One of the book may help us understand why Boltzmann can have so many new ideas (atom theory, statics mechanics and so on)

A easy way to create contact FEM model by using NASA data and PB2002 data

As we know how to define the interface type is a key problem in ABAQUS.

But when the interface is not regular, can we find a convenient way to realize it?

Hi, everyone

Now I meet a problem, wish can obtain you help.

Now i do some research on multi-compose particle materials (eg. pharmaceutical science  materials)___predict the compressibility, compactibility, flow properties and  breakage behavior.

as we know, the molecular scale at 0.1-70nm scale and crystal growth process at 0.1-100nm scale, can i use the constitutive relationship at micro(=~um)/macro to analyze the performance and structure at this scale.

thanks ! 

my e-mail: bojingzhu@gmail.com 

. 

Using the data from 3D hybrid lattice boltzmann code under parallel environments, some interesting simulated results are obtained by using Tecplot.

Tips:

After download the attached files, please change files name from *.ppt to *.wmv, then they  can be display normally by media player  

PPT file for castigliano theorem(1st & 2nd)_Theory of structures 

As we know, lattice boltzmann method is one method to solve the fluid problems. and the primary work to use this method is give the corrected "boundary conditon"__pressure conditions and velocity conditions.

To general problems, the PC and VC for 2D/3D problems has been obtained by some scientists(eg.D3Q19,D2q9 ...model).

But to the lowest scale problems, the "force" fields is complexed and the traditional PC/VC is not suit for this kind of problems.

My opinion:

 If we know the constitutive relation under this kind of conditions, can we obtained a new kind of PC/VC from the basic theory/knowledge of Quantum mechanics.

Can we establish the relationship between density distributionfunction and dynamic stress intensity factors(J-integral)?

Numerical simulation results(part1): fracture  of multiphase micro flow

explanation:

For the 090*_consise.doc files, down load it and rename it to 090*_consise.avi, then you can open it with winplay

e.g 0903_consie.doc    0903_consise.avi

Dynamic extended stress intensity factors near-fields radiation distribution for P- and S-waves at the 3D crack surface

N.I.Ioakimidis.1982.Application of finite-part integrals to the singular integral equations of crack problems in plane and three-dimensional elasticity. Acta Mechanica.45. 31-47.

N.I.Ioakimidis.1983. A new singular integral equation for the classical crack problem in plane and antiplane elasticity. Int J fracture. 21. 115-122

Dissertation: Hypersingular Integral Equation Method to 3D Crack in Fully Coupled Electromagnetothermoelastic Multiphase Composites

Master: studies of hypersingular integral equation method to three-dimensional crack in bimaterials

2.The Interaction module

abstract:

Analyze crack problem by ABAQUS/CAE

1.define a crack in ABAQUS/CAE

Ms. Ref. No.: XXXXX-D-07-00060
Title: XXXXXX

XXXXXXXXXX

Dear xxx XXX,

I regret to inform you that the reviewers of your manuscript have advised against publication, and I must therefore reject it.

For your guidance, the reviewers' comments are included below.

Thank you for giving us the opportunity to consider your work.

Yours sincerely,

XXXXXXXXXXX, Professor
Associate Editor

XXXXXXXXXXXXX

Reviewers' comments:

Reviewer #3: Most of the paper coincides with a previous article published, but not cited, by the same Authors.

..............

The New Scientist,Vol196,Issue 2624,6 October 2007,Page 32 Paul MarksThe composite material could make the next generation of aeroplanes safer by sensing and repairing cracks before they become critical A smart composite material that senses cracks as they develop and then repairs the damage could make the next generation of aeroplanes safer.

when we talk about magnetism, we use Ising Model or Heisenberg model

if possible can you give me some suggestion about these two model for (one dimensional, two dimensional)

Hypersingular Integral Equation Method to 3D Crack in Fully Coupled Electromagnetothermoelastic Multiphase Composites

Mechanics of Fracture V1-7(1973-)

1. A special theory of crack propagation

2.A three-dimensional strain energy density factor theory of crack propagation

3.Strain energy density theory applied to plate bending problems

4.Dynamic crack problems _Strain energy density criterion

5. Strain  energy density and surface layer energy for blunted cracks or notches.

6.Failure of composites as predicted by  the strain energy density  theory

7.Experimental facture mechanics :strain energy density criterion

If possible,share your opinion (idea) about the future trend of fracture mechanics. Thanks!

Technology, Law and Insurance, Volume 2, Issue 1 March 1997 , pages 43 - 47

Cell membrane system has the protein-lipid-protein sandwich type structure.