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Displacement control VS. force control in Abaqus

Submitted by mahmood seraji on
research
methods of loading

Dear friends,



I have modeled a simply supported beam, using wire and the circle section of 1mm and a length of 110mm. I did two analyses


1) I used the distributed load of 0.2 N/mm (where the beam behaves in
the elastic area) and got the maximum displacement (at center).   

2) I used the obtained max displacement (from first analysis) as a
displacement control. the results of the reaction forces are supposed to
like the distributed load at first analysis, but it is much lower.

need help in ansys

Submitted by dileepade on
opinion
Kinetic energy of elements

sir,

I need to find out kinetic energy of the element in the harmonic analyis problem of a plate.

i am using ansys command...in /post1

etable,KE,KENE

but no data is stored on the lable KE

please help and suggest some other means to do the same...or the correct method of issuing this command ..

 thanks

dileep

 

 

Tensile test under LS-DYNA

Submitted by Manaliac on
education
Plasticity
metal
ls-dyna
tensile test
ductile

Dear all,

I would like to run a tensile test under ls-dyna of a mild steel  and
apply a 7000 N load to the dog bone specimen on a explicite scheme.

Unfortunately, I
have wild deformations ( and an error) on the nodes on edges where the
load is applied, so can you please tell me what are the importants
constants (like time termination, mass scale,...) and how to perform a
perfect run?

 

Have a good day,

 

Thank you

M.

International Conference on Fatigue Damage of Structural Materials IX 16-21 September 2012, Hyannis, MA, USA

Submitted by Sophie Hayward on
conference
corrosion
crack growth
Abrasion
residual stress
fatigue damage
ALLOYS
oxidation
structural metals
overload
underload
arbitrary loading sequences
service spectrum loads
combined HCF LCF
elevated or cryogenic temperatures

Call for Papers - deadline 9 December 2011

Submit your abstract here: www.fatiguedamageconference.com 

We welcome poster and abstract submissions on the following topics:

The surface effect on the strain energy release rate of buckling delamination in thin film–substrate systems

Submitted by tongqing.lu on
research
thin film
surface effect
buckling delamination

Gurtin–Murdoch continuum surface elasticity model is employed to study the buckling

delamination of ultra thin film–substrate system. The effects of surface deformation and

residual stress on the large deflection of ultra thin film are considered in analysis. A

concept of effective bending rigidity (EBR) for ultra thin plate is proposed on the basis of

Gurtin–Murdoch continuum theory and the principle of minimum potential energy. The

governing equations with EBR are formally consistent with the classical plate theory,

No Application will be considered--- Research position for doctoral candidate or postdoc at TU Darmstadt, Germany

Submitted by xubaixiang on
job
postdoc
research position
doctor candidate

 No more applications will be considered for the above mentioned the position.

 Thank you for the interest.

 

 

Wave propagation simulation in elastic bar

Submitted by ak10182 on
dynamic
wave propagation
Newmark
time integration

Hi ,

 I'm working on simulation of wave propagation in a bar. I'm using
newmark time integration scheme to solve my problem. I have a bae
clamped at one end and under tensile at the other end. when I decrease
my time step ,at the beginning of the loading I see tiny negative
strains which is so weird. I used some numerical damping with the scheme
and I could reduce the time step but still I have this problem in
smaller time steps. Can anyone help me with this?

  Thank you very much!!!

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