Stress-strain curve of a metal
These notes are part of a course on plasticity.
Blog posts
Plasticity
I am teaching this course this semester. I'll post notes as I write them. Links to the notes are listed in this post. I will also notify updates on twitter: https://twitter.com/zhigangsuo
Basic Equations in Fluid Mechanics
I wrote these notes as a background for teaching elasticity and plasticity. Even in this most basic formulation, the dilation of the fluid is viscoelastic.
Load Displacement curve for XFEM in ABAQUS
I am using Maxps Damage criteria for an XFEM crack for a three point bending case. I am using displacement loading on the specimen and wish to plot reaction load v/s mouth opening displacement. I would like to know how to obtain the crack tip opening displacement in ABAQUS. All the journal papers I read show a slump in reaction force after the crack starts to propagate. I plot the results and contour plots show me clearly that the crack has started to propagate. Please help.
Post-doc position in Model Reduction (CU Boulder)
We are no longer accepting appciations for this position.
Qulified applicants will be contacted soon.
Thank you for your interests again.
equivalent strain
Dear reaserchers
Here is my question in developing the eqivalent strain via in-plane stress problems. please let me find your answers.
I did an experimental test on a 6 mm thickness plate. Principal strains (ε1,ε2) was developed from recorded strains via Rosset strain gauges . To develop the equivalent strains I need ε1 , ε2 , ε3 in the following eqation:
dεe=(√2/3)(dε12+dε22+dε32)1/2
how can I deal with the thickness strain in the Shell elements (S4R) writing a VUMAT subroutine ?
Hey buddies
I am writing a constitutive relation in vumat for plane stress conditions with S4R elemet in the ABAQUS.
the problem is that the E33 is reported as zero where it is not zero and also the values for S11 and S22 are so large numbers.
ihave tried the code for 3D conditions and it work great with C3D8R element and the results are satisfactory where for the Shell elements by enforcing the S33=0, the E33 gets zero too.
does anybody have any solution?
thanks alot
equivalent strain
Dear reaserchers
Here is my question in developing the eqivalent strain via in-plane stress problems. please let me find your answers.
I did an experimental test on a 6 mm thickness plate. Principal strains (ε1,ε2) was developed from recorded strains via Rosset strain gauges . To develop the equivalent strains I need ε1 , ε2 , ε3 in the following eqation:
dεe=(√2/3)(dε12+dε22+dε32)1/2
Solid Mechanics Faculty Position at Southern Methodist University
SOUTHERN METHODIST UNIVERSITY, Department of Mechanical Engineering invites applications for a full‐time tenure‐track faculty position at the rank of assistant professor (Position No. 52632). We are seeking a highly qualified faculty member in the area of Solid Mechanics with particular focus on experimental and/or computational biomechanics, mechanobiology, and micro‐ and nano‐mechanics to start in August 2015. Candidates must have a Ph.D.
The theoretical ultimate magnetoelectric coefficients of magnetoelectric composites by optimization design
This paper investigates what is the largest magnetoelectric (ME) coefficient of ME composites, and how to realize it. From the standpoint of energy conservation, a theoretical analysis is carried out on an imaginary lever structure consisting of a magnetostrictive phase, a piezoelectric phase, and a rigid lever. This structure is a generalization of various composite layouts for optimization on ME effect.