Mesomechanics of nucleation and propagation of small fatigue cracks in metal matrix composites

金属基复合材料中细小疲劳裂纹的形核和扩展的细观力学

基本信息

  • 批准号:
    09450047
  • 负责人:
  • 金额:
    $ 6.98万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1997
  • 资助国家:
    日本
  • 起止时间:
    1997 至 1999
  • 项目状态:
    已结题

项目摘要

1. A new system for the fatigue tests of metal matrix composites in a scanning electron microscope was developed to conduct in-situ observation of initiation and propagation of small fatigue cracks.2. The stress intensity factor for a crack interacting with particles was determined by the finite element method, and used for the prediction of the crack propagation direction and the rate.3. The threshold condition of small fatigue crack propagation was given by the emission of a dislocation from the crack tip or the dislocation annihilation. The propagation behavior of a microstructurally small crack interacting with the grain boundaries was modeled on the basis of continuously distributed dislocation theory combined with the crack closure model. The propagation condition of mechanically small cracks was given by the resistance curve method.4. The published data on the fatigue limit, the threshold stress intensity factor and the effective threshold stress intensity factor of aluminum alloys reinforced and unreinforced by silicon carbide particles or whiskers were correlated to the tensile properties of materials. The reinforcement influenced the tensile strength and also the fatigue properties of materials.
1.研制了一套新的金属基复合材料疲劳试验扫描电镜系统,对疲劳小裂纹的萌生和扩展进行了原位观察.通过有限元方法确定了裂纹与颗粒相互作用时的应力强度因子,并将其用于裂纹扩展方向和速率的预测.疲劳小裂纹扩展的门槛条件由裂纹尖端的位错发射或位错湮灭给出。基于连续分布位错理论和裂纹闭合模型,模拟了微裂纹与晶界相互作用的扩展行为。通过阻力曲线法给出了机械小裂纹的扩展条件。已发表的关于碳化硅颗粒或晶须增强和未增强铝合金的疲劳极限、门槛应力强度因子和有效门槛应力强度因子的数据与材料的拉伸性能相关。钢筋影响材料的抗拉强度和疲劳性能。

项目成果

期刊论文数量(24)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Y. Akiniwa: "Propagation Behavior of Small Fatigue Cracks in SiCp/Al204 Composites"Proc. Int. Conf. Materials and Mechanics '97 ICM&M'97. 661-666 (1997)
Y. Akiniwa:“SiCp/Al204 复合材料中小疲劳裂纹的扩展行为”Proc。
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K.Tanaka: "Mechanics of Small Fatigue Crack Propagation"Small Fatigue Cracks,Elsevier Science Ltd.. 59-71 (1999)
K.Tanaka:“小疲劳裂纹传播的力学”小疲劳裂纹,Elsevier Science Ltd.. 59-71 (1999)
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    0
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Yoshiaki Akiniwa: "Propagation Behavior of Small Fatigue Cracks Interacting with Particles in MMC" The 3rd inter.Symp.Microstructure Mech.Prop.Engng Materials.67-67 (1997)
Yoshiaki Akiniwa:“MMC 中与颗粒相互作用的小疲劳裂纹的传播行为”第 3 届 inter.Symp.Microstruct Mech.Prop.Engng Materials.67-67 (1997)
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    0
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K.Tanaka: "Fatigue Thresholds of Discontinuously Reinforced Aluminum Alloys"Proc.7th Int.Fatigue Congress Fatigue '99. 3. 1449-1456 (1999)
K.Tanaka:“非连续强化铝合金的疲劳阈值”Proc.7th Int.Fatigue Conference Fatigue 99。
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    0
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田中啓介: "炭化ケイ素で強化したアルミニウム合金の疲労限度"日本材料学会,第10回破壊 力学シンポジウム講演論文集. 1-5 (1999)
Keisuke Tanaka:“碳化硅强化铝合金的疲劳极限”第10届断裂力学研讨会论文集,日本材料学会,1-5(1999)
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TANAKA Keisuke其他文献

