Numerical simulation of metal removal in laser drilling using meshless local Petrov–Galerkin collocation method

Abidou, Diaa and Sarhan, Ahmed Aly Diaa Mohammed and Yusoff, Nukman and Nik-Ghazali, Nik Nazri and Awang, Md Abu Omar and Hassan, Mohsen A. (2018) Numerical simulation of metal removal in laser drilling using meshless local Petrov–Galerkin collocation method. Applied Mathematical Modelling, 56. pp. 239-253. ISSN 0307-904X

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Official URL: https://doi.org/10.1016/j.apm.2017.08.032

Abstract

A simplified 2D axisymmetric meshfree model of transient metal laser drilling is proposed for a continuous laser beam of Gaussian distribution. The penetration depth is predicted over the whole ablation time. The meshless local Petrov–Galerkin (MLPG) collocation method is used for discretizing the governing equation. Moving least square (MLS) and weighted least square (WLS) are used for approximating the local temperature field. The scheme is constructed in MATLAB, and the results are compared with previous numerical and experimental studies. The numerical results agree with the previous work, thus showing the models reliability in predicting the penetration depth for such a physically complex process.

Item Type: Article
Uncontrolled Keywords: Laser drilling; Meshfree; MLPG; Numerical simulation; Heat transfer
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Faculty of Science > Institute of Mathematical Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Oct 2019 02:53
Last Modified: 14 Oct 2019 02:53
URI: http://eprints.um.edu.my/id/eprint/22727

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