elastic adj. 1.有弹力[弹性]的。 2.伸缩自如的,灵活的。 3.机变的,轻快的。 an elastic body 弹性体。 elastic braces 松紧吊裤带。 elastic force 弹力。 an elastic principle 灵活性的原则。 elastic ribbon 松紧带。 an elastic temperament 开朗的性格。 n. 橡皮线,松紧带,橡皮圈。 adv. -ally
Research on constitutive model of elastic creep damage of heat resistant steel under the condition of high temperature and high pressure 高温高压用耐热钢弹性蠕变损伤本构模型研究
Based on the relocating mesh model , according to heat conduction theory , elastic creep theory and finite element theory , simulation program for roller compacted concrete overflow dam is worked out through 3 - d finite element method 基于本文提出的计算模型,根据热传导理论、弹性徐变理论及有限元理论,作者编制了碾压混凝土溢流坝温度场及温度应力场的三维有限元仿真计算程序。
According to the theory of equivalent time , creep as a function of equivalent time is expressed . by fitting experimental data , parameters of creep in equivalent time field are obtained ; initial strain implicit solution of elastic creep equation in equivalent time field is derived 根据等效时间理论,将徐变表示为等效时间的函数,通过拟合试验数据,得出等效时间域弹性模量和徐变度公式的计算参数,推导了等效时间域的弹性徐变方程的初应变隐式解法。
In the light of the fact that elastic creep damage happens to heat resistant steel used as pressure elements like steam pipeline and steam pockets in heat - engine plants at high temperature and under high pressure , this article gives a complete constitutive description of the damage , building up the theory of phenomenology about creep damage 摘要针对火电厂中蒸汽管道与汽包类承压部件用的耐热钢,在承受高温高压时发生弹性蠕变损伤问题,给出完整的损伤本构描述,建立起唯象学蠕变损伤理论。
Element constitutive model is adopted to testify the necessity of non - stationary parameters . one - dimensional non - stationary visco - elastic creep equation of rock is given . according to data contrast of theory and experiment , non - stationary visco - elastic constitutive model more accurately reflects the deformation capability of rock than the constant one 建立了一维情况下,非定常粘弹性模型的蠕变方程,通过理论计算结果与试验结果的对比,发现非定常粘弹性模型比定常粘弹性模型更为准确的反映了岩石的粘弹性变形性能。
In this article , according to heat conduction theory , elastic creep theory and finite element theory , the temperature field and creep stress field in the arch dam during construction and operation are simulated and analyzed by means of three dimensional finite element relocating mesh method , and the distribution law of the temperature field and creep stress field in the arch dam during construction and operation are systematically studied , and according to the construction process of concrete arch dam , the effect of lamination placement , construction interval , elastic modulus change , thermal insulation change , surrounding temperature change , concrete creep and autogenous volume change on thermal stress in the arch dam are also considered 论文根据热传导理论、弹性徐变理论及有限元理论,用三维有限元浮动网格法对拱坝施工期和运行期温度场、徐变应力场进行了全过程仿真分析,较为系统的研究了混凝土拱坝施工期和运行期温度场、徐变应力场的分布规律,在分析中按照混凝土拱坝施工过程,考虑了混凝土分层浇筑、施工间隙时间、弹模变化、绝热温升过程、环境温度的变化、混凝土徐变、自生体积变形等因素对坝体温度应力的影响。