Real time thermal field analysis on Wudongde super high arch dam during construction

During concrete dam construction,concrete temperature monitoring and control is key to ensuring dam concrete quality and construction safety.In this study,a 2D thermal field restructuring method relating to the Kriging temperature interpolation is proposed.Based on dam site monitoring data of distributed optical fiber,the results indicated that the proposed restructuring method can be applied to effectively and quickly obtain 2D real thermal field.The evolution law of thermal field in early ages and temperature differences of concrete blocks based on the thermal field data are obtained.It also can be concluded that the proposed restructuring method could help obtain accurate and reliable restructuring monitoring data.

非均匀温度场下变物性二维功能梯度材料板的瞬态热应力分析

研究了非均匀温度场下变物性二维功能梯度材料板的瞬态热应力分布问题。并且建立了Al1100-Ti6Al4V-ZrO_2的二维功能梯度材料板的结构模型,构造了二维功能梯度板的有限元求解方法,计算得到了:1)二维功能梯度材料板在不同时刻的瞬态热应力分布规律;2)变物性(组分系数沿板长度和宽度方向变化)二维功能梯度材料板的瞬态热应力分布;3)非均匀温度场下(线性温度分布、非线性温度分布及周期性温度分布)的二维功能梯度材料板的瞬态热应力分布。