Application of Krak-gage Technology on Measuring Half-ellipse Surface Crack Length on Arc

Current research status and testing principle of krak-gage technology was described. Based on the technology, half-ellipse surface crack length on arc of single-cantilever beam bonded specimen was successfully measured,the equation about crack length and voltage of 10 mm single and double krak-gage had been achieved. Which showed it was capable that krak-gage technology was applicated in measuring half-ellipse surface crack length on arc.