- 골재의 동적 거동 모사를 위한 DEM 입력변수의 결정 연구
- ㆍ 저자명
- 윤태영,유평준,김연복,Yun. Tae Young,Yoo. Pyeong Jun,Kim. Yeon Bok
- ㆍ 간행물명
- 한국도로학회논문집
- ㆍ 권/호정보
- 2014년|16권 1호|pp.21-30 (10 pages)
- ㆍ 발행정보
- 한국도로학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
PURPOSES : Evaluation of input parameters determination procedure for dynamic analysis of aggregates in DEM. METHODS : In this research, the aggregate slump test and angularity test were performed as fundamental laboratory tests to determine input parameters of spherical particles in DEM. The heights spreads, weights of the simple tests were measured and used to calibrate rolling and static friction coefficients of particles. RESULTS : The DEM simulations with calibrated parameters showed good agreement with the laboratory test results for given dynamic condition. CONCLUSIONS : It is concluded that the employed calibration method can be applicable to determine rolling friction coefficient of DEM simulation for given dynamic conditions. However, further research is necessary to connect the result to the behavior of aggregate in packing and mixing process and to refine static friction coefficient.