The monitoring of structures
involves the measuring of aspects of their performance. For the prediction of
future
damages (cracks) the detection of high stress concentration areas is
essential. The thermographic stress analysis with
thermovision is a full-field
experimental technique, which can be applied for this task. The method allows a
fast overview about the principal stresses in a cyclically loaded steel member,
the detection of dangerous stress concentration areas and the monitoring of the
carrying behaviour of the member. The paper reports experience from 4 tests
carried out at the Brandenburg Technical University, Cottbus (tension bar with
opening, necked hotrolled beam, plate girder with slender web, rosette press
joint).