Validation of full-field techniques: discussion of experiences

¹ Empa, Laboratory Electronics/Metrology/Reliability, CH-8600 Dübendorf, Switzerland
² Airbus UK Ltd, New Filton House, Filton, Bristol, BS99 7AR, United Kingdom
³ Dantec Dynamics GmbH, Kässbohrerstr. 18, D-89077 Ulm, Germany
⁴ EC Joint Research Centre - IHCP, Via Enrico Fermi 1, I-21020 Ispra (VA), Italy
⁵ University of Liverpool, Department of Engineering, Liverpool, L69 7ZF, United Kingdom
⁶ University of Patras, Rion Patra, HE-26504 Patras, Greece
⁷ High Performance Space Structure Systems GmbH, D-38112, Braunschweig, Germany
⁸ Michigan State University, Department of Mechanical Engineering, East Lansing, MI 48824, USA
⁹ Centro Ricerche Fiat S.C.p.A., Strada Torino 50, I-10043 Orbassano, Italy

^a e-mail: erwin.hack@empa.ch

Abstract

Validation and calibration of optical full-field techniques that are used to measure strain and displacement in experimental mechanics is a prerequisite for validating numerical stress analyses. ICEM14 brings together practising engineers from around the world to exchange their experience regarding validation and calibration from everyday measurements with different optical techniques. The discussion addresses the following issues: (i) experience in calibrating measurement equipment based on imaging; (ii) reference measurements and calibration artefacts; (iii) validation of finite element analyses by comparison to experimental data; and (iv) uncertainties in full-field measurements.