苹果蠕变特性与静载损伤机理的研究  

A Study on Creep Properties and Static Loading Damage Mechanisms of Apple

作　　者：李小昱[1] 朱俊平[1] 王为[1] 王耀忠 

机构地区：[1]西北农业大学机械与电子工程学院

出　　处：《西北农业大学学报》1997年第6期64-68,共5页Journal of Northwest Sci-Tech University of Agriculture and Forestry（Natural Science Edition)

基　　金：陕西省自然科学基金

摘　　要：在描述苹果蠕变现象四元件Ｂｕｒｇｅｒｓ模型的基础上，建立了四元件五参数模型，研究了静载损伤与所受载荷、作用时间、变形量之间的关系，提出了苹果蠕变损伤的主要原因是其变形量超出了临界变形值，并且模型的粘弹性系数与损伤体积有着显著的线性相关关系。The four elementsfive parametres model was established to describe the creep phenomena of apple based on the four elements Burgers model.Relationships of static damage and loading,as well as time and deformation were investigated.The reason of creep damage was deformation values in excess of threshhold.There existed a remarkable linear correlation between the models viscoelastic coefficients and bruise volume.

关 键 词：苹果 蠕变 静载 损伤 

分 类 号：S661.109.3[农业科学—果树学]