Key Laboratory of Failure Mechanics;
Department of Engineering Mechanics;
Tsinghua University;
Beijing 100084;
China Department of Engineering Mechanics;
North-Western Polytechnical University;
Xi'an 710072;
China;
Key Laboratory of Failure Mechanics;
Department of Engineering Mechanics;
Tsinghua University;
Beijing 100084;
China;
Department of Engineering Mechanics;
North-Western Polytechnical University;
Xi'an 710072;
China;