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 node/9509

 Hi everybody, i am Ravikumar doing M. Tech. project on multi scale analysis of composites.

I gave the input as nodal displacements and different material properties for glass and resin. I applied all the normal stresses and shear stresses on the micro scale model which is of hexagonal array  structure. (i.e., one circular fiber at the centre and quarter fibers at the four corners of the model and the remaining portion is filled up by resin).

I have just volunteered to teach engineering thermodynamics to undergraduates in the Fall semester of 2011.  The students will be from all fields of engineering, primarily mechanical engineering, environmental engineering, and bioengineering.  I have never taught this course before, and would love to hear from you about your experience, either as a student or as a teacher. 

Here is what I have found from the website about the course.

Engineering Science 181 Engineering Thermodynamics

I want to model torsion of a homogeneous hollow cylinder in ANSYS. I changed to cylindric coordinate system also. But each time I run the program  the result is that of bending. I have attached the mac file and output file for reference. Please advise.

finish

/clear

/PREP7  

!*  

ET,1,SOLID92

!*  

!*  

MPTEMP,,,,,,,,  

MPTEMP,1,0  

MPDATA,EX,1,,70e9   

MPDATA,PRXY,1,,0.3  

CSYS,1  

CYL4,0,0,1, ,2, ,10 

I am trying to call VUSDFLD subroutine before VUMAT. I need to access some variables which are not available in VUMAT. Does anyone know how I can force ABAQUS into calling VUSDFLD before VUMAT? Thanks.

 Ahmad

In Abaqus .inp or Abaqus/CAE, are there mesh generation commands similar to ANSYS commands FILL, NGEN, and EGEN used to geneate nodes (between keypoints) and elements ?

For the most up to date corrections to the book, go to http://forum.cadec-online.com/viewtopic.php?f=9&t=34

For the most up to date ERRATA, go to http://www.mae.wvu.edu/barbero/feacm/errata_feacm.htm