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Post-Doctoral position available

Submitted by hmkhan on

A post-doctoral position is available at Kongju National University,South Korea to work in the field of nanomechanics(atomistic modeling) or Bio/nano mechatronics.Interested candidate should send their detailed CV to Prof.Sung-Gaun Kim via email to the following email address-(kimsg [at] kongju.ac.kr).The initial contract is for one year and is extendable to multiple years subject to his/her performance and availability of funding.

Stress fields for finite crack in an infinite plate under tension

Submitted by vinay kumar B A on

hi...

 

       I am working on cracks emanating from a hole,  using Complex
stress potential method.  Now i have obtained the Stress Intensity
Factor ( SIF ) and now i want to plot the stress field or stress
contours. please guide me how i can get stress field.



Thanking you.



Yours Sincerely



vinay     

Crack modeling

Submitted by vinay kumar B A on

 

hi.

 

         I want to model a " Two cracks in infinete plate in ansys" but it is possible to use one quarter point element at a time.

 

    please help me how to model two cracks in ansys or  if it is easily possible in abaqus then also i am interested.

 

thanking you

 

viny

 

 

 

Stress fields for finite crack in an infinite plate under tension

Submitted by vinay kumar B A on

 

hi.

 

  I am working on " crack emanating from a circular hole in anisotropic medium".  now i got the K1 ( SIF`s) using complex stress potential method. Now i want to represent the results in the form of stress field around the crack.

  i am unable to find the stress field around this crack.

 

    i request you to hint the procedure to plot the stress fields.



thanking you.



Yours Sincerely

vinay.

 

Helping to simulate necking in Tensile Test in ABAQUS

Submitted by Danish Khan on

Hello everyone...i am just a beginner in using ABAQUS...well i have been trying to simulate uniaxial tensile test through abaqus..i was succesfull in simluating the plastic part in it...but i am not able to figure out how to to introduce necking and ductile fracture in it...i tried to incorporate ductile damage in it but its showing error in it...can any one tell me how to know the value of stress triaxility??...its showing error like  "plastic strain exceeded 50 times the expected value at 49 points"..and so on..can any one help me out??..i am working on ABAQUS 6.6 student edition..

Fourth order tensor

Submitted by ramdas chennamsetti on

Hi all,

I have a fundamental question on Tensors. The length of a vector (firts order tensor) is independent of the reference co-ordinate system. In case of second order tensor (stress/strain), the invariants (I1, I2, I3) are independent of the co-ordinate system.

If I consider 4th order tensor (of course 3rd order also), say Cijkl, what parameters are constant? (Like length in vector and invariants in second order tensors).

Thanks in advance,

- Ramdas