#1 How to write an ABAQUS UMAT ? - UMAT for linear elastic material behavior

[@阿姆斯特朗回旋加-p5i]

Thank you so much Prof. Wagner. I am dealing with FGM and UMAT, your tutorials really help me a lot.

[@stephenokocha8364]

Thanks Prof. Wagner. I actually plan on learning UMAT for solid and fracture mechanics, Your tutorials will give me a nice foundation to kick off. Thanks again

[@hnrwagner]

github.com/hnrwagner/UMAT_Lecture_1 abaqus-docs.mit.edu/2017/English/SIMACAESUBRefMap/simasub-c-umat.htm Timecodes: 0:00 - Intro 0:10 - Base Structure of a UMAT 0:30 - UMAT Code 1:03 - Code details - Input 1:18 - Code details - stiffness matrix 1:53 - Details of UMAT Parameters - Website 2:24 - Code details - stress calculation 2:43 - ABAQUS model and UMAT implementation 4:00 - Load UMAT code to ABAQUS Job 4:26 - Comparison of UMAT and ABAQUS Standard results

[@liboyan7010]

VUMT??

[@thanhnguyenquyet1084]

Thank you so much, Dr. Ronald. Without your guidance, I could not run successfully the first Umat file.

[@هندسةميكانيكيةثانويةصلاحالدينب]

Thanks welcome back

[@10Minuters]

Very useful. Thanks. I did a poll in my youtube community and it showed that the viewers need some good basic UMAT tutorials. Do you also plan to cover UMAT for yield modeling (J2, etc)?

[@hnrwagner]

Yes, i am working on it already, but first some more simple stuff like plane stress and plane strain, also Hashin 3D some time later :)

[@곽동현학생공과대학원]

감사합니다. 교수님.

[@liboyan7010]

Hello Prof. Wagner, Do you also plan to cover UEL for plasticity modeling?

[@hnrwagner]

the plan is that the umat gets modified with some form of simple plasticity and element deletion, not really sure what UEL is

[@liboyan7010]

@@hnrwagner User-defined elements

[@ayasalah7243]

Hello professor, how can I stimulate basalt bars(BFRP) as reinforcement for concrete slab. Thank you

[@ahmadturani8203]

When I opened Beam-UMAT.inp it just shows a model no property and others? we should import part as inp right?

[@hnrwagner]

import as model