Predictions of Necking with Analytical Criteria and Comparisons with Experimental Results

Journal Article · Thu May 17 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2740792· OSTI ID:21061762

Brunet, Michel ^[1]; Clerc, Patrice ^[2]

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1. INSA de Lyon, LaMCoS, 20 avenue Einstein, 69621 Villeurbanne (France)
2. MECANIUM, 66 boulevard Niels Bohr, 69603 Villeurbanne (France)

Two analytical approaches are detailed for the determination of Forming Limit Diagrams (F.L.D.) and compared with experimental results. The first one is the 'Enhanced Modified Maximum Force Criterion EMMFC' and the second one is the 'Through-Thickness Shear Instability Criterion TTSIC'. The criteria are both written in an intrinsic analytical form and are applicable to linear and non-linear strain paths as it occurs in any FEM codes for sheet-metal forming simulation. Finally, the two methods are complementary depending on the nature of failure and the predicted curves are in reasonable agreement with the trend of experimental results for a wide range of materials.

• OSTI ID: 21061762
• Journal Information: AIP Conference Proceedings, Vol. 908, Issue 1; Conference: NUMIFORM 2007: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740792; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOYS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
DIAGRAMS
FINITE ELEMENT METHOD
MATERIALS WORKING
METALS
NONLINEAR PROBLEMS
SHEAR
SHEETS
STRAINS