News Column

Reports from University of Technology Add New Data to Findings in Structural Engineering

May 7, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- Researchers detail new data in Structural Engineering. According to news reporting originating in Compiegne, France, by VerticalNews journalists, research stated, "The current work presents a finite element approach for numerical simulation of the incremental sheet metal forming (ISF) process, called here 'ISF-SAM' (for ISF-Simplified Analysis Modelling). The main goal of the study is to develop a simplified FE model sufficiently accurate to simulate the ISF process and quite efficient in terms of CPU time."

The news reporters obtained a quote from the research from the University of Technology, "Some assumptions have been adopted regarding the constitutive strains/stresses equations and the tool/sheet contact conditions. A simplified contact procedure was proposed to predict nodes in contact with the tool and to estimate their imposed displacements. A Discrete Kirchhoff Triangle shell element called DKT12, taking into account membrane and bending effects, has been used to mesh the sheet. An elasto-plastic constitutive model with isotropic hardening behaviour and a static scheme have been adopted to solve the nonlinear equilibrium equations. Satisfactory results have been obtained on two applications and a good correlation has been shown compared to experimental and numerical results, and at the same time a reduction of CPU time more than 60% has been observed."

According to the news reporters, the research concluded: "The bending phenomenon studied through the second application and the obtained results show the reliability of the DKT12 element."

For more information on this research see: Simplified numerical approach for incremental sheet metal forming process. Engineering Structures, 2014;62-63():75-86. Engineering Structures can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Engineering Structures -

Our news correspondents report that additional information may be obtained by contacting L. Ben Ayed, Univ Technol Compiegne, F-60203 Compiegne, France. Additional authors for this research include C. Robert, A. Delameziere, M. Nouari and J.L. Batoz.

Keywords for this news article include: France, Europe, Compiegne, Structural Engineering

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Source: Journal of Engineering

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