摘要
谷物烘干时，谷粒内部的热－湿应力太大，可能使谷粒出现裂纹．基于这一实际问题，本文研究了当初始湿度和平衡湿度给定时，Ｍａｘｗｅｌ粘弹性圆球内的湿应力分布，及其随时间的变化情况．
Internal cracks in grain kernel may occur due to highlevel of thermo-hydro-stresses during drying. Based on this actual problem,the hydro-stress distributions in a Maxwell viscoelastic sphere are studied wheninitial moisture concentration and equilibrium moisture concentration are given, and the variations of the hydro-stress with the lapse of time are discussedas well in this paper.
出处
《力学与实践》
CSCD
北大核心
1998年第3期17-19,共3页
Mechanics in Engineering
基金
国家自然科学基金
关键词
粘弹性
圆球
湿应力
湿度
hydro stress, viscoelasticity, sphere
