Engineering Mechanics

Proceedings Vol. 9 (2003)

ENGINEERING MECHANICS 2003

Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

 

Vavřík D., Jakůbek J., Pospíšil S., Visschers J., Zemánková J.
pages 366 - +10p., full text

The subject of this work is experimental observation of the development of internal damage and its evolution in aluminium alloy flat specimens with different configurations of the pre-crack. We propose direct and non-destructive observation of the material damage evolution by measuring changes in transmission of X-rays penetrating a stressed material, using a single photon counting X-ray imager, called Medipix-1. The specimens were loaded by grips displacement in tension. Observation was performed at a number of loading levels. The measured changes of structural defects in time were correlated with the loading-dependent surface strain field measured by the optical "Method of Interpolated Ellipses".

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