| 1. | Numerical simulation of strain softening and localization for concrete materials
混凝土应变软化与局部化的数值模拟 |
| 2. | Research on swelling and strain softening model of swelling rock in hongshanyao
红山窑膨胀岩的膨胀和软化特性及模型研究 |
| 3. | Size effect analysis on strain softening of quasi - brittle materials considering strain gradient effect
准脆性材料试件应变软化尺度效应理论研究 |
| 4. | The unified limit load solution of fiber - reinforced concrete cylinders considering the strain softening of material
考虑应变软化纤维增强混凝土圆管极限荷载统一解 |
| 5. | The influencing element and the equation of the shear strength of the no viscous moraine and gravel , and strain softening , dilatancy ( shrinkage ) were analyzed
分析了堆石料等无粘性粒状土的抗剪强度影响因素和合理抗剪强度表达式，应变软化、剪胀等性质。 |
| 6. | Abstract : by analyzing strain softening micromechanical damage process of rock , the softening micromechanical damage model of rock is established and the softening constitutive relation of rock under one _ dimension tension is also obtained
文摘:通过分析岩石材料应变软化的细观损伤力学过程，建立了岩石软化阶段的细观损伤力学模型，从而得到单向拉伸状态下岩石软化过程的应力应变本构关系 |
| 7. | Look back generally to elaborate the development and present situation of the stress - strain model of soil . according to a great deal of data of the test and research of zipingpu reservoir concrete faced rockfill dam ' s material , suggest the more reasonable stress - strain - volume change equation to contain strain softening , dilatancy ( shrinkage ) of the no viscous moraine and gravel . suggest the method to gain the model ' s parameter
较全面回顾阐述了土体本构模型的发展和现状，根据紫坪铺面板堆石坝筑坝料的大量试验研究，提出相对合理的应力应变关系方程，以反映土体的应变软化、剪胀性，并提出模型参数的求取方法，求取模型参数。 |
| 8. | So this model can simulate all kinds of properties of concrete after loading , such as nonlinear stress - strain relationship for concrete , stiffness phenomenon under cycle load , phenomenon compression and expansion for concre te with shearing , strain soften phenomenon while
可以模拟混凝土受力后的各种特性，如混凝土的非线性应力一应变关系，循环荷载作用下的刚度退化现象，剪力引起的混凝土的压缩和膨胀现象和超过强度极限的应变软化现象等，且这种模型的最大优点是表达形式简单，模型参数比较容易确定，便于应用。 |
| 9. | The strain softening of dam body and foundation is the necessary condition for dam instability . according to observation data of dam cracks , a gray cusp catastrophe model is established to judge the stability of the crack . according to the slope observation data of a certain hydropower plant , a nonlinear dynamic model is developed by means of reversion and the lyapunov exponent spectrum , and the lyapunov information dimension are calculated for judgement of the stability of the slope
（ 5 ）基于变分原理，研究建立了能量形式的失稳准则，并说明坝体、岩基的材料具有应变软化的性质，是大坝失稳的必要条件；并利用大坝的裂缝实测资料，建立了相应的灰色尖点突变模型，由此判断裂缝的稳定性；根据某水电站库区滑坡体的变形实测资料，反演其非线性动力学模型，进而计算lyapunov指数谱、 lyapunov信息维来判定边坡的稳定性及稳定程度。 |
