This video (LINK) attempts to give the big picture of solid mechanics along with the brief explanation of the constituent topics.
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This is an educational outreach initiative targeted at all engineers interested in mechanics and seek simpler explanations. Kindly share if you learn something out of this !
Thanks,
Prithivi
Hello,
I have some troubles in calculating the strain in ABAQUS. I have the following Model with one element (see picture) and a linear elastic isotropic Material (Steel), which is sheared in the x-direction. The analytical result of the strain tensor gives me in xz-direction 0.25 (see picture). The result in ABAQUS is 0.5. I ran the same simulation in CalculiX CrunchiX and got the expected strain of 0.25 in the xz-direction
Can anyone tell me how ABAQUS calculates the strain for a linear static analysis? Why is the ABAQUS result exactly 50% higher?
How obtain tension strain concrete(σt0) in damaged plasticity model in ABAQUS?
hello engineers
i need help about concrete damaged plasticity
fo example :
if Compressive stress (Fu)= 51.2 MPa
and tension stress (σ t)=0.3 x 51.2^(2/3)=4.136
1)why (σ t) is 2.36 in picture(uploaded)?
2)what is tension strain ? and how? i cant understand.
i cant obtain εt = total tensile strain.
how obtain εcr ?
please help
This treatise provides a broad overview of the definitions of
fundamental quantities and methods of analysis for the use of solid materials
in structural components. The presentation is limited to the linear elastic
range of material behavior where there is a one to one relationship between
load and displacement. Fundamental
methods of analysis and typical results for structures made of elastic solid materials
subjected to axial, bending, torsion, thermal, and internal pressure loading;
Hello all,
I am having task to determine the strength analysis (stress/strain) of a translating machine part (body). The part is driven by a set of gears, placed on the top of the body. The input is a constant acceleration value to the propultion engine. Firstly I should do a 2D analysis with a retangle representing the machine part.
I am new to this subject, so any idea, approach, advice or helping material is welcomed.
Thank you in advance!
Ljupco Poposki
Hi all,
[Warning: The writing is long, as is usually the case with my posts :)]
It all began with a paper that I proposed for an upcoming conference in India. The extended abstract got accepted, of course, but my work is still in progress, and today I am not sure if I can meet the deadline. So, I may perhaps withdraw it, and then submit a longer version of it to a journal, later.
What is stress? Who has ever seen stress? Is stress a physical quantity?
Professor Yi-Heng Chen, Xi’an Jiaotong University, 710049, P.R.China
e-mail: yhchen2 [at] mail.xjtu.edu.cn (yhchen2[at]mail[dot]xjtu[dot]edu[dot]cn)
In fact, this question has been bothering the present author for more than 15 years.
As a consultant in computational mechanics, I currently help write some FEM-related code, and while doing this job, an episode from a recent past came to my mind. Let me go right on to the technical issue, keeping aside the (not so good) particulars of that episode. (In case you are curious: it happened outside of my current job, during a job interview.)
If you are a design engineer, FE analyst, researcher, or any professional dealing with stress analysis in your work, I seek answers to a couple of questions from you:
Question 1:
Dear All,
I think that many students are looking for some tutorials about writing a UMAT in ABAQUS.
You can find a comprehensive tutorial for elastic problems.
This file contains:
• Motivation
• Steps Required in Writing a UMAT or VUMAT
• UMAT Interface
• Examples
Example 1: UMAT for Isotropic Isothermal Elasticity
Example 2: UMAT for Non-Isothermal Elasticity
Example 3: UMAT for Neo-Hookean Hyperelasticity
