摘要
以均匀立方体试块作为各向同性的、典型的颗粒介质单元集合,通过试验,分析在外部集中荷载作用下有序对称排列和非对称排列集合应力点分布的变化情况,研究离散颗粒介质的拱效应特征及非线性传递过程,并用Markov链的分枝过程描述应力传递的变化规律.
Taking a homogeneous cubic specimen as an isotropic pack composed of typical grained medium units,the variation pattern of stress point distribution in symmetric as well as asymmetric orderly disposed packs under an external concentrated load is analyzed with the help of experiment.The 'arch' effect and nonlinear transfer process of its disperse grained medium are investigated,and the variation pattern of stress transfer is described by using the ramified process of Markov links.
出处
《兰州理工大学学报》
CAS
北大核心
2004年第6期106-109,共4页
Journal of Lanzhou University of Technology
基金
甘肃省自然科学基金(ZS022 A25 15)
关键词
离散颗粒集合
分枝过程
应力点
disperse grain pack
ramified process
stress point
