比较了获得拉伸蠕变破坏荷载-时间曲线以及蠕变应变-时间曲线的试验方法,给出了外推这两种蠕变曲线数据的处理步骤。
The methods of creep test to get both curves of tensile creep rupture load vs time and creep strain vs time are compared. The procedures to extrapolate the two types of creep curves are presented.
形成岩石全应力应变曲线的时间序列反映了岩石内部节理裂隙趋向贯通的演化进程,砂岩节理裂隙系统在峰前阶段处于不同程度的混沌状态。
Evolution of rock joints into transfixion is described by the time series from strain-stress curves, and the state of joint system in sandstone is chaotic before its ultimate state.
研究了试样总应力、循环孔隙水压力、有效应力随时间的变化规律及试样有效应力与轴向应变的关系曲线。
Curves of total stress and time, of cycle pore water pressure and time, of effective stress and time, of effective stress and axial strain are respectively studied.
得出了在恒应变、应力条件下应力、应变—时间曲线及数据。
Reduced curve and data in the constant strain and stress were obtained.
同时,实验研究获得的钨合金壳体危险截面处应变—时间历程曲线,既可以为壳体设计提供理论支撑,又为钨合金壳体侵彻混凝土靶板的侵彻模型和数值仿真建立了验证标准。
The strain history achieved may provide a base in shell design and verify theoretical models and numerical simulations of tungsten alloy shell impacting and penetrating normally into concrete targets.
零件变形各阶段的应变速率控制在7475合金的应变速率范围内,证明压力-时间曲线设计合理。
The strain rate of each forming stage is controlled in the range of 7475 alloy's strain rate. This shows the design of pressure-time curve is reasonable.
实验中得到风挡玻璃对称中心线上多点位移时间曲线及风挡玻璃表面的应变时间曲线。
The displacement history curves of different points in the symmetry center line of windshield glass and the strain history curves of many points on the surface of windshield glass are obtained.
分析了毛坯的应变场分布,典型节点外径、壁厚、轴向伸长量随时间的变化曲线,对整个成形工艺及变形机制有较好的动态认识。
Simulation results show strain distribution of workpiece and how outer diameter, thickness, axial elongation of some typical nodes change with time.
分析了毛坯的应变场分布,典型节点外径、壁厚、轴向伸长量随时间的变化曲线,对整个成形工艺及变形机制有较好的动态认识。
Simulation results show strain distribution of workpiece and how outer diameter, thickness, axial elongation of some typical nodes change with time.
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