Evaluation of Internal Strain Distribution in Glass-Short-Fiber Reinforced Plastics by Synchrotron Strain-Scanning Method
用同步加速器应变扫描法评估玻璃短纤维增强塑料的内部应变分布
Watermarkable Signature with Computational Function Preserving
具有计算功能保留的水印签名
Redactable Signature with Compactness from Set-Commitment
具有来自集合承诺的紧凑性的可编辑签名
Receiver Selective Opening Chosen Ciphertext Secure Identity-Based Encryption
接收者选择性打开选择的密文基于身份的安全加密

TANAKA Keisuke的其他文献

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{{ truncateString('TANAKA Keisuke', 18)}}的其他基金

The construction of large-scale microsatellite database and bioinformatics pipeline system
大规模微卫星数据库及生物信息管道系统建设
  • 批准号:
    19K16113
  • 财政年份:
    2019
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
Creation of high-fatigue-resistant thin-film structures by controlling nano-crystalline microstructure and fatigue-life prediction
通过控制纳米晶微观结构和疲劳寿命预测创建高抗疲劳薄膜结构
  • 批准号:
    24360049
  • 财政年份:
    2012
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Game Theoretic Studies on Cryptographic Protocols
密码协议的博弈论研究
  • 批准号:
    23500010
  • 财政年份:
    2011
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Evaluation of crack propagation behavior based on stress mapping within grains by synchrotron microbeam
基于同步加速器微束晶粒内应力映射的裂纹扩展行为评估
  • 批准号:
    22656034
  • 财政年份:
    2010
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Microscopic fracture mechanics approach to fatigue damage mechanisms of nanocrystalline metallic thin films
纳米晶金属薄膜疲劳损伤机制的微观断裂力学方法
  • 批准号:
    21360055
  • 财政年份:
    2009
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Microscopic Fracture Mechanics Study on Mechanisms of Small Fatigue Crack Propagation by Micro Beam X-ray Stress Evaluation
微观断裂力学研究微束X射线应力评估小疲劳裂纹扩展机制
  • 批准号:
    13305011
  • 财政年份:
    2001
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Study on development of fatigue life prediction system based on neutron strain scanning method
基于中子应变扫描法的疲劳寿命预测系统开发研究
  • 批准号:
    12555023
  • 财政年份:
    2000
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of nondestructive evaluation system of fatigue damage by neutron diffraction
中子衍射疲劳损伤无损评价系统的研制
  • 批准号:
    09555029
  • 财政年份:
    1997
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of High Precision System of Neutron Residual Stress Measurement
高精度中子残余应力测量系统的研制
  • 批准号:
    07555345
  • 财政年份:
    1995
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Meso-Mechanical Analysis of Fatigue Crack Propagation in CFRP under Mixed-Mode Loading
混合模式加载下 CFRP 疲劳裂纹扩展的细观力学分析
  • 批准号:
    07455052
  • 财政年份:
    1995
  • 资助金额:
    $ 6.98万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

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Acceleration and retardation behavior of creep-fatigue crack propagation in Ni-base superalloys: Mechanisms and quantitative modelling
镍基高温合金中蠕变疲劳裂纹扩展的加速和延迟行为:机制和定量建模
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3D疲劳裂纹扩展数值模拟在船舶结构疲劳寿命评估中的应用
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Zircloy-4 中微观结构敏感的短疲劳裂纹扩展的建模:微观结构、氢化物和辐照的影响
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    2462009
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Fatigue Crack Propagation
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无应力强度因子为参数的疲劳裂纹扩展规律的建立
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镍基高温合金中疲劳裂纹扩展的温度和时间相关机制
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    19K23503
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Collaborative Research: Simulating Crack Propagation in Steel Structures Under Ultra-Low Cycle Fatigue and Low-Triaxiality Loading from Earthquakes and Other Hazards
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    Standard Grant
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