Characteristics of shrinkage stress of wood during drying under high temperature and high pressure steam conditions.;
高温高压蒸汽干燥过程中木材的收缩应力特征
Polymerization shrinkage stress of composite resin;
复合树脂收缩应力研究进展
Simplified calculation and analysis for shrinkage stress with in ultra-long wall with soleplate;
带底板超长墙收缩应力的简化计算与分析
Aiming at the common occurrence of inclined cracks of cast-in-place concrete slab,this paper chiefly analyzes the 45 diagonal through cracks with an example in engineering practice,and applies the number analysis to calculate 1/8 places of biggest and main tensile stresses in the case of the shrink stress and temperature stress.
针对目前现浇楼板角部多出现斜裂缝的现象,结合工程实例对板角45°斜裂缝进行了着重分析,并采用解析分析计算收缩应变和温度应变以及在板角1/8跨范围的最大主拉应力,且指出墙体与楼板混凝土的收缩差以及二者之间的温差在楼板中所引起的温度收缩应力是板角开裂的主要原因,为工程实践提供理论依据。
The concrete cracks in sluice pier wall of New Kaituo River were checked, and it was found that the temperature stress and shrink stress are the main reasons for cracks formation.
对新开沱河节制闸墩墙的裂缝进行了检测,分析认为温度应力及收缩应力是裂缝产生的主要原因。
According to crack and leakage problems of Shanghai subway stations, authors analyze the influence of temperature shrink stress of large volume concrete on cracking, and deduce such calculation formulas applicable for temperature shrink stress, crack separation and width of subway station structures.
针对上海地铁车站的开裂渗漏问题 ,分析了大体积混凝土的温度收缩应力对开裂的影响 ,得到了适用于地铁车站结构的温度收缩应力、裂缝间距、裂缝宽度的计算公式 ,在技术上提出解决开裂问题的思路 ,并结合工程实例 ,用计算结果论证了所提方法的可行性。
Calculation of semi-rigid pavement contraction stress;
公路半刚性基层收缩应力的计算方法
This paper analyzes the temperature field, the contraction stress, and the thermal stress in concrete arch culverts using Finite Element Method.
采用三维有限元模型 ,对混凝土拱涵进行温度场、收缩应力和温度应力分析。
High spot put on contraction stress influence factors and it's affection on UV-adhesive's performance.
本论文通过大量试验,合成、筛选了一批单体和预聚物,测定了不同胶粘剂配方的各项性能,重点研究收缩应力的影响因素以及它对UV固化胶粘剂粘接性能的影响;研究了通常会被忽视的固化工艺对材料的影响,通过对不同辐照距离,胶层厚度等对材料性能影响的研究,确定试验室条件下的最优固化工艺;此外还研究了玻璃化转变温度、固化度、光引发剂以及助剂等其它因素对UV固化胶粘剂性能的影响,合成了共聚丙烯酸酯改性环氧丙烯酸酯预聚物,产物克服了环氧丙稀酸酯的低温脆性,改善了对玻璃的粘接效果。
Based on the principles of the cracks forming in concrete floorslab ,this article analyses the cause for the cracks` appearing,it is pointed that shrinking stress, temperature difference stress and load stress are the main factors , and some preventions are advanced accordingly.
从混凝土构件裂缝产生的机理入手 ,通过分析混凝土楼板裂缝产生的原因 ,认为混凝土的收缩应力、温差应力及本身所受荷载应力是产生裂缝的主要原因 ,并提出了相应的防治处理措
Experimental Investigation and Theoretical Modeling on Early-age Shrinkage Cracking in Concrete;
混凝土结构早期收缩裂缝的试验研究与收缩应力场的理论建模
Shrinkage stress was found to increase linearly with cure temperature.
我们发现收缩应力随固化温度直线增加。
Temperature Shrinkage Stress Analysis and Crack Control for Basement Wall;
地下室侧墙温度收缩应力分析与裂缝控制
Resin composite shrinkage stress distribution in classⅠcavity of mandibular molar using 3D finite element analysis
磨牙Ⅰ类洞复合树脂收缩应力的有限元分析
Simulation of composite polymerization shrinkage using 3D finite element model
三维有限元法分析复合树脂收缩应力的研究
It is necessary to consider the influence of shrinking and temperature stresses when using reinforced stress to measure reinforced concrete strut axial forces.
采用钢筋应力计量测钢筋混凝土支撑轴力时，收缩应力和温度应力修正是必要的。
Abstract: It is necessary to consider the influence of shrinking and temperature stresses when using reinforced stress to measure reinforced concrete strut axial forces.
文摘:采用钢筋应力计量测钢筋混凝土支撑轴力时，收缩应力和温度应力修正是必要的。
Experimental Research on Shrinkage and Creep of Prestressed Steel Reinforced Concrete;
预应力型钢混凝土收缩徐变试验研究
muscular effort, contraction
肌肉的力量、 收缩
Analysis of temperature variation and shrinkage effects on ultra-long prestressed concrete structure
超长预应力混凝土结构温差收缩效应分析
Research on the stress-strain model of compensated shrinkage concrete flat plate
补偿收缩混凝土平板构件的应力—应变模型研究
A PERMEABILITY MODEL CONSIDERING THE EFFECTIVE STRESS AND COAL MATRIX SHRINKING EFFECT
考虑有效应力和煤基质收缩效应的渗透率模型
Development and Application of Tester with Twin Bar for Alloy Solidification
双试棒合金凝固收缩力试验机的研制及应用
Calculation of Shrinkage Compensation Concrete Wall Stress Considering Temperature History Effect
考虑温度历程的补偿收缩混凝土墙应力计算
Welding Shrinkage Deformation and Residual Stress of Duplex Stainless Steel 2205
2205双相不锈钢焊接收缩变形与残余应力研究
Study of strain rate imaging in evaluating the postsystolie shortening in ischemic myocardium
应变率成像评价缺血心肌收缩后收缩
The additional shear and normal stress of fiber become large with the addition of the contract ratio.
纤维附加剪应力和附加正应力差随着收缩比的增大而增加。
Research on Temperature Effects and Shrinkage-Creep Analysis for Long-span Prestressed Concrete Continuous Rigid Frame Bridges;
大跨径预应力混凝土连续刚构桥温度效应与收缩徐变效应分析