| 1. | Prager theory of plasticity
普拉格塑性理论 |
| 2. | Drucker - prager criterion
普拉格准则 |
| 3. | The ansys large finite element soft ware elastoplastic analysis is also used in the above all soil conditions with drucker - prager model
同时文中还用ansys有限元软件对这两类地基情况进行了弹塑性分析，分析中地基土采用drucker prager本构模型。 |
| 4. | In order to simulate the deformation behavior of granular materials ( subgrade soils and subbase materials ) , an elasto - plastic constitutive model , the drucker - prager ( dp ) model , was used in the analysis
为了比较真实地模拟路基及底基层粒料的变形行为，采用弹塑性dp准则。 |
| 5. | This index , based on the coverage index ( c ) of prager ( 1996 ) , not only presents the estimatabilty of observed fishery data , but also expresses the risk of the models results
这一指数是在prager ( 1996 )的coverage指数( cindex )的基础上形成的， re指数既体现了观测数据的生物学上的可估程度，又体现了模型结果的风险程度。 |
| 6. | ( 2 ) based on the detail analysis on soil models and machine gun firing dynamics , the drucker - prager model is introduced to study machine gun firing dynamics , the soil is modeled like a box by finite element
在详细分析目前土力学中出现的土壤的各种本构模型及机枪发射动力学研究特点的基础上，指出采用drucker ? prager屈服准则的弹塑性模型是机枪发射动力学研究中应该采用的主要的土壤本构模型。 |
| 7. | The study sets up 3 - d definite element models in terms of the seismotectonics of danjiangkou reservoir area . the models use drucker - prager yielded criterion to stimulate material property , which consider the influences of average stress and the second main stress on material strength
本文则根据丹江口库区的地质构造建立了三维有限元模型，采用drucker - prager屈服准则模拟岩石特性，即考虑了静水压力对材料屈服强度的影响，又考虑了中间主应力的影响。 |
| 8. | In this paper , in order to carry out damage analysis of concrete structure , concrete ' s initial damage and damage threshold value that is some significant to the establishing of concrete damage model are studied through the stretch and compress experimentation of concrete . in addition , in view of significant of concrete damage failure in analysis of structure , in this paper rule of concrete damage failure based on both definition of damage energy release rate and drucker - prager rule are also discussed
为了对混凝土结构进行损伤力学的计算分析，本文通过混凝土试件的拉伸和压缩试验，利用损伤力学的理论，对混凝土结构的初始损伤进行了分析，得出了具有一定参考价值的初始损伤值及峰值应力对应的损伤值，其对于混凝土损伤模型的建立及该模型在工程中的应用具有一定的意义。 |
| 9. | In other words , the process of analyzing relaxation zone related to one safety factor can also be regarded as the process of searching potential slide surface related to the same safety factor . elastic wedge model is used for analysis of relaxation zone of cutting homogeneous slope . on the basis of elastic plane - strain theory , the relaxation zone can be calculated according to mohr - coulomb or drucker - prager law and single tension intensity principle which are both related to one safety factor after three - dimensional stress field of the cutting slope is got
提出均质边坡开挖松弛区可以用弹性理论中的楔形体理论分析，在平面应变问题的基础上得到开挖坡体的三向应力场之后，可运用考虑安全储备后的强度条件(主要为摩尔?库仑或德鲁克?布拉格强度准则和单轴抗拉强度准则)解析坡体分步开挖过程中的松弛区范围，给出了具体的计算步骤，并通过算例较详细地说明了操作过程。 |
| 10. | The model adopts eight - nodes isoparametric quadrilateral element , drucker - prager ideal elastic - plastic stress - strain model and the contact element , which is used to simulate the interface between the wall and soil . accordingly , a flow chart about the arithmetic of contact is introduced in this paper
模型采用八结点等参平面四边形单元、 drucker - prager理想弹塑性本构模型以及用接触面单元模拟了土与围护结构的相互作用，并给出了相应的接触面模拟的接触算法流程。 |
