Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.


Elastic springback compensation is a long-standing issue for formed sheet automotive components.  The ability to predict the magnitude of springback as a function of material properties and multiaxial multipath plastic strain level would be a key innovation as manufacturers move to advanced, high strength lightweight materials for vehicles.


Springback, or the elastic change in shape when a part is released from the manufacturing process, has been a problem for decades and accounts for a significant fraction of the expense that the US auto industry spends each year trying out die sets for new body designs.  The inability to predict the magnitude of springback, and thus be able to compensate for it by overdrawing a part, is primarily due to a lack of information about the multiaxial stress-strain properties of metals, particularly when they are deformed along complex, non-linear strain paths.  

(more pending)

Major Accomplishments

Acceptance of Springback Cup Test by ASTM (ASTM E-2462)

Measurement of through-thickness residual stress profile driving springback in cup test

Created March 13, 2013, Updated March 29, 2019