This paper has compared the advantage and disadvantage of the constant displacement method, constant loading method and slow strain rate method on researching the stress corrosion.
比较了恒位移法、恒载荷法和慢应变速率法研究应力腐蚀时的优缺点。
For brittle material testing, the governing equation of input waveform for attaining constant strain-rate loading is given.
给出了测试脆性材料时实现恒应变率加载的加载条件。
On the basis of the fractional calculus operator theory, the stress-strain relation of soft soil under the condition of loading with constant strain rate is proposed.
利用分数阶微积分理论提出等应变率加载情况下的软土应力—应变关系。关系式显示应力—应变之间呈乘幂函数关系。
The strain rate was changed stepwise several times; and stress relaxation tests and a set of creep tests were performed during otherwise monotonous loading at a constant strain rate.
试验不仅实现了应变率逐步变化加载过程，同时也实现了蠕变加载和应力松弛过程。
Next, unloading-reloading cycles are repeated in constant loading rate test with Sanjome andesite and Inada granite; and unloading curves at many points along stress-strain curve are obtained.
其次，对三城目安山岩和稻田花岗岩在恒定速率下进行循环加载卸载试验，得到了应力—应变曲线上很多点处的卸载曲线。
Next, unloading-reloading cycles are repeated in constant loading rate test with Sanjome andesite and Inada granite; and unloading curves at many points along stress-strain curve are obtained.
其次，对三城目安山岩和稻田花岗岩在恒定速率下进行循环加载卸载试验，得到了应力—应变曲线上很多点处的卸载曲线。
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