Skip to main content

research

initial particle distribution in SPH

Submitted by ialcantara on
research
SPH

I wonder how important the initial set up for a Smoothed Particle Hydrodynamics simulation is. Is the initial particle distribution somehow significant for the final result? How to control particle density and distribution along problem domain? What are the important factors inherent to the initial set up? Having control over the initial set up is going against the philosophy of this method?

 

J integral estimation in ABAQUS

Submitted by f.fantoni002 on
research
J integral - Abaqus

Dear all,

I am a Ph.D student. I am trying to calculate the value of the j-integral for a 3D penny shaped crack embeddee in a continuum linear elastic solid using ABAQUS.

the first difficulty that I have met is that j-integral values are negative forr some nodes along the crack front.

I am pretty sure that the value of the normal to the crack front that I have used is correct.

 Do you know some other reason for that?

Mechanical Engineering Technology: Clean Energy And Linear Motion Mechanism

Submitted by Jigar Y. Patel on
research
linear motion mechanism
mechanical technology
mechanical research
renewable energy mechanism

You can see two sliders. I apply force using one slider to another slider. Best part is one slider move little bit

and helps second slider

to slide 6 times length at 70 % force.

For More information please visit http://mechanicalresearch.info/

 

Energy Used to move first slider=force*distance

=100N*0.05m

=5Nm

 

Energy Get on Other Slider= Force*Distance

=Force applied by first slider*cos(45`)*distance

=100*0.7*0.25

=17.5

 

 

Discussion of fracture paper #9 - Crack tip modelling

Submitted by ESIS on
research
fracture
interface
Process region
ESIS

Dear Reader, 

I recently took over as the ESIS blog editor. Being the second in this baton relay, I will do my best to live up to the good reader expectations that have been established by my precursor, who is also one of the instigators of the blog, Wolfgang Brocks. 

Vectorial rapresentaton of State Variable in ABAQUS

Submitted by mattia.bacca on
Forums
Ask iMechanica
Choose a channel featured in the header of iMechanica
research
Free Tags
Vectorial Field Vector State Variable Abaqus UMAT

Hello,

 

I qould like to represent a State Variable of my Abaqus UMAT with a vector field. Is it possible to do that? How do I proceed?

Thank you in advance!

Regars,

Mattia, UCSB

Theoretical study of magneto-rheological elastomers

Submitted by Prashant Saxena on
research
Continuum mechanics; nonlinear elasticity; electromechanical coupling; magnetomechanical coupling

I post the links to some of our recently published papers on magneto-elasticity. These are iron-filled elastomers whose mechanical properties can be influenced by the application of a magnetic field. A continuum theory that accounts for magneto-mechanical coupling as well as rate-dependent energy dissipating deformations is presented.

I also attach post-print versions of these articles here. Hopefully, they can be useful for some people working in this field.

Subscribe to research