Project Overview
In this example, we simulate the motion of a laser beam along a cubic curve using the DFLUX subroutine in the Abaqus software.
The laser beam follows the cubic function y = 5000x3. The laser beam moves along this curve while the heat flux is continuously applied to the surface of the workpiece.
Laser beam path defined by a cubic function.
Laser Beam Motion
The laser beam moves along the defined cubic curve at a constant speed of 10 mm/s. The DFLUX subroutine is used to define the moving heat flux and control the position of the laser beam during the analysis.
Motion of the laser beam along the cubic curve.
Gaussian Heat Flux Model
A Gaussian heat flux model is used to define the surface heat flux generated by the laser beam. The laser power in this example is considered to be 100 W.
The DFLUX subroutine is responsible for defining the moving heat flux according to the position of the laser beam along the cubic path.
Gaussian model used to define the surface heat flux.
Thermal-Mechanical Analysis
The analysis is performed in two steps. In the first step, the motion of the laser beam and the corresponding heat flux are defined using the DFLUX subroutine.
In the second step, the cooling process is simulated after the laser beam has completed its movement. This allows the temperature evolution of the workpiece to be investigated during both the heating and cooling stages.
What You Will Learn
- How to simulate a moving laser beam in Abaqus.
- How to define a laser beam path using a cubic function.
- How to use the DFLUX subroutine for a moving heat source.
- How to define the laser beam velocity.
- How to define a Gaussian surface heat flux.
- How to define a laser power of 100 W.
- How to simulate the heating process using a moving laser beam.
- How to define a separate cooling step after laser heating.
- How to implement a Fortran subroutine in Abaqus.
- How to investigate the thermal response of the workpiece.
Key Features
- Moving laser beam simulation in Abaqus.
- Cubic laser beam path: y = 5000x3.
- DFLUX Fortran subroutine.
- Laser beam speed of 10 mm/s.
- Gaussian surface heat flux.
- Laser power of 100 W.
- Two-step thermal analysis.
- Laser heating followed by a cooling process.
- ST37 material data included.
- Research article included.
Project Information
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