ABSTRACT
This paper examines the effects of cyclic loading on brittle fracture. Notched specimens were tested under monotonic loading and other two types of cyclic loading (C: constant amplitude loading, and CM: monotonic loading after constant amplitude cyclic loading). It was found that the cumulative ductility under cyclic loading deteriorated the cumulative ductility of the monotonic loading part for specimens under monotonic loading after constant amplitude cyclic loading. Also, the relationship between the ductility amplitude and cumulative ductility had a good correlation for C specimens. Finally, the results of the cumulative damage obtained from cumulative plastic deformation showed a little underestimation of the occurrence of brittle fracture for CM specimens.
