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Large Deformation - Definition of total work energy density

Submitted by rajan_prithivi on
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large deformation
energy density
Computational Plasticity
continuum mechanics

Like we have the elastic strain energy density for small deformations  defined as 0.5* σ :e  .

Is the equation PK2:E valid for the total work energy density for elastoplastic regimes ? If not, what would be a valid equation for total energy density ?

How can we decompose total work density into elastic work and plastic work densities for a large deformation case.

Where,

PK2 is the second piola kirchoff stress tensor

E is the Green-Lagrange strain tensor

 

Thanks,

Prithivi

 

 

Plane_Stress, Plane_Strain and 3D - Simple doubt..

Submitted by shreeram111 on
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Computational Mechanics Forum
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applied mechanics
FEA
plane stress
plane strain
model simplification

Hello everybody,

 UPDATE :   Question can be deemed as closed.. :)

                       I have a very simple doubt in 3D model simplification. I believe plane stress and plane strain conditions are the two extreme states to simplify a 3D model to 2D case.

Transfroming applied tractions into statically equivalent nodal force BC

Submitted by MithilKamble on
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Hello,

I am trying to produce results for problems with analytical solution to validate my FE code. One of the problmes is the classical plate with a hole configuration with tractions applied at boundaries. However, presently, I can only impose BC in terms of nodal forces and displacements. Therefore I must transform the applied stress in statically equivalent nodal forces.

Modeling of Localized Inelastic Deformation 2016 (LID 2016)

Submitted by jenda_z on
education
localization
Computational Plasticity
CDM continuum damage mechanics
nonlocal formulation

Dear colleagues,

on behalf of the course organizer, I would like to bring to your attention to the advanced course on Modeling of localized inelastic deformation that will be taught by Milan Jirásek in Prague, Czech Republic on 19-23 September 2016.

Simpleware at Hartree Summer Schools 2016: Week 2 - Engineering Simulation

Submitted by Simpleware on
education
simpleware
hartree
UK
warrington
HPC
simulation

Dates: June 27 - July 1, 2016

Venue: The Hartree Centre, STFC Daresbury Laboratory, Warrington, WA4 4AD, UK    [Directions]

School Leaders: Lee Margetts (University of Manchester), Anton Shterenlikht (University of Bristol), and Llion Evans (Culham Centre for Fusion Energy)

Registration Fee: £150

Simpleware are contributing to this event.

PhD and Master’s Positions in Civil and Materials Engineering at Howard University, Washington, DC

Submitted by h.yazdani on
education
Civil and Environmental Engineering
Design and Optimization
advanced materials
additive manufacturing

The Sustainable Infrastructure, Geotechnics, and Materials (SIGMa) Lab at Howard University, Washington, DC invites applicants for two PhD and one Master’s positions in geotechnical and materials engineering for Fall 2016 and Spring 2017. Highly-motivated, industrious individuals with strong computational and/or experimental skills, journal/conference publications, excellent English proficiency, and the ability to work both independently and as part of a collaborative team are strongly encouraged to apply.

IIMEC 2016 summer school on "Advanced Material Systems: Experimentation and Modeling"

Submitted by Theocharis on
education

On behalf of the International Institute for Multifunctional Materials for Energy Conversion (IIMEC) and the Department of Mechanical Engineering at Aristotle University of Thessaloniki, we would like to announce a summer school on Advanced Material Systems: Experimentation and Modeling. The summer school will be held from July 3–9, 2016 on the Aristotle University campus in Thessaloniki, Greece. 

Pressure Difference Calculation in ABAQUS

Submitted by MDaftab on
education
coupled eulerian lagrangian
pressure difference
ABAQUS

Hi everyone, 

I am working on ABAQUS to simulate Pipeline Inspection Gauge (PIG) movement in a pipeline via CEL technique. I am unable to find how to calculate Pressure Difference in the pipeline using Abaqus.

If anyone of you can guide me through it.

Regards,

MD Aftab

Simplified slip-bearing action by using stop ellement in Abaqus

Submitted by Mona20016 on
education
ABAQUS

Hi
can anyone please advise me to define connector ellements with following details:
Using rigid plastic CARTESIAN element and a STOP element in parallel and The connector behaviour must be:
1- rigid up to the slip force limit Rn
2- slip at the bolts up to ±1 mm at constant force Rn
3- rigid bearing hardening

 

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