CAJ | 학술논문

首先针对闸门止水橡胶的超弹性能对其数值分析起决定性作用。根据止水橡胶单双轴拉伸和纯剪切实验，得到了其名义应力应变曲线；对通用的橡胶本构模型进行了系统的对比与分析，给出了在实验数据齐全和不全情况下，止水橡胶数值仿真最优本构模型；其次采用不同的橡胶黏弹性本构模型，通过对某超高坝底孔闸门止水有限元计算，得出止水应力松弛失效时间，通过与闸门实际运行资料对比，得出burgers本构模型是最合理的；改变了以往设计阶段采用标准线性固体模型来预测止水失效时间的做法。该研究为止水的生产设计提供了系统的参考，具有较高的理论意义与实用价值。
수선침대갑문지수상효적초탄성능대기수치분석기결정성작용。근거지수상효단쌍축랍신화순전절실험，득도료기명의응력응변곡선；대통용적상효본구모형진행료계통적대비여분석，급출료재실험수거제전화불전정황하，지수상효수치방진최우본구모형；기차채용불동적상효점탄성본구모형，통과대모초고패저공갑문지수유한원계산，득출지수응력송이실효시간，통과여갑문실제운행자료대비，득출burgers본구모형시최합리적；개변료이왕설계계단채용표준선성고체모형래예측지수실효시간적주법。해연구위지수적생산설계제공료계통적삼고，구유교고적이론의의여실용개치。
Hyperelasticity of rubber waterstop material in gates plays a decisive role in numerical analysis.The mechanical behaviors of a vulcanized rubber were studied here with a uniaxial tensile test,a biaxial tensile one and pure shear one.Some nominal stress-strain curves for different strain rates were obtained.A systematic comtrast and analysis for general rubber constitutive models were performed.In the cases of complete experimental data and incomplete experimental data,the optimal constitutive models for rubber waterstop material were derived.With the finite element calculation for waterstop around the bottom outlet of a certain high dam,the different waterstop stress-relaxation times were obtained by adopting different viscoelastic constitutive models.Compared with the real situation.Burgers constitutive model was recommended to be used.The study results provided a reference for waterstop material design and fabrication.