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temperature and crack
相关语句
  温度与裂缝
     Humble Opinions on Control of Temperature and Crack of Mass Concrete in Xiaolangdi Project
     刍议小浪底工程大体积混凝土的温度与裂缝控制
短句来源
     Temperature and Crack Control of Mass Concrete in Pile Cap and Tower Pedestal of Sidu River Bridge
     四渡河大桥承台塔座大体积混凝土的温度与裂缝控制
短句来源
     Research on Construction Temperature and Crack of Concrete for Highway and Bridge
     浅谈公路与桥梁混凝土的施工温度与裂缝
短句来源
     Discussion on the Construction Temperature and Crack of the Concrete Shallowly
     浅谈混凝土的施工温度与裂缝
短句来源
     Discussing the construction temperature and crack of concrete
     浅谈混凝土的施工温度与裂缝
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  “temperature and crack”译为未确定词的双语例句
     2) To explain the physical mechanics characteristics of the concrete and computing methods to calculate the temperature and crack resistance of the concrete;
     2)阐述了混凝土的基本物理力学性能,提出大体积混凝土温度计算的方法和步骤以及大体积混凝土基础抗裂计算方法。
短句来源
     Study on the Temperature and Crack Prevention of Concrete of Hydraulic Structure
     水工混凝土温度与防裂技术研究
短句来源
     TEMPERATURE AND CRACK CONTROL TECHNOLOGY FOR LARGE-VOLUME CONCRETE IN CONSTRUCTION OF BRIDGE TRESTLE
     桥梁承台大体积混凝土施工中的温度测控及防裂技术
短句来源
     RELATIONSHIP BETWEEN TEMPERING TEMPERATURE AND CRACK INITIATION LIFE FOR 40Cr STEEL
     回火温度对40Cr钢疲劳裂纹萌生寿命的影响
短句来源
     The present paper is focused on the theoretical approach to building a mathematical model of delayed hydride crack developed in hydride-forming metals due to the precipitation at the crack tip under the conditions of constant temperature and crack velocity,plane strain and insignificant hydride.
     在温度和裂尖速度恒定、平面应变和小范围氢化物沉淀条件下,给出了考虑氢扩散、氢化物沉淀、非机械能量流和氢化物/固溶变形等多物理场的耦合效应的数学模型。
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  相似匹配句对
     The temperature for R.
     越冬卵孵化起点温度低于4℃。
短句来源
     T-temperature, K;
     T—溶液温度,K;
短句来源
     Construction temperature and the crack of concrete
     浅谈混凝土的施工温度与裂缝
短句来源
     On Constructive Temperature and Crack of Concrete
     浅谈混凝土的施工温度与裂缝
短句来源
     Construction Temperature and Crack of Concrete
     混凝土的施工温度与裂缝
短句来源
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  temperature and crack
A dynamic value ofKId was 70 pct ofKIc at the same temperature, although in the temperature and crack velocity range investigated the specific fracture surface energy varies by a factor of 6.
      
The dependence of the dynamic plane-strain fracture toughness,KId, on temperature and crack velocity was measured for propagating cracks in 1020 steel.
      
The dependence of the fracture toughness of mi steel on temperature and crack velocity
      
In this report, hydrogen-assisted cracking (HAC) behavior of low-alloy steel was evaluated using a constant elongation rate tensile test, and the temperature and crack tip strain rate effects were observed.
      


In this paper, the fracture behavior of nitramine propellant under different temperatures and crack lengthes has been studied through three methods, i. e. compact-tension, three point bending and single-side crack stretching. On the experimental conditions, the range of the fracture toughness K_c of the tested propellant are 0.97~4.23 MPa·m~(1/2) for compact-tension, 0. 65~2. 08MPa·m~(1/2) for three point bending and 1. 48~6. 17MPa·m~(1/2) for single-side crack stretching. It is observed that the value of K_c...

