The suppression effect of fatigue crack extension by bonded composites path

摘要

The repair effect of CFRP patch bonded on aluminum plate with a circular hole under repeated loading was examined using the infrared stress imaging system. The repair effect, was depicted in terms of stress relaxation based on thermo elastic damage analysis. It was experimentally shown that the fatigue crack extension was suppressed and the fatigue life was extended by bonded CFRP patch.