School of Automotive Engineering State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of Technology Dalian 116024 P.R.China;
School of Automotive Engineering State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of Technology Dalian 116024 P.R.China;
School of Automotive Engineering State Key Laboratory of Structural Analysis for Industrial Equipment Dalian University of Technology Dalian 116024 P.R.China;
couple stress theory; triangular quasi-conforming element; enhanced patch test; scale effect;