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Summary:The cruciform mechanical test is widely used to measure the multiaxial deformation behavior of materials. Standardization of this technique would have widespread technical benefits, and this project is aimed toward that goal. A new test facility, funded by ARRA, is being established within the NIST Center for Automotive Lightweighting, along with associated metrology for measuring stresses, multiaxial strains and temperature changes. The new facility will be online at the end of June 2012. Description:A new ARRA funded cruciform test machine is being installed in the NIST Center for Automotive Lightweighting. Its capabilities include 500kN load per axis, two DIC strain mapping systems (one for large field mapping and one for zooming in to study localizations or features), a high resolution, high speed IR camera to measure adiabatic heating, xray diffraction to measure stresses in situ, and an optical DIC-based biaxial extensometer for control of the strain path during the test. |
Lead Organizational Unit:mmlFacilities/Tools Used:Cruciform Machine (jpeg) Related Programs and Projects:Yield Surface Measurement |