So, it is the new method of researching welded structure fatigue damage process.
因此，它是一种研究焊接结构疲劳损伤过程的新途径。
Optimization design method of welded structure was put forward with welded joint fatigue damage as constraints.
提出考虑焊接接头疲劳损伤约束的焊接结构抗疲劳优化设计方法。
The fatigue damage cumulative rule plays a key role on the structure design against fatigue.
疲劳累积损伤分布规律是结构疲劳可靠性分析与设计的关键内容之一。
It is considered that special structure of the dislocation and damage accumulation induced by rolled were main factors to make the fatigue strength of the welded joint reduced after rolled prestrain.
分析认为，辊压后材料中位错的特殊结构和材料内部所形成的损伤累积是疲劳性能下降的主要原因。
The fatigue breakage is one important of damage style in mechanic fractures. Forecasting structure fatigue life is very important.
疲劳破坏是机械结构的主要破坏形式之一，准确预测机械结构工作疲劳寿命至关重要。
Fatigue failure is a common kind of mechanical parts and structure damage.
疲劳破坏是机械零件和结构的常见的失效形式。
In this dissertation, the theory which is known of concrete structure fatigue cumulative damage and damage detection is narrated.
本文阐述了已有的混凝土结构疲劳累积损伤理论和疲劳损伤识别原理。
This paper introduced the recent researching progress in the world, and introduced the important significance of fatigue life prediction in structure life design and damage limitation design.
简述了当前国内外在这方面的研究进展，以及疲劳寿命预测在结构寿命设计及损伤容限设计上的重要意义。
In order to ensure structural safety in the design working life, it is necessary to carry out integrity analysis of fatigue and to evaluate the degree of fatigue damage on the structure.
为了保证结构在设计寿命期内的安全使用，有必要对结构进行整体疲劳分析，评估其在设计年限内的疲劳损伤程度。
The cumulative damage of the steel structure occurred by overload, fatigue and other reasons in service may deteriorate the safety of the structure seriously.
钢结构在服役过程中，因超载、疲劳等原因会引起损伤累积，极大地影响了结构的安全使用。
Grape Seed OPC's antioxidant can protect the structure and tissues from free radical damage, thus alleviate fatigue, delay aging.
葡萄籽opc的抗氧化作用能够保护结构组织不被自由基破坏，从而起到缓解疲劳、延缓衰老的作用。
The linear fatigue of the jacket structure was evaluated by using wave spectrum analysis theory and theory of linear cumulative damage.
采用随机波浪谱和线性疲劳累积损伤理论对导管架式海洋平台在波浪荷载作用下的疲劳可靠性进行研究。
The fatigue is the main damage appearance in road surface structure. The character of re-fatigue of road surface material directly relate to it's service life.
疲劳破坏是路面结构损伤的主要现象，路面材料的抗疲劳性能直接关系到路面的使用寿命。
Damage mechanics method is applied to investigate fatigue problems of metallic structure members.
引用损伤力学方法研究金属构件疲劳问题。
The initial damage and the cumulative damage during operation are quantitatively measured with the main fatigue crack length in the structure.
首先将结构的初始损伤、使用过程中的损伤累积用主裂纹长度的分布加以定量描述。
Fatigue damage cumulative rule after calendar corrosive environment is crucial for determining calendar life of aircraft structure.
这些曲线是确定受腐蚀金属机件或构件疲劳日历寿命的依据。
Fatigue damage cumulative rule after calendar corrosive environment is crucial for determining calendar life of aircraft structure.
这些曲线是确定受腐蚀金属机件或构件疲劳日历寿命的依据。
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