Authors: V. Satheeshkumar; R. Ganesh Narayanan; Deepak Sharma
Addresses: Department of Mechanical Engineering, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, Amrita University, India ' Department of Mechanical Engineering, IIT Guwahati, 781039 Guwahati, India ' Department of Mechanical Engineering, IIT Guwahati, 781039 Guwahati, India
Abstract: The present work aims to predict the formability of adhesive bonded sheets accurately. The difficulty during incorporation of adhesive and adhesion properties accurately in finite element (FE) simulations while predicting the formability is addressed. Here an artificial neural network (ANN) model is developed based on the experimental data of adhesive bonded sheets which inherently includes actual properties of adhesive and adhesion. Feedforward back propagation algorithm is used for predicting forming limit from tensile test and cup height from deep drawing process. In FE simulations, thickness heterogeneities with factor 'f' have been designed in the base materials to predict the forming limit without adhesive and adhesion properties. The ANN results are validated through experimental results and also compared with FE results. A good correlation between experimental and ANN predicted results, and a considerable variation with FE results confirm the viability of ANN for predicting the formability of adhesive bonded sheets accurately.
Keywords: manufacturing; adhesive bonded sheets; neural network; numerical prediction; tensile behaviour; deep drawing; forming limit; cup height; feedforward back propagation algorithm; thickness heterogeneity; adhesive properties.
International Journal of Mechatronics and Manufacturing Systems, 2017 Vol.10 No.4, pp.321 - 354
Received: 12 May 2017
Accepted: 11 Sep 2017
Published online: 22 Dec 2017 *