An Investigation of Springback Stresses in Deep-Drawn Cups Using Diffraction Techniques National Institute of Standards and Technology

Format:

Conference/Event

Author/Creator:

Gnaeupel-Herold, T., author.

Conference Name:

SAE 2005 World Congress & Exhibition (2005-04-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

Prediction of springback has become a major focus in sheet metal forming. Validation of finite element codes that are being developed to predict springback require accurate property data and a more complete understanding of the residual stresses that are involved. To provide experimental data for these calculations, neutron and synchrotron X-ray diffraction measurements were carried out to determine the through-thickness distribution of axial and hoop (or tangential) residual stresses in deep-drawn steel and aluminum cups. The techniques are able to provide true spatial resolutions as low as 0.05 mm for a strain measurement on cups with 1 mm wall thickness. It was found that the stresses exhibit non-linear gradients through the thickness that also depend on the axial position

Notes:

Vendor supplied data

Publisher Number:

2005-01-0498

Access Restriction:

Restricted for use by site license