土体总的变形由三部分组成:即弹性应变、与体积屈服机制相关的塑性应变和与剪切屈服机制相关的塑性应变。
The total deformation of soils consists of three parts: elastic strain, plastic strain related to volumetric yielding mechanism and plastic strain related to shear yielding mechanism.
总的粘着摩擦系数被表示为弹性接触区与塑性接触区的粘着摩擦系数的组合。
The total adhesive friction coefficient is expressed as a combination of adhesive friction coefficients in elastic and plastic contact regime.
计及作用于接触斑点上的切向力,通过比较作用于接触斑点上的法向弹性载荷与法向塑性载荷,确定了区分弹性接触与塑性接触区域的临界接触斑点面积。
Considering the tangential force applied on a contact spot, the critical area demarcating the elastic and plastic regimes is obtained by comparing the normal elastic load with the normal plastic load.
纯弹性断裂总是极少的,因之在加载应力作用下,裂纹顶端总是存在着或大或小的塑性区,存在着裂纹与位错的交互作用。
Pure elastic fracture is always rare, so th at under the action of stress, a plastic zone(large or small), and interactions between crack and dislocations always exist at the crack tip.
它一般不能用物理指标或弹性塑性理论模型方法确定其承载力与变形模量。
Generally its bearing capacity and deformation modulus cannot be determined by the physical parameters or by the method of elastic - plastic theoretical models.
等效塑性应变的幅值、动能、弹性应变能及耗散能随时间的变化规律与功能梯度材料组份成分沿厚度的变化密切相关。
The distributions of equivalent plastic strain, dissipated, kinetic and elastic strain energies are all dependent on the gradient distribution of the composition.
但这些研究多建立在弹性阶段分析的基础之上,对于弹塑性阶段的选波采用了与弹性阶段相同的特征周期。
But these researches all established on the stage of elasticity analysis, the same characteristic period of response spectrum was used for the stage of elastoplastic analysis.
本文论述了金属纺织器材的刚度与弹性、加工硬化、塑性变形及断裂形式。
This paper deals with rigidity, flexibility, processing hardness, plastic deformation and forms of breakage.
由于金刚石的硬度与弹性模量极高,在烧结时很难发生塑性变形。
Because of the excellent hardness and elastic module of diamond, it is difficult to get plastic deformation when sintering.
该方法可以考虑弹性区与塑性区的区别,并可以考虑不同的流动法则。
In this method, the elastic area and plastic zone can be distinguished and the different flow rules can be considered.
通过与弹塑性分析结果比较发现,简单的弹性补偿法能够很好的评估复杂三维结构的塑性承载能力。
It is found that the simple elastic compensation procedure can provide good estimates of bearing capacity for complex three-dimensional structures.
最后对三种结构型式的拱顶储罐的变形方式、应力状态、塑性变形历史、塑性极限压力、弹性失稳临界压力进行了分析与对比。
The analysis and contrast of deformation pattern, state of stress, plastic deformation history, plastic limit load and limit load of elastic buckling are analyzed and contrasted.
塑性混凝土与砂石地基结合性好,弹性模量低,用作防渗墙具有较好的变形性能。
For plastic concrete, due to its stronger adherence to sand and stone base and its lower elastic modulus, and its better deformation performance, it is used in cutoff wall.
运用弹性力学与塑性力学理论,对常用弯管工艺过程进行受力分析。
The force with process of bending pipe has been quantitatively and qualitatively analyzed in the theories of elasticity mechanics and plasticity mechanics.
通过计算瞬时应变的大小与屈服限建立粘弹性变形和粘塑性变形的判断准则。
Under the instantaneous strain and yield limit calculated, judgement rule about viscoelastic and viscoplastic is established.
采用高聚合度PVC与增塑剂等共混、复配制备了PV C热塑性弹性体(TPVC),对TPVC的冲击回弹和压缩性能进行了研究。
PVC thermoplastic elastomer (TPVC) was prepared by plasticization, blending and compounding of high polymerization degree PVC, and its impact resilience and compression properties were investigated.
研究了羟甲基化木质素用量对PVC/NBR热塑性弹性体结构与性能的影响。
The influences of lignin-resin(treated with formaldehyde) on the structure and properties of PVC/NBR thermoplastic elastomers were studied.
为解决路基土力学课题,分析时多采用与岩土材料力学性质相适应的弹性、粘弹性以及塑性理论。
Usually, Elastic, plastic and viscoelastic theories are used in FEM to solve soil mechanics problems of embankment.
概述了热塑性弹性体(TPE)合成、性能及应用方面的最近进展与今后的动向。
The Recent development and new bends for Thermoplastic Elastomer TPE were reviewed, including the synthesis, properties and Application of TPE.
介绍了氰酸酯树脂与热塑性树脂、橡胶弹性体、热固性树脂及含有不饱和双键的化合物共混或共聚改性的研究现状。
In this paper, the properties modification of cyanate resin by blending or co-polymerization with thermoplastic, rubber, thermoset resins and olefinically unsaturated compounds is introduced.
比较并分析了热塑性聚氨酯弹性体(TPU)双螺杆法与传送带法生产工艺之间的差别。
The difference between TPU twin screw continuous reactor and conveyer belt production method was indicated and analysized.
弹塑性基体复合材料的特征相变温度偏移随纤维体积分数的变化规律与弹性基体复合材料的变化规律不同,其热相变特性有显著的区别。
The results show that the characteristics of thermal transformation behavior of SMA composites with elastic matrix are different markedly from those with elastoplastic matrix.
这类超弹性-塑性材料中可以发生空穴的生成现象,得到了在表面拉仲作用下球体中空穴生成时空穴半径与临界拉伸之间的关系式和临界拉伸。
Cavitation phenomenon may be found in this elastic-plastic material. Formulae between the cavity radius and the stretch were obtained. The critical stretch was given too.
本文提出了一种新的弹性与弹塑性问题的对称耦合解法。
This paper presents a new symmetric coupling approach of BEM and FEM of elastic and elastoplastic problems.
然而,至今只有岩土极限分析与塑性力学中考虑岩土体的内摩擦力,而在弹性理论与能量理论等诸方面均未体现。
However, until now the internal friction is only considered in limit analysis and plastic mechanics, but not included in elastic mechanics and energy theory.
介绍了热塑性弹性体新品种的特性与用途。
The properties and applications for new veritietie were of thermoplastics elastomer are reviewed in this paper.
聚烯烃热塑性弹性体(TPO-101)是以乙烯与辛烯共聚物同聚烯烃树脂经反应共混而成的热塑性弹性体。
Polyolefin thermoplastic elastomer (TPO-101) based on ethylene and octene copolymer with polyolefin resin formed by the reactive blending of thermoplastic elastomer.
研究结果表明,弹性区内任一点的应力大小与垂直地应力有关,而塑性区内任一点的应力与原始垂直地应力无关;
The study results show that the stresses in elastic zone are related with the vertical geostress, but the stresses in plastic zone are opposite.
研究结果表明,弹性区内任一点的应力大小与垂直地应力有关,而塑性区内任一点的应力与原始垂直地应力无关;
The study results show that the stresses in elastic zone are related with the vertical geostress, but the stresses in plastic zone are opposite.
应用推荐