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Realization and Verification of Data Conversion from Laser Scanner to FEM

Sapietová Alžbeta, Štalmach Ondrej, Sága Milan, Stančeková Dana, Gajdoš Lukáš

Advances in Science and Technology. Research Journal

2020

Vol. 14, no 1

69--74

This paper deals with the data processing in the form of a point cloud scanned using a handheld 3D laser scanner. The aim of the paper was to use this data to create a representative FEM model and compare two different ap¬proaches, one them involved creating a CAD model and the other one did not. The data processing was carried out in the freeware systems MeshLab and Meshmixer and FEM analysis in the software ANSYS Workbench.

Processing of results from a thermal FEM analysis using the lock-in method and comparison with experiment

Štalmach Ondrej, Dekýš Vladimír, Novák Pavol, Sapieta Milan

Zeszyty Naukowe. Transport / Politechnika Śląska

2019

z. 104

159--168

This article dealt with the comparison of results obtained from an experiment and from the numerical thermal FEM analysis. Sample with defects were printed on a 3D printer. A thermal wave from the halogen lamp to excite the front surface of the sample was used in the next step and the response was measured by a thermal camera. After processing the data in the software DisplayIMG, a phase image was created representing the 2D image of the material at a certain depth under the surface of the model. Lock-in method was applied to the results from the numerical thermal FEM analysis and the phase image was created. The programs code were created in MATLAB for a 4 points, multiple points and differential lock-in method which were compared with the results from the experiment.