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What are the differences between "strain hardening" and "work hardening"?

Submitted by Shunlai.Zang on

I think the concepts from the constitutive theory, but in many papers the researchers seem that they dont differentiate them.  So could you give me an exact explanation about it?  Thank you.

Shun lai Zang  

B.Eng, MSc, PhD

Lectuer in Material Science and Engineering



School of Mechanical Engineering

Xi'an Jiaotong University

Xi'an ,Shaanxi,China

How to get residual stress, Given HV--True Strain Curve and HV--Position from the surface Curve?

Submitted by Databa on

Hi, Everyone,

     I have done an experiment, and got the HV(microhardness)--True strain curve, and the Cuver of HV(microhardness)--Position from the sample surface.

 

    Now I want to know how to compute Residual stress? according to the the upper information.

 

    It would be very kind of you to give any suggestions.  Thanks in advance.

   

    Best Regards

    Databa

Not converged for modelling crack propagation

Submitted by Chris Yang on

Hello! I am modelling crack propagation in concrete specimen under direct tension by using cohesive element in ABAQUS as the interface where crack will propagate. By setting up the proper values of the parameters, I could model the exact behavior prior to the cracking, however, when changing some parameters to get the interface cracked, the model committed to be diversed. I have tried some little skills like viscosity and energy disspation fraction, but it was still not working.

Applying Non-Uniform Distributed Forces/Pressures in Abaqus

Submitted by andycph on
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 I am working on a problem involving wind-tunnel testing of a component. Basically, the component has numerous pressure tappings on its surface to measure the pressure in the wind tunnel. I am required to apply these pressure measurements into the Abaqus model. I am looking for some suggestions as to how best to accomplish this. Basically, the output from the pressure tappings looks like this (I moitted some details...):

Miniature disk bend testing and its fixture design

Submitted by durgamadhaba on
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hii

I  need a bit help in preparing my seminar topic on the subject "Miniature disk bend testing".If anyone can help me out from this problem i will be indebted for life time.

    You can post me the link, sites, any information on my email  id- bapu285 [at] gmail.com.

waiting for a reply.

please help me out from this problem

Miniature disk bend testing

Submitted by durgamadhaba on

Hello everybody

     Thanks for your loads of response and I am glad that you have given such valuable data regarding MDBT.

M ostly I need some more data reagarding MDBT and its fixture design.What should be the exact design procedure to perform this test and what should be the exact circumstances and precautions need to be taken are the concerned area where I need your help.

Its hearty request to help me sort out my problem and let me help in this regard.