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Creep-fatigue crack growth behavior in GH4169 superalloy
Dianyin HU, Xiyuan WANG, Jianxing MAO, Rongqiao WANG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 369-376 doi: 10.1007/s11465-018-0489-7
关键词: crack growth rate creep-fatigue GH4169 superalloy CT specimen dwell time
Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 255-262 doi: 10.1007/s11465-015-0342-1
The well-known fatigue crack growth (FCG) curves are two-parameter dependents. The range of the stress intensity factor ?K and the load ratio R are the parameters normally used for describing these curves. For engineering purposes, the mathematical representation of these curves should be integrated between the initial and final crack sizes in order to obtain the safety factors for stresses and life. First of all, it is necessary to reduce the dependence of the FCG curves to only one parameter. ?K is almost always selected and, in these conditions, considered as the crack driving force. Using experimental data from literature, the present paper shows how to perform multiple regression analyses using the traditional Walker approach and the more recent unified approach. The correlations so obtained are graphically analyzed in three dimensions. Numerical examples of crack growth analysis for cracks growing under nominal stresses of constant amplitude in smooth and notched geometries are performed, assuming an identical material component as that of the available experimental data. The resulting curves of crack size versus number of cycles (a vs. N) are then compared. The two models give approximately the same (a vs. N) curves in both geometries. Differences between the behaviors of the (avs. N) curves in smooth and notched geometries are highlighted, and the reasons for these particular behaviors are discussed.
关键词: fatigue crack propagation modeling life prediction mean stress effects
Concurrent fatigue crack growth simulation using extended finite element method
Zizi LU, Yongming LIU,
《结构与土木工程前沿(英文)》 2010年 第4卷 第3期 页码 339-347 doi: 10.1007/s11709-010-0078-2
关键词: small time scale model extended finite element method (X-FEM) crack growth multiaxial
Hierarchical approach for fatigue cracking performance evaluation in asphalt pavements
Ibrahim ONIFADE, Yared DINEGDAE, Björn BIRGISSON
《结构与土木工程前沿(英文)》 2017年 第11卷 第3期 页码 257-269 doi: 10.1007/s11709-017-0410-1
关键词: fatigue cracking energy based crack initiation mechanistic approach pavement analysis
Fatigue crack initiation of magnesium alloys under elastic stress amplitudes: A review
B. J. WANG, D. K. XU, S. D. WANG, E. H. HAN
《机械工程前沿(英文)》 2019年 第14卷 第1期 页码 113-127 doi: 10.1007/s11465-018-0482-1
关键词: Mg alloys fatigue behavior microstructure crack initiation deformation mechanism
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 905-913 doi: 10.1007/s11709-021-0683-2
关键词: fatigue life Delale and Erdogan method RMS–SIF approach stainless steel torsion and bending load fatigue crack growth
Elasto-plastic fatigue crack growth analysis of plane problems in the presence of flaws using XFEM
Sachin KUMAR,A. S. SHEDBALE,I. V. SINGH,B. K. MISHRA
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 420-440 doi: 10.1007/s11709-015-0305-y
关键词: XFEM von-Mises yield criterion isotropic hardening fatigue crack growth J-integral
Cracking evolution behaviors of lightweight materials based on
Y. Luo, S. C. Wu, Y. N. Hu, Y. N. Fu
《机械工程前沿(英文)》 2018年 第13卷 第4期 页码 461-481 doi: 10.1007/s11465-018-0481-2
Damage accumulation and failure behaviors are crucial concerns during the design and service of a critical component, leading researchers and engineers to thoroughly identifying the crack evolution. Third-generation synchrotron radiation X-ray computed microtomography can be used to detect the inner damage evolution of a large-density material or component. This paper provides a brief review of studying the crack initiation and propagation inside lightweight materials with advanced synchrotron three-dimensional (3D) X-ray imaging, such as aluminum materials. Various damage modes under both static and dynamic loading are elucidated for pure aluminum, aluminum alloy matrix, aluminum alloy metal matrix composite, and aluminum alloy welded joint. For aluminum alloy matrix, metallurgical defects (porosity, void, inclusion, precipitate, etc.) or artificial defects (notch, scratch, pit, etc.) strongly affect the crack initiation and propagation. For aluminum alloy metal matrix composites, the fracture occurs either from the particle debonding or voids at the particle/matrix interface, and the void evolution is closely related with fatigued cycles. For the hybrid laser welded aluminum alloy, fatigue cracks usually initiate from gas pores located at the surface or sub-surface and gradually propagate to a quarter ellipse or a typical semi-ellipse profile.
