Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : October 08, 2016 - October 10, 2016
In order to examine the size effect of a stress concentration region on fracture strength at the nanometer scale, fracture experiments were carried using silicon single crystal cantilever specimens with a notch. A crack was initiated along the (110) cleavage plane from the notch root. Finite element analyses pointed out that the fracture strength, which was evaluated by the normal stress at 1 nm from the notch root, gradually increased with decrease of the stress concentration region size and reached the ideal strength of the (110) cleavage plane of silicon.
