微尺度化学
热传导
材料科学
有限元法
开裂
机械
联轴节(管道)
热的
热力学
复合材料
数学
物理
数学教育
作者
Vít Šmilauer,Tomáš Krejčí
标识
DOI:10.1615/intjmultcompeng.v7.i2.50
摘要
Temperature rise in hydrating concrete presents a formidable problem that may lead to significant acceleration of hydration kinetics, early-age cracking, and decreased durability. Multiscale formulation is proposed, coupling a cement hydration model on the microscale with the finite element method (FEM) heat conduction problem on the macroscale. Particularly, discrete hydration model predicts heat evolution controlled by macroscale temperature, while the FEM satisfies heat balance equation during thermal conduction. Two- and three-dimensional validations show a reasonable temperature conformity with an access to the local quantities, such as a degree of hydration.
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