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裂纹尖端张开位移(CTOD)是研究大范围屈服的低周疲劳破坏的重要参数之一,其值可反映结构材料抵抗低周疲劳裂纹形成和扩展的能力,是评估结构材料韧性的重要参量以及分析低周疲劳破坏引起裂纹扩展的主要控制参量。较大循环载荷下结构进入塑性变形不断累积及不断反复的破坏过程；其破坏形式分别为累积塑性破坏和低周疲劳破坏。 本文基于弹塑性断裂力学理论,依据Dugdale模型和卡氏定理,以裂纹尖端累积塑性应变为重要参...
Method for Predicting CTOD Fracture Toughness Transition Temperature from Charpy Impact Test Based on Fracture Mechanics Analysis
Predicting CTOD Fracture Toughness Transition Temperature Charpy Impact Test Fracture Mechanics Analysis
2009/4/7
This paper presents a method for predicting the CTOD fracture toughness transition temperature TiCTOD for structural steels from Charpy impact toughness TiCharpy. TiCTOD and TiCharpy are defined as th...
Evaluation Model for Assessing the Effect of Steel Properties on Correlation between Fracture Transition Temperatures in Charpy Impact Testing and CTOD Toughness Testing
CTOD fracture toughness
2009/3/30
There have been many correlations between Charpy test results and fracture toughness test results such as CTOD test results.