FRACTAL ANALYSIS OF FRACTURE SURFACE OF WELDED JOINT UNDER LOW CYCLE FATIGUE
NI Yushan CHENG Guangxu KUANG Zhenbang Xi'an Jiaotong University,China doctorate student,Institute of Engineering Mechanics,Xi'an Jiaotong University,Xi'an 710049,China
Acta Metallurgica Sinica (English Letters) . 1993, (3): 172 -178 .