Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
A three-dimensional numerical model for thermoplastic welding process
Submission Author:
Daniel Bernardes de Castro , SP
Co-Authors:
Daniel Bernardes de Castro, Mariano Arbelo, Mauricio Donadon
Presenter: Mariano Arbelo
doi://10.26678/ABCM.COBEM2023.COB2023-1799
Abstract
Thermoplastic composites offer advantages over thermoset composites, such as recyclability, wear and impact resistance, and weldability. Welding allows for complex geometries and eliminates drawbacks of mechanical fastening and adhesive bonding. Most thermoplastic resistance welding studies rely on experiments, and reliable models are needed for wider applications. In this paper, we propose a three-dimensional numerical model for thermoplastic welding of the APC-2/PEEK composite. The model is based on the 3D temperature distribution around the joint interface provided by the transient heat transfer analysis in the Abaqus FE software. A bonding model that considers intimate contact and autohesion has been used to evaluate the bond strength via USDFLD subroutine. The material, thermal properties and processing parameters were obtained from the literature. The presented model demonstrates the ability to handle more complex and realistic geometries. It serves as a tool for predicting bond quality and allows large parametric studies by varying welding parameters. The model was found to be useful for carrying out parametric studies that can assist in the selection of processing parameters for future experimental tests.
Keywords
Composite Materials, Thermoplastic, welding, numerical model
