兰州大学学报(自然科学版)
蘭州大學學報(自然科學版)
란주대학학보(자연과학판)
JOURNAL OF LANZHOU UNIVERSITY(NATURAL SCIENCES)
2009年
6期
101-103,110
,共4页
宜晨虹%蒋庆宇%慕青松%苗天德
宜晨虹%蔣慶宇%慕青鬆%苗天德
의신홍%장경우%모청송%묘천덕
颗粒系统%离散元方法%点缺陷%力链
顆粒繫統%離散元方法%點缺陷%力鏈
과립계통%리산원방법%점결함%력련
granular system%discrete element method%point defect%force chain
用离散元方法研究了带有不同数目点缺陷的二维颗粒系统在各向同性挤压和纯剪切时粒子间力链的几何分布特征,并与相同加载条件下无缺陷的颗粒系统力链几何分布特征做了比较,发现了点缺陷对颗粒系统力链的几何分布影响规律.
用離散元方法研究瞭帶有不同數目點缺陷的二維顆粒繫統在各嚮同性擠壓和純剪切時粒子間力鏈的幾何分佈特徵,併與相同加載條件下無缺陷的顆粒繫統力鏈幾何分佈特徵做瞭比較,髮現瞭點缺陷對顆粒繫統力鏈的幾何分佈影響規律.
용리산원방법연구료대유불동수목점결함적이유과립계통재각향동성제압화순전절시입자간력련적궤하분포특정,병여상동가재조건하무결함적과립계통력련궤하분포특정주료비교,발현료점결함대과립계통력련적궤하분포영향규률.
The discrete element method was used to study the force distribution of a two-dimension granular system under the condition of isotropic press and pure shear. Then the force chains' distribution of twodimension granular system with point defects was simulated under the condition of isotropic press and pure shear the results were compared without point defects. The affects of point defects to geometric distribution of the force chains in the two-dimension granular system were found.