The ever increasing requirements for improved passenger safety in automobiles has led to a great number of improvements over the recent years. The Finite-Element-Methods (FEM) has proven an invaluable tool helping designers to understand and improve passive automotive safety. With the increased usage of FEM analysis there is an increased need for experimental model validation not satisfied by traditional measurement technology such as strain or clip gages or extensometers. In this paper the authors introduce an accurate non-contacting full-field measurement technology applicable to both two- and three-dimensional measurement problems. The simple and robust set-up is well suited to both laboratory ad field conditions and minimal specimen preparation is required. The key points of technology and analysis software are: - successfully used to make measurements on a range of specimen sizes from 0.5 mm to 200 m, - accuracy unaffected by large in-plane rotations or translations, - accuracy up to +/- 0.01 pixels in displacement, - accuracy > 200 microstrain, - > 500 % strain can be measured, - quasi-static to ultra-high speed events.
Non-contacting measurement technology for component safety assessment
Berührungslose Meßtechnik zur Bestimmung der Sicherheit von Komponenten
9 Seiten, 9 Bilder, 9 Quellen
Aufsatz (Konferenz)
Englisch
Non-contacting measurement technology for component safety assessment
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