com