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Evolution of structural anisotropy in metal forming processes

โœ Scribed by J. Tirosh

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
528 KB
Volume
32
Category
Article
ISSN
0924-0136

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โœฆ Synopsis

The evolution of structural anisotropy during sheet forming of time-dependent metarial is considered here in some details. The eventual alignment of the elongated pores (voids, cavities, etc.) towards the principal loading direction provides the source for the structural anisotropy. Experimental observations on large derformation (around 30 percent strain) during bulging of thin sheet metal with artificial cavities performed the background for the computational simulation of the evolution of the structural anisotropy.

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Forming limit plays a very important role in metal forming processes since it can be used to predict whether a blank will fracture or not. This paper examines the influence on forming limit of blank and fractured thickness. The fractured thickness of a specimen in the simple tension test is adopted