Fatigue damage estimation of the tendons was made using fracture mechanics approach, establishing the fracture crack growth rate model and limit state equations for failure modes.
疲劳寿命的计算采用断裂力学方法，建立疲劳裂纹扩展模型和失效模式的极限状态方程。
An anisotropic damage model for concrete subjected to compressive fatigue load is developed based on continuum damage mechanics and the concept of boundary surface.
基于边界面概念和损伤力学理论，建立了混凝土受压各向异性损伤模型。
According to principle of damage mechanics, the evolutional law of damage in pearlite ductile cast iron has been studied under fatigue and tension loading.
利用损伤力学原理，研究了珠光体球墨铸铁在疲劳和拉伸载荷作用下的损伤演变规律。
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。
According to the principle of damage mechanics, the evolutional law of fatigue damage of pearlite ductile cast iron was studied with double arms electrical bridge for measuring electrical resistivity.
根据损伤力学原理，用双臂电桥测量电阻的方法，研究了珠光体球墨铸铁的疲劳损伤演变规律。
Based on Continuum damage Mechanics, a general two stage model for accumulation of fatigue damage in composite materials is presented.
基于连续介质损伤力学的概念，建立了疲劳损伤演化两阶段模型。
Then, the present Damage Mechanics theory is briefly introduced , and the advantages of using damage mechanics in rotor fatigue strength analysis is also discussed.
最后，就汽轮机转子疲劳强度的损伤力学研究进行了展望。
This paper presents a method to analyze the fatigue damage growth and to estimate the damage of the hammer-foundation system due to repeated impact based on the concept of damage mechanics.
用损伤力学的概念提出了一种研究由锻锤锻打引起锻锤基础系统的疲劳损伤增长和疲劳寿命估计的方法。
In addition, the crack propagation and fatigue damage of CSP under wind load in the case of the material which have initial crack have been analyzed using fracture mechanics method.
此外，还运用断裂力学方法分析了材料有初始裂纹的管道在风荷载作用下的裂纹扩展及疲劳损伤。
In this paper, the high cycle fatigue problems are studied by means of the method of damage mechanics.
本文用损伤力学研究金属高周疲劳问题。
Based on the continuum damage mechanics, the fatigue damage behavior of a P355NL1 steel specimen with notch under cyclic load was discussed.
采用损伤力学理论，研究了P 355nl1钢含沟槽轴对称试件在交变载荷作用下的疲劳损伤破坏过程。
Finally, the methods for calculating fatigue life based on fracture mechanics for welded node and cumulative damage theory for bolted sphere node respectively have been presented.
本文在大量实验的基础上提出了对焊接节点采用断裂力学的方法和对螺栓球节点应用累积损伤理论估算它们疲劳寿命的计算方法。
Fatigue crack initiation is an important period in the whole fatigue life. The damage regularity of crack initial period cannot estimate with fracture mechanics which is used in large crack.
疲劳裂纹萌生阶段在整个疲劳破坏过程中占有极为重要的地位，而萌生阶段的裂纹体损伤规律用长裂纹断裂力学方法是无法确定的。
In this paper, a new method based on the theory of damage mechanics is suggested to estimate the fatigue life of offshore petroleum steel structures.
在损伤力学的基础上本文提出了深水海洋石油钢结构估算疲劳寿命的新方法。文中给出了石油大学新建立的疲劳损伤数学模型。
For predicting vibration fatigue life of engineering structures under resonant loading, damage mechanics-finite element method was constructed.
建立了预估谐振载荷作用下结构振动疲劳寿命的损伤力学-有限元方法。
Based on the macroscale and microscale mechanics method, a research on fatigue damage evolution of welded joint is conducted.
用宏观与微观相结合的方法研究焊接接头疲劳损伤演变规律。
Based on the macroscale and microscale mechanics method, a research on fatigue damage evolution of welded joint is conducted.
用宏观与微观相结合的方法研究焊接接头疲劳损伤演变规律。
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