下胀 meaning in English

down-bulge

Thirdly writer , using linear elastic theory and finite element program ( ansys ) , analyzed expanding bolt pullout test . fifthly , writer using the modified mohr - coulomb failure theory , on the base of curving failure surface , derived a theoretical formula between pullout force and compressive strength . then the thesis compared the formula with the strength - detecting formula of expanding bolt pullout method
本文采用ansys有限元程序对胀栓拔出法试验过程进行弹性理论分析；以修正的摩尔-库仑破坏准则，在拟合实际破坏面的基础上推导出极限状态下胀栓拔出法的混凝土拔出力与混凝土抗压强度的理论公式，并把该公式与胀栓拔出法测强公式进行了比较。