A Critical Review of Different Experimental Approaches to Calibrate Numerical Sheet Forming Simulations Virtual Vehicle Research Center, Austria

Format:

Conference/Event

Author/Creator:

Ofenheimer, Aldo, author.

Conference Name:

SAE World Congress & Exhibition (2007-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

The calibration of yield functions for numerical sheet forming simulations is done using different experimental approaches such as the uniaxial tensile test, the bulge test, et cetera How accurately the material behavior of dedicated aluminum, conventional and high strengths steel grades subjected to various loading conditions can be modeled is investigated using e.g. uniaxial tensile test data only. Different formulations of yield functions that are widely used in industry (e.g. Hill'48, Hosford'79, Hill'90) are considered. It is shown that tensile test data is insufficient to successfully calibrate yield functions for numerical sheet forming simulations especially for aluminum and pronounced anisotropic steel. The use of improved formulations of yield functions is emphasized

Notes:

Vendor supplied data

Publisher Number:

2007-01-1685

Access Restriction:

Restricted for use by site license