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What's the difference between Cohesive Zone Model and Joints Element in discrete element method?

Submitted by xi xun on
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Hi,

I am a PhD student working on rock mechanics. I have studied Cohesive Method for a few times. But I am confused on What the special functions the Cohesive element have compared with Discrete method? 

For one DEM software UDEC， model is consisted of solid elements and joints elements. What's the difference between Cohesive element and Goodman element?

Fundamentals of Simpleware Training (full day), UK, Feb 7th 2017

Submitted by Simpleware on
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simpleware
software
Training
UK

When: Tuesday, February 7, 2017

Where: Synopsys Reading Training Centre, 100 Brook Drive, Green Park, Reading, RG2 6UJ, United Kingdom

Overview

This one-day intensive training course intends to give new and existing users sufficient knowledge of the basic functionality of Simpleware software. It will allow you to develop workflows based your areas of research and future projects.

Harmonic analysis with a crack?

Submitted by shreeram111 on
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Fracture Mechanics Forum
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3D Fracture analysis thru Ansys
Interface Fracture Mechanics
Dynamic analysis
Harmonic analysis
Computational Mechanics of Fracture
computational mechanics of materials

Hello everybody,

                          I am trying to perform a harmonic analysis of a material sample (say a simple 2D plate) with an edge crack in it using 'Ansys R16'. I see that under sinusoidal loading condition, the two crack faces open or close and interpenetrate (after closing which is not possible practically).

Short course: Mesoscale models: From micro-physics to macro-interpretation

Submitted by mesarovic on
education
interfaces
dislocations
Crystal plasticity
granular materials
multiphase flow problems
capillary effect

Short course at Centre International de Sciences Mechanique (CISM), Udine.

May 22-26, 2017

Lecturers:  S Forest, I Groma, D McDowell, S Mesarovic, J-N Roux, H Zbib

The flyer is attached.  Register at:   http://www.cism.it/courses/C1703/ 

Summary 

Dynamic Stability and Bifurcation in Nonconservative Mechanics. CISM 2017 Advanced School: Udine, Italy, April 10 - 14, 2017

Submitted by Davide Bigoni on
education
dynamic stability
dynamic instability
bifurcation
flutter instability
FOLLOWER FORCE

Lecturers:

Davide Bigoni - Università di Trento, Italy

Olivier Doaré - ENSTA ParisTech, France

Oleg Kirillov - Russian Academy of Sciences, Steklov Mathematical Institute, Moscow, Russia

Unconnected regions in abaqus

Submitted by kshitij_gaikar on
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ABAQUS

I am new to abaqus and currently working in Abaqus 2016

I am getting the error 5 unconnected regions in abaqus. I have checked thoroughly all the interefaces and boundary conditions but I am not able to sort out this problem. Also I am getting Displacment increment is too big for contact. The job is getting aborted eventually.

I have attached images of the model.

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