Fundamental Investigation for Tensile Test Using Conical Cupping Die

Tomoyuki Ota; Takashi Iizuka

doi:10.4028/www.scientific.net/KEM.622-623.292

Paper Titles

Evaluation and Validation of Methods to Determine Limit Strain States with Focus on Modeling Ductile Fracture
p.265

Experimental Investigation of Ti-6Al-4V with a Biaxial Tensile Test Setup at Elevated Temperature
p.273

Formability Improvement Technique for Heated Sheet Metal Forming by Partial Cooling
p.279

Formability of Magnesium Alloys AZ80 and ZE10
p.284

Fundamental Investigation for Tensile Test Using Conical Cupping Die
p.292

Investigation of a Bulge Test at High Temperatures and High Strain Rates Using a Finite-Element Simulation Study
p.300

Investigation of the Shape of a Cruciform Biaxial Tensile Specimen Intended for a Combination of Plane Strain Tensile States
p.308

Mechanical Response of Microalloyed Steel Subjected to Nonlinear Deformation
p.314

Study of Formability of Steel Thick Plates for Offshore Structures
p.322

HomeKey Engineering MaterialsKey Engineering Materials Vols. 622-623Fundamental Investigation for Tensile Test Using...

Fundamental Investigation for Tensile Test Using Conical Cupping Die

Abstract:

A number of researches have conducted in order to evaluate the ductile fracture occurrence by using forming limit diagram. However, specimen shape and testing machine for obtaining forming limit diagram of sheet metal have some problems. The problem about specimen shape is occurring at the specimen edge. In uniaxial tensile test, the specimen edge may cause a defused neck in width direction and may have influence on fracture occurrence. In biaxial tensile test by using a cruciform specimen, a uniform biaxial deformation is not obtained because uniaxial tensile stress occurs at the specimen edge. Tensile test by using a specimen which does not have such edges should carry out, for example, in bulge test and multi-axial tube expansion test, specimens without edge are used. However, these methods need special machines. Therefore, new biaxial tensile testing method is required. By this method, materials deform depending on biaxial strain state by using popular pressing machines.

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Periodical:

Key Engineering Materials (Volumes 622-623)

Pages:

292-299

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.622-623.292

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Online since:

September 2014

Authors:

Tomoyuki Ota*, Takashi Iizuka

Keywords:

Forming Limit, Sheet Forming, Tensile Test

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