The study work is focused on the effect of temperature upon mechanical properties, creep, initiation and propagation of fatigue crack for the valve material.
着重温度对气门材料的力学性能、蠕变和疲劳裂纹形成与扩张的影响等问题进行分析和研究。
Effect of machining method or technique on material mechanical properties, such as its Effect on stress state, fatigue resistance, etc.
制造方法及技术对材料机械性能的影响，如对应力状态，抗疲劳性能等的影响。
The oxygen content of the materials used in our country is higher than that of the materials imported. Oxgen will greatly affect the fatigue properties as it forms oxide inclusions in material.
国内材料与国外先进材料的主要差别在于氧含量过高，氧在材料中形成氧化物夹杂，严重危害材料的疲劳性能。
This paper describes the material characteristic of CFRP cables. Mechanical properties such as corruption resistance, fatigue resistance, light weight, high strength are investigated.
本文介绍了碳纤维复合材料(CFRP)斜拉索具有耐腐蚀、耐疲劳、轻质高强等优点以及碳纤维斜拉索的构成和性能。
Use of copper material with high mechanical properties and thermal fatigue resistance.
采用紫铜材质，具有较高的机械性能和抗热抗疲劳性能。
The ductile iron is often used in high and low cyclic temperatures condition, its thermal fatigue property is regarded as one of the importantest material properties.
球铁经常使用在高温、低温循环的环境中，它的热疲劳性能被认为是最重要的性能之一。
Material characteristics, geometrical properties of structural components and loads are variables. As a result, the fatigue strength is analyzed by means of random variables.
由于构件的材料参数、几何参数及所受的载荷等均为随机变量，所以构件振动时的疲劳强度应通过随机参数来进行分析。
Material characteristics, geometrical properties of structural components and loads are variables. As a result, the fatigue strength is analyzed by means of random variables.
由于构件的材料参数、几何参数及所受的载荷等均为随机变量，所以构件振动时的疲劳强度应通过随机参数来进行分析。
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