Engineering Mechanics

Proceedings Vol. 23 (2017)

ENGINEERING MECHANICS 2017

Copyright © 2017 Brno University of Technology, Faculty of Mechanical Engineering, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno

 

Tomaszewski T.
pages 982 - 985, full text

The use of test results obtained on mini specimens requires that the size effect is taken into consideration. The impact of object size on strength properties is interpreted depending on the test conditions. In this paper, a geometrical size effect resulting from the non-linear distribution of stress occurring in the notched specimen was analysed. Two specimens of different sizes were prepared of 1.4301 stainless steel. The finite elements method was used for calculating theoretical stress concentration factor. The impact of size effect was evaluated based on the test results obtained for high-cycle fatigue strength.

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