Effect of Modeling Techniques on the Simulation: Calculating the Stress Concentration Factors in Square Hollow Section T-Joints as a Case Study

Serwan S. M. Talabani; Ahmad T. Azeez; Silvio D. Barros; Basim M Fadhil; Hewa H. Omer

doi:10.14500/aro.10585

Serwan S. M. Talabani Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, Koya KOY45, Kurdistan Region http://orcid.org/0000-0002-8640-0763
Ahmad T. Azeez Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, Koya KOY45, Kurdistan Region http://orcid.org/0000-0002-7360-6631
Silvio D. Barros (2) Federal Center of Technological Education in Rio de Janeiro – CEFET/RJ, Rio de Janeiro, Brazil (3) GeM Institute, UMR 6183 CNRS, CESI, Saint-Nazaire, France http://orcid.org/0000-0002-2520-569X
Basim M Fadhil Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, Koya KOY45, Kurdistan Region http://orcid.org/0000-0001-7480-9193
Hewa H. Omer Department of Chemical Engineering, Faculty of Engineering, Soran University, Kurdistan Region http://orcid.org/0000-0003-4574-0339

Keywords: ANSYS Workbench, Face split, Modeling of materials, Stress concentration factor, Welding toe

Abstract

The capability of the simulation software motivates the engineers to analyze the stress in complex welded joints where ordinary mathematical expression may lack. However, unfortunately, the simulations were interpreted mechanically without considering the simulation parameters deeply. For this reason, this research aims to study the effect of simulation parameters on the stress concentration factor of square hollow sections structures using ANSYS workbench. In this context, two main meshing techniques (face split vs. slicing) and various behavior of materials (linear vs. nonlinear) having been considered. The outputs of the investigations revealed the superiority of the materials nonlinearity over linear behavior in terms of results acceptability comparing to their corresponding real-life ones. For instance, the supercritical fluid of nonlinear plastic material estimated to be 14 which was closest to the 12 obtained experimentally by Mashiri et al. In addition to that, face split technique outperformed the slicing in terms of result accuracy and solving time. Solving the face split model elapsed 254 s only which is dramatically less than the minimum time (1605 s) of sliced models. This is because any slicing process will lead to the formation of the contact elements at interfaces and uncomfortable meshing which may in turn adversely effect on the simulation efficiency.

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Author Biographies

Serwan S. M. Talabani, Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, Koya KOY45, Kurdistan Region

Serwan S. Mohammed Talabani is an Assistant Lecturer at the Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, since 2014. He has a B.Sc in Refrigeration and Air conditioning Engineering. and M.Sc. degree in Mechanical Engineering and Engineering Management From Gannon University USA . His main research area is Heat recovery and Thermoelectric Generators. Serwan is a member at the Kurdistan Engineering Syndicate and American Society of Mechanical Engineering ASME.

Ahmad T. Azeez, Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, Koya KOY45, Kurdistan Region

Ahmed T. Azeez, is an Assistant Lecturer at the Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University since 2014. He has an M.Sc. Degree in Material Engineering, His research interests is in characterization the mechanical properties of materials and has some contribution in this regard.

Silvio D. Barros, (2) Federal Center of Technological Education in Rio de Janeiro – CEFET/RJ, Rio de Janeiro, Brazil (3) GeM Institute, UMR 6183 CNRS, CESI, Saint-Nazaire, France

Silvio DE BARROS is a Professor at Federal Center of Technological Education in Rio de Janeiro (CEFET/RJ) and he is currently working at CESI Engineering School in France. He got his PhD in Mechanical Engineering from the Université de Versailles and his Habilitation from the Université de Nantes. His research is mainly about adhesive bonding and composite materials. He is Editor-in-Chief of the journal Applied Adhesion Science and President of the Brazilian Society of Adhesion and Adhesives.

Basim M Fadhil, Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, Koya KOY45, Kurdistan Region

Basim M. Fadhil is a Professor at the Department of Manufacturing and Industrial Engineering, Faculty of Engineering, Koya University, since 2006. He has a B.Sc., M.Sc. and PhD Degree in Applied Mechanics. He got a post doctorate from University of Nanets (France). His main research areas are Composite Materials, Fracture Mechanics, FEM Modeling and Simulations. Prof. Basim is a member at the Kurdistan Engineers Syndicate.

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