Time Effects Relate to Particle Crushing in Granular Materials
Sands exhibit patterns of time effects different from those observed in clays.It appears that time effects in sand are associated with crushing of particles,and a mechanistic picture of time effects in granular materials is constructed in which time effects depend on particle crushing by static fatigue,interparticle friction,and grain rearrangement.The phenomenon of static fatigue or delayed fracture of individual particles seems to be at the root of time effects in sand.While creep and relaxation are caused by the same underlying phenomenon,it appears that results of creep tests cannot be obtained from results of relaxations tests,and vice versa.
creep sand static fatigue time effects
Poul V.Lade
Department of Civil Engineering The Catholic University of America Washington,D.C.20064,U.S.A.
国际会议
北京
英文
265-269
2012-10-15（万方平台首次上网日期，不代表论文的发表时间）