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Determination of Forming Limit Diagrams for Tailor Welded Blanks

Publish Year: 1392
Type: Conference paper
Language: English
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WMECH02_179

Index date: 12 July 2014

Determination of Forming Limit Diagrams for Tailor Welded Blanks abstract

This paper presents the results of simulated Hemispherical Die Stretching (HDS) of laser-welded, low carbon steel (ST12 and ST14) blanks of various thicknesses. The simulations were designed to produce Forming Limit Diagrams (FLDs) for the Tailor Welded Blanks (TWBs). Multiple criteria, including the second time derivatives of major strain, thickness strain and equivalent plastic strain extracted from the strain history of simulations, were used to accurately detect the start of necking in FLDs. This is to say that necking starts when the second derivative of the thickness strain, major strain or plastic strain reaches its maximum value. Knowing the onset of necking, one can measure the major and minor strains at the critical area and produce the corresponding FLD. Results from the proposed method and those from experimental tests are compared to demonstrate the efficiency of the proposed method.

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Determination of Forming Limit Diagrams for Tailor Welded Blanks authors

Ramin Hashemi

Assistant Professor, Department of Mechanical Engineering, Iran University of Science & Technology, Narmak, ۱۶۸۴۶۱۳۱۱۴, Tehran, Iran

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_ _ _ _ forming limit stress _ [4] S. ...
Mechanical Science, 1967, 9, pp 609-620. ...
S. E. Jones, P. P. Gillis, An analysis of biaxial ...
A.R. Safikhani, R. Hashemi, and A. Assempour, Some Numerical Aspects ...
A Assempour, R. Hashemi, K. Abrinia, M Ganjiani, and E. ...
H. Van Minh, R. Sowerby, J.L. Duncan, Probabilistic Model of ...
M. Ganjiani, A. Assempour, Implementation of a robust algorithm for ...
R. G. Narayanan, B. S. Naik, and P. J. Ramulu, ...
K. Narasimhan, and R.H. Wagoner, Finite Element Modeling Simulation of ...
R. Brun, A. Chambard, M. Lai, and P. de Luca, ...
M.F. Shi, K.M. Pickett, and K.K. Bhatt, Formability Issues in ...
R. Safdarian Korouyeh, H. Moslemi Naeini, and G. Liaghat, Forming ...
Metals Test Methods and Analytical Procedures, Annual Book of ASTM ...
_ and Analytical _ of ASTM Standards, ASTM-E643, _ ...
S. _ Panda, V. H. B. Hernandez, M. L. Kuntz, ...
Q. Situ, A new approach to obtain forming limits of ...
Abaqus User Guide, ABAQUS Analysis User's Manual ...
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