Understanding Uncertainty in Ductile Damage Studies

• Activity Number: 83
• Type: Contributed
• Date/Time: Sunday, August 9, 2015 : 4:00 PM to 5:50 PM
• Sponsor: Section on Physical and Engineering Sciences
• Author(s): Joanne Wendelberger*
• Companies: Los Alamos National Laboratory
• Keywords: uncertainty ; experiments ; errors in variables ; transmitted variation

Abstract

An interdisciplinary investigation is being conducted to investigate ductile damage in materials. The study involves both collection of experimental measurements and development of computer simulation models. Tensile specimens are used to obtain experimental measurements before and after deformation. In order to make use of the experimental data, both as model inputs and as a basis of comparison for model outputs, it is important to understand errors associated with the experimental measurements. Information about the errors associated with the experimental measurements will be used in an examination of the impact of errors on resulting model predictions and in the comparison of model predictions to the experimental measurements.