Archive video footage from EU projects
In Einstein's footsteps?
Brave New World
4th Workshop on Validation
After Shanghai 2011, London 2013 and Munich 2014, the Fourth International Workshop on Validation of Computational Mechanics Models will be held in Zurich, Switzerland, on November 5th, 2019. Keynote Speakers include Linden Harris (Airbus), Anna Pandolfi (Politecnico di Milano) and Yakov Ben-Haim (Technion).
The program below includes the Keynote as well as other confirmed speakers for the three sessions.
Session one: Credible Models for Engineering Decision-Making
Keynote: The assessment of smarter testing for credibility and maturity
Linden Harris, Airbus, FR
Validation and credibility challenges in applied biology and toxicology
Maurice Whelan, JRC Ispra, IT
Experimental detection and quantification of crack networks for numerical simulation in heterogeneous materials using techniques based on 3D digital images
Yang Chen and James Marrow, University of Oxford, UK
Session two: Validation of multi-physics models of engineering systems
Keynote: Validation of multiphysics models: from the material scale to the boundary value problem
Anna Pandolfi, Politecnico di Milano, IT
Validation of fluid-structure interaction simulations
George Lampeas, University of Patras and Athena Research Center, HE
Model Validation in the UK Nuclear Industry: A Proposed Probabilistic Metric
Steve Graham, National Nuclear Laboratory, UK
Session three: The Future of Experimental Data for Model Trustworthiness
Keynote: As our Island of Knowledge Grows, so Does the Shore of our Ignorance
Yakov Ben-Haim, Technion, IL
Using Historical Measurement Data for Validation of Engineering Simulations
Erwin Hack, Empa, CH
Middle-ear mechanics and sound localization in the lizard: a finite-element approach
Pieter Livens, University of Antwerp, BE
DIC Calibration Methods
DIC Measurement uncertainty
We evaluated the state-of-the-art for quantifying measurement uncertainty of digital image correlation and assessed potential candidate techniques for evaluating the uncertainty during 1:1 aircraft scale optical strain and displacement measurements.
From there we developed two specific methods for experiments performed in industrial situations. The methods can be performed at the time of the test and quantify measurement uncertainty in the whole measurement volume in a manner that is relevant to the validation of predictive numerical models. This step significantly improves the quality of laboratory-based DIC measurements.
The first method is based on using a calibration plate in front of the test object and a rigid body displacement of the camera system. The methodology is illustrated in this video. A typical result is displayed in the figure below.
The second method uses an LCD screen in front of the test object which displays simulated speckle patterns that are numerically deformed to represent planar strain states. The methodology is illustrated in this video.