Hello colleagues,

Iam trying to model load test on board pile. I have already a model which is working but not as I need. I think the interaction between pile and soil is not correctly defined. Has someone an experience with this issue.? How I should define the interaction between soil and pile?

Attached .inp file.

Regards

Ziyad

I have a question, for the same metal material, when will the elastic modulus will be changed? in another words, in what kind of processing or machine condition will the elastic modulus be changed? for example, to machine elements(gear, bearing ...), when the part surface is case hardened,will the elastic modulus be changed? if not, how can the difference of hardness between case hardened surface and without hardened substrate be reflected in FEM analysis? how can the case hardened surface parameters affect the contact stress when two part are brought to contact?

and a further question about this topic is will Carburizing and nitriding treatment change the elastic modulus of metals?

Thank you, for you help very much!

Hi everyone:
   I am henry, a graduate student in USA. These days, I am trying to make a zero thickness cohesive zone with curvature. After I define this and get everyting set up, then submit the job, the warning windows pop out and tell me the following error messages:
The node numbering might not be correct for element 2010 instance cohesive-1
The node numbering might not be correct for element 2010 instance cohesive-1
The node numbering might not be correct for element 2029 instance cohesive-1
The node numbering might not be correct for element 2029 instance cohesive-1
The node numbering might not be correct for element 2030 instance cohesive-1

dear all

i am trying to model droplet impact and spreading and i am thinking of using comm code CFX for this purpose

Can CFX handle this sort of problem?  or if some one  can help me out with an alternate

thanks

Hi,

Are there researchers working on specific areas in offshore structures? Or is anyone covering the material behaviour of structures at elevated temperatures? I am indeed challenged to read about excitng contributions from different scholars expecially in structural mechanics. I realise I have just begun a race in research. You could help me gain the proper direction in research.

I shall be glad to get any response. 

Emmanuel

NSF-DFG-Project

Materials World Network: Multi-Scale Study of Chemical Vapor Infiltrated C/C Composites

Abaqus supplies cohesive elements and several traction-separation laws
which can be used to study crack problems. In studying a mode I crack
problem (see Fig.1), the cohesive interfaces in front of the crack tips
(both sides) are represented by cohesive elements. The size of the bulk
material is taken as 6x6 mum and the size of cohesive elements is 2x2
nm (or 10x10 nm). The constitutive response in the cohesive element is
described by a triangle-type traction-separation law, where  maximum
stress or displacement is chosen as the failure criterion of the
cohesive elements. Stresses are applied on the bottom and top surfaces.

file:///home/users/zengxif4/FEM/Test-Cohesive3-gb/cfg.png�

Fig. 1 mode I crack problem 

The classic problem  in the area of High velocity Impact by Taylor...

Rohith

Funding required to execute number of Innovative projects of international value.

Hi,

I am very glad to be here.

I want to make some simulation work on the fracture mechanics of thin films. Because the LEEF model is used for bulk materials, I wonder whether it is reasonable to use in on thin films.

Are there some pannels in abaqus can do crack propagation work or some fracture mechanics?

I am a fresh man and look forward for your help.

Regards

Phenixlee

Hello everyone

I need modeshapes for a tapered beam, so I am using Ansys. By going through the tutorials I found that a beam can be modeled by creating a line and meshing it using Beam elements and assigning real constants. How can I use the beam elements for a tapered beam where  the real constants are not constant. I tried to use tapered beam element but is of no use as it the created all elements of same real constants creating a profile similar to a hack saw. 

Can anyone please help me how to mesh a tapered beam.

 
Awaiting the reply....

 
Shiva Masana