抗裂圆环的干缩应力分析 Ⅶ.均匀干燥时徐变的影响

Shrinkage Stress Analysis on Breaking Ring—Ⅶ.Influence on Creep Deformation for Homogeneously Drying Process

采用弹性力学方法研究了徐变变形对圆环抗裂试验结果的影响。通过研究发现,位移、应变和应力均随徐变变形的增大而减小。缓慢干燥时,徐变变形能够减小水泥基材料圆环开裂的趋势。

The method of elasticity is used to study the influence of the creep on the experimental results of breaking ring. It is discovered by research that the displacement, strain and stress decrease with the increase of the creep. When the dry process is stow, the creep decreases the cracking possibility of the ring of cementing material.