关键词: fatigue crack initiation and growth fatigue damage mechanism damage tolerance defect characterization laser welded aluminum alloys
Fatigue crack growth simulations of 3-D linear elastic cracks under thermal load by XFEM
Himanshu PATHAK,Akhilendra SINGH,I.V. SINGH,S. K. YADAV
《结构与土木工程前沿(英文)》 2015年 第9卷 第4期 页码 359-382 doi: 10.1007/s11709-015-0304-z
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 914-936 doi: 10.1007/s11709-021-0750-8
关键词: numerical modeling extended finite element method porous media crack growth stress intensity factor
Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 217-223 doi: 10.1007/s11709-012-0169-3
关键词: residual stress ductile crack growth resistance complete Gurson model eigenstrain method
Lei YANG, Yujing JIANG, Bo LI, Shucai LI, Yang GAO
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 121-131 doi: 10.1007/s11709-012-0151-0
关键词: expanded distinct element method (EDEM) crack growth rock-like material tensile-shear failure criterion Griffith failure criterion mechanical and failure behavior
Simulation of cohesive crack growth by a variable-node XFEM
Weihua FANG, Jiangfei WU, Tiantang YU, Thanh-Tung NGUYEN, Tinh Quoc BUI
《结构与土木工程前沿(英文)》 2020年 第14卷 第1期 页码 215-228 doi: 10.1007/s11709-019-0595-6
关键词: extended finite element method cohesive zone model sign function crack propagation
李学军,宾光富,王裕清
《中国工程科学》 2006年 第8卷 第4期 页码 50-53
大型重载支承轴隐蔽部位由于发生不可观测的突发性疲劳断裂,严重影响正常生产,给企业带来重大经济损失;分析这类支承轴的结构特点与振动信号特征之间的关系,运用时序分析方法对振动信号进行建模,并采用残差和归一化残差平方和NRSS作为识别疲劳裂纹状态的特征指标,有效诊断出了支承轴的疲劳裂纹程度。实验结果表明,采用和NRSS作为特征指标的时序分析方法对大型重载支承轴隐蔽部位的疲劳裂纹状态进行诊断,比常规的时频幅值特征分析法更为敏感有效、简便易行,且具备很强的实用性。
标题 作者 时间 类型 操作
Creep-fatigue crack growth behavior in GH4169 superalloy
Dianyin HU, Xiyuan WANG, Jianxing MAO, Rongqiao WANG
期刊论文
Some remarks on the engineering application of the fatigue crack growth approach under nonzero mean loads
Jorge Alberto Rodriguez DURAN,Ronney Mancebo BOLOY,Rafael Raider LEONI
期刊论文
Concurrent fatigue crack growth simulation using extended finite element method
Zizi LU, Yongming LIU,
期刊论文
Hierarchical approach for fatigue cracking performance evaluation in asphalt pavements
Ibrahim ONIFADE, Yared DINEGDAE, Björn BIRGISSON
期刊论文
Fatigue crack initiation of magnesium alloys under elastic stress amplitudes: A review
B. J. WANG, D. K. XU, S. D. WANG, E. H. HAN
期刊论文
Fatigue crack growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined
期刊论文
Elasto-plastic fatigue crack growth analysis of plane problems in the presence of flaws using XFEM
Sachin KUMAR,A. S. SHEDBALE,I. V. SINGH,B. K. MISHRA
期刊论文
Cracking evolution behaviors of lightweight materials based on
Y. Luo, S. C. Wu, Y. N. Hu, Y. N. Fu
期刊论文
Fatigue crack growth simulations of 3-D linear elastic cracks under thermal load by XFEM
Himanshu PATHAK,Akhilendra SINGH,I.V. SINGH,S. K. YADAV
期刊论文
An investigation on prevalent strategies for XFEM-based numerical modeling of crack growth in porous
期刊论文
Influence of welding residual stresses on the ductile crack growth resistance of circumferentially cracked
Xiaobo REN, Odd M. AKSELSEN, B?rd NYHUS, Zhiliang ZHANG
期刊论文
Application of the expanded distinct element method for the study of crack growth in rock-like materials
Lei YANG, Yujing JIANG, Bo LI, Shucai LI, Yang GAO
期刊论文
Simulation of cohesive crack growth by a variable-node XFEM
Weihua FANG, Jiangfei WU, Tiantang YU, Thanh-Tung NGUYEN, Tinh Quoc BUI
期刊论文