School of Mechanical Engineering;
Shanghai Jiaotong University;
Shanghai;
200030;
P.R.China School of Mechanical Engineering;
Shanghai Jiaotong University;
Shanghai;
200030;
P.R.China School of Mechanical Engineering;
Shanghai Jiaotong University;
Shanghai;
200030;
P.R.China School of Mechanical Engineering;
Shanghai Jiaotong University;
Shanghai;
200030;
P.R.China;
photoelastic; stress; intensity; factors; isochromatic; fringe; V-shaped; notch;