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Subroutine DFLUX in ABAQUS

Frank Richter's picture

Dear Mechanicians,

time and again the question of modeling moving heat sources pops up, often in the context of laser heating.

One can achieve this using the subroutine DFLUX in ABAQUS.

I decided to post some links here to avoid responding with a longer explanation to every individual seeking assistance.

Please note that I have never worked with any one of these codes and have no access to ABAQUS at present.

No warranty is given by me.

"ELEMENT DELETION" is available in Abaqus Explicit:
User's Manual 23.8.1 User-defined mechanical material behavior

For welding you can also use the Abaqus Welding Interface
http://www.3ds.com/products/simulia/portfolio/abaqus/abaqus-portfolio/ab...

For an introduction to subroutine coding get the file
http://imechanica.org/files/Writing User Subroutines with ABAQUS.pdf

For any ABAQUS-related question: seek advice from the Abaqus mailing list
https://groups.yahoo.com/neo/groups/Abaqus/info
This is a moderated list. Search the archive of this mailing list for the terms "laser", "welding" and "(moving) heat source" in combination with "DFLUX". It has been discussed several times. Two of the links below are taken from the archive of that list.

Try to verify your model with analytical solutions provided in these books:
Carslaw and Jaeger: "Conduction of Heat in Solids"
Duley, Walter W.: "Laser processing and analysis of materials"

Good luck

Frank

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http://abaqus-users.1086179.n5.nabble.com/Gaussian-beam-incident-on-cyli...
Gaussian beam incident on cylinder

Moving laser load around the cylinder
http://abaqus-users.1086179.n5.nabble.com/Moving-laser-load-around-the-c...

 
http://www.dtic.mil/dtic/tr/fulltext/u2/a403503.pdf
DEPARTMENT OF THE ARMY
U.S. Army Corps of Engineers
Publication Number:  ETL 1110-2-365
Title: Engineering and Design - Nonlinear, Incremental Structural Analysis of Massive Concrete Structures
Proponent: CECW-ED
Publication Date: 31 August 1994

Rodrigo Andrade:
Pipe circularity reformation via line heating
Massachusetts Institute of Technology
http://dspace.mit.edu/handle/1721.1/16795

with implementation of a laser :
A THERMAL AND MECHANICAL MODEL OF LASER CLADDING
BY AUGUSTO MOITA DE DEUS
www.demat.ist.utl.pt/~augusto/papers/thesisAMD.pdf

CONCURRENT FIRE DYNAMICS MODELS AND THERMOMECHANICAL
ANALYSIS OF STEEL AND CONCRETE STRUCTURES
PhD thesis by Joonho Choi
Georgia Institute of Technology
December 2008

A Thermal and Mechanical Model of Laser Cladding
PhD thesis
Augusto Moita de Deus
University of Illinois at Urbana-Champaign, 2004

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