STRESS CONCENTRATION AND FATIGUE STRENGTH OF RECTANGLE PLATES WITH BOLTED CIRCULAR HOLES

Abstract

Stress analyses by using three dimensional fmite element method and stress measuring tests are performed in order to make clear the reduction of stress concentration by bolting the stop hole which is a circular hole drilled at the tip of fatigue crack. On the basis of the results of above examinations, evaluating procedure for fatigue strength of fatigue damaged steel members repaired by drilling and bolting the stop holes is proposed, and validity of this procedure is verified by comparing predicted results to experimental results.