Experimental and Finite Element Analysis of Laser Stitch Welded Structure / Mohd Azmi Yunus ...[et al.]

Yunus, Mohd Azmi and Aziz Shah, Mohamad Azam Shah and Abdul Rani, Muhamad Norhisham and Wan Iskandar Mirza, Wan Imaan Izhan and Kushairi, Sahril (2017) Experimental and Finite Element Analysis of Laser Stitch Welded Structure / Mohd Azmi Yunus ...[et al.]. Journal of Mechanical Engineering (JMechE), SI 4 (3). pp. 155-162. ISSN 18235514


Nowadays, the application of laser stitch welding in automotive manufacture has dramatically increased due to its capability in producing lightweight joints. The dynamic characteristics of laser stitch welded joints are important to be analysed in order to understand the effect of the joint towards the noise, vibration and harshness (NVH) of the assembled structure. However, the accuracy of dynamic characteristics of the finite element model is differ from the experimental data due to the invalid assumptions of the input value of the model properties. Understandably, physical phenomenon of the laser stitch welded joint is complex and consist of many uncertainties in order to model in details. In this paper, a few joint connectors are investigated to represent laser stitch welded joints by using finite element modelling method. In this paper, a different type of element connectors such as rigid body element (RBE), shell element and solid element format are explored to represent laser stitch weld joints of a thin plate welded structure. The predicted results of different types of element connectors are then compared in term of natural frequencies and mode shapes with the experimental counterparts. The comparisons of results reveal that shell element has better capability to represent laser stitch welded joint in comparison with other element connectors.


Item Type: Article
Email / ID Num.
Yunus, Mohd Azmi
Aziz Shah, Mohamad Azam Shah
Abdul Rani, Muhamad Norhisham
Wan Iskandar Mirza, Wan Imaan Izhan
Kushairi, Sahril
Subjects: T Technology > TA Engineering. Civil engineering > Engineering mathematics. Engineering analysis > Finite element method
T Technology > TJ Mechanical engineering and machinery
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 18235514
Volume: SI 4
Number: 3
Page Range: pp. 155-162
Keywords: Laser stitch weld, Dynamic characteristic, Experimental modal analysis, Finite element analysis.
Date: 2017
URI: https://ir.uitm.edu.my/id/eprint/39093
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