Strain Field Measurement in the Vicinity of Ductile Rupture from Digital Image Correlation 2008-01-0856
A methodology that enables two-dimensional strain field measurement in the vicinity of ductile rupture is described. Fully martensitic steel coupons were strained to fracture using a miniature tensile stage with custom data and image acquisition systems. Rupture initiated near the center of each coupon and progressed slowly toward the gage section edges. A state-of-the-art digital image correlation technique was used to compute the true strain field before rupture initiation and ahead of the resulting propagating macroscopic crack before final fracture occurred. True strains of the order of 95% were measured ahead of the crack at later stages of deformation.
Citation: Savic, V. and Hector, L., "Strain Field Measurement in the Vicinity of Ductile Rupture from Digital Image Correlation," SAE Int. J. Mater. Manf. 1(1):427-432, 2009, https://doi.org/10.4271/2008-01-0856. Download Citation
Author(s):
Vesna Savic, Louis G. Hector
Affiliated:
General Motors Co.
Pages: 6
Event:
SAE World Congress & Exhibition
ISSN:
1946-3979
e-ISSN:
1946-3987
Also in:
SAE International Journal of Materials and Manufacturing-V117-5EJ, Innovations in Steel and Applications of Advanced High Strength Steels for Automotive Structures, 2008-SP-2204, SAE International Journal of Materials and Manufacturing-V117-5
Related Topics:
Steel
Tensile strength
Imaging and visualization
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
