Toward International Standardization of Full-field Optical Methods in Stress and Strain Measurement : Report of VAMAS TWA26 Roundtable in Milwaukee

Abstract

Optical methods in experimental mechanics, such as moire interferometry, speckle interferometry, and digital image correlation, are very valuable in areas where other methods of analysis are not available or impractical. In order to standardize the optical stress and strain measurement methods, TWA 26 (Technical Working Area 26) has been established in VAMAS (The Versailles Project on Advanced Materials and Standards). The meeting of TWA 26 was held during 2002 SEM Annual Conference on Experimental Mechanics in Milwaukee in June 2002. At the meeting, the activities for the standardization were reported by representatives from the United States, Europe and Japan. European group have already begun round robin tests and ASTM in the United States made a draft of the standard. Since the standardization activity in Japan is behind, it is necessary to start standardization activities.