In this paper, the fracture behavior of nitramine propellant under different temperatures and crack lengthes has been studied through three methods, i. e. compact-tension, three point bending and single-side crack stretching. On the experimental conditions, the range of the fracture toughness K_c of the tested propellant are 0.97~4.23 MPa·m~(1/2) for compact-tension, 0. 65~2. 08MPa·m~(1/2) for three point bending and 1. 48~6. 17MPa·m~(1/2) for single-side crack stretching. It is observed that the value of K_c decreases gradually with the increase in temperature and crack-length. Finally, the three experimental methods have been compared. It is suggested that the singleside crack stretching is better for studying the fracture behavior of gun propellants.

本文用紧凑拉伸、三点弯曲和单边裂纹拉伸等三种实验方法对硝胺火药在不同温度和不同裂纹深度下的断裂性能进行了研究.在所做实验条件下,用紧凑拉伸实验测得的断裂韧性K_c值的范围是0.97~4.23MPa·m~(1/2);用三点弯曲实验测得的K_c值之范围是0.65~2.08MPa·m~(1/2);用单边裂纹拉伸实验测得的K_c值范围是1.48~6.1 7MPa·m~(1/2).并且得出,随温度和裂纹深度的增加,K_c值都逐渐减小.最后文章还对这三种实验方法进行了讨论,得出单边裂纹拉伸实验是研究炮药断裂性能的一种较好的实验方法.

This paper discusses systematically the necessity of seepage analysis and seepage control study for high RCC gravity dam,recommends the seepage characteristics of material for different zones of Longtan RCC dam and studies the seepage dissolving character and critical hydraulic gradient.It proves that optimal concrete mix can meet the requirements for both seepage control and durability of 192m/216.5m high dam.For seepage control structures,this paper focuses on the reinforced concrete facing,the anomalous concrete...

This paper discusses systematically the necessity of seepage analysis and seepage control study for high RCC gravity dam,recommends the seepage characteristics of material for different zones of Longtan RCC dam and studies the seepage dissolving character and critical hydraulic gradient.It proves that optimal concrete mix can meet the requirements for both seepage control and durability of 192m/216.5m high dam.For seepage control structures,this paper focuses on the reinforced concrete facing,the anomalous concrete with two grade concrete facing and the bituminous mix facing.Based on temperature control,crack control structural stress and stability analysis as well as dam seepage calculation,the anomalous concrete with two grade conerete facing is optimal and is recommended.Bituminous mix possesses good seepage control and,heat insulation property which is very good for temperature and crack control,therefore it is suggested as a comparable one.This paper,which suggests some topics for further research is doubtlessly important for the Longtan project now under construction

系统地阐述了高碾压混凝土重力坝渗流分析和防渗结构研究的必要性 ,介绍了龙滩高碾压混凝土重力坝各分区材料的渗流特性 ,并进行了渗透溶蚀性研究和临界水力梯度研究。证明优化的料配合比 ,能满足龙滩 192m/ 2 16 .5m高大坝的防渗与耐久性要求。对大坝的防渗结构 ,主要研究了钢筋混凝土面板防渗方案、变态混凝土与二级配碾压混凝土防渗方案和沥青混合料防渗方案。通过温控与防裂的分析计算、结构应力与稳定分析计算和大坝渗流分析计算等多方面综合比较 ,以变态混凝土与二级配碾压混凝土防渗方案最优 ,推荐为首选方案。而沥青混合料具有很好的防渗效果 ,并具有保温作用 ,且对温控防裂十分有利 ,建议作为比选方案。对今后需进一步研究的课题提出了建议 ,无疑对已开工建设的龙滩工程具有重要的参考价值

Through the trials of stability of high temperature and crack resisting with two types of geogrids over asphalt pavement, it shows that the using of geogrid over asphalt pavement can not only improve the stability of high and low temperature, but also delay and decrease the crack appearance, so that increases the life of pavement. The construction technology of this pavement is easy, too.

通过对 2种格栅加筋沥青混凝土路面的高温稳定性和抗裂性的试验研究 ,试验结果表明 ,格栅加筋沥青混凝土路面不但能够改善沥青混凝土路面的高温稳定性、低温抗裂性能 ,而且能够延缓和减少反射裂缝的产生 ,大大提高了路面的使用寿命 ,其施工工艺也较为简单。

 
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