Paper Title
Numerical Analysis of Metal Expansion Joint Manufactured with laser beam support
Abstract
In this paper discussion and results of numerical simulation of metal expansion joint manufacturing was
presented. Innovative manufacturing process combining mechanical forming supported by laser beam heating was described
by authors. Advantages of precise heating of expansion joint surface during forming by laser beam was presented. The
authors explained mechanism of expansion joint forming and its main functionality, which is compensate for temperature
differences and stresses in construction materials. Stress-strain concentration caused by mechanical and thermal forces
occurred during forming process was analyzed. Authors use numerical simulation based on Marc solver to investigate
selected properties of manufactured expansion joints. Simulation was performed in order to obtained laser scanning
parameters as well. High compatibility of simulation results with experimental studies was achieved. Based on thermomechanical
analysis stress-strain distribution was investigated. Results of abovementioned analysis shown stress
concentration in crest and elevated values in root area. Maximum values of calculated stress-strain distribution, however do
not exceed critical values, therefore, no additional heat treatment is required. Obtained results confirm potential of proposed
expansion joints forming process.
Keywords: Laser Beam Treatment, Numerical Simulation, MES analysis, Metal Expansion Joint