Experimental Studies on Energy Release Rate and Bifurcation Process of Fast Propagating Cracks
快速扩展裂纹能量释放速率及分叉过程的实验研究
基本信息
- 批准号:12650082
- 负责人:
- 金额:$ 2.43万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2000
- 资助国家:日本
- 起止时间:2000 至 2001
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Two kinds of experimental studies were carried out to figure our the bifurcation mechanism of fast propagating cracks.[1] Fast Propagating cracks at bifurcation were photographed with high-speed holographic microscopy. Crack speed was more than 650m/s. The photographing was done within 10μs before and after bifurcation, and the following results were obtained.(1) Crack opening displacements, CODs, are proportional to the distance r from the crack tip before bifurcation. After bifurcation CODs of mother cracks are proportional to r from the nominal tip of the mother cracks.(2) The energy release rate obtained from the CODs increases gradually and continuously across the bifurcation points of the cracks. Discontinuous change of the energy release rate doesn't occur at the bifurcation.(3) The energy flux toward the crack tips also increases gradually and continuously at the moment of crack bifurcation, and doesn't show discontinuous change. This is caused by the fact that the crack dosen't decelerate discontinuously after crack bifurcation.[2] Two optical systems were applied to take photographs of rapidly bifurcating cracks on the both surfaces of the plate specimens, and the following results were obtained.(1) There are some bifurcating cracks whose shape on one surface of a specimen is apparently different from that on the other surface. In these cases, the crack bifurcations are not two dimensional phenomena, but three dimensional ones.(2) In the above cases, some crack branches keep developing and break up the specimens.(3) Even in the case that cracks have similar shape on the both surface of specimens, two crack branches have different opening displacement. This means that bifurcation is not symmetric with respect to the line along the mother crack.[3] The continuous increase of energy release rate across the bifurcation point may be caused by the three dimensional nature of crack bifurcation.
本文通过两种实验研究来揭示快速扩展裂纹的分叉机理。[1]用高速全息显微镜拍摄了分叉处快速扩展裂纹的照片。裂纹速度大于650 m/s。在分叉前后10μs内进行拍照,得到以下结果。(1)裂纹张开位移(COD)与分叉前距裂纹尖端的距离r成正比。分叉后母裂纹的COD与距母裂纹名义尖端的r成正比。(2)从COD得到的能量释放率逐渐增加,并在整个裂纹的分叉点连续。在分叉处能量释放率没有发生不连续的变化。(3)在裂纹分叉时刻,向裂纹尖端的能流也是逐渐连续增加的,而不是不连续的变化。这是由于裂纹分叉后不再间断减速的结果。[2]采用两套光学系统对板试件的两个表面上的快速分叉裂纹进行了拍摄,得到了以下结果。(1)在试件的一面和另一面存在着形状明显不同的分叉裂纹。在这些情况下,裂纹分叉不是二维现象,而是三维现象。(2)在上述情况下,一些裂纹分支继续发展,并打破了试样。(3)即使在试件两表面裂纹形状相似的情况下,两个裂纹分支的张开位移也不同。这意味着分叉相对于沿沿着母裂纹的线是不对称的。[3]裂纹分叉的三维性可能是导致能量释放率在分叉点处不断增加的原因。
项目成果
期刊论文数量(26)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Shinichi Suzuki,Kenichi Sakaue,Yasuyuki Morita,Taichi Mori : "Method for Successive Photographing of Rapid Crack Bifurcation by Means of High-Speed Holographic Microscopy"Proceedings of the 24^<th> International Conference on High-Speed Photography and Ph
Shinichi Suzuki,Kenichi Sakaue,Yasuyuki Morita,Taichi Mori:“通过高速全息显微镜连续拍摄快速裂纹分岔的方法”第 24 届国际高速摄影与博士学位会议论文集
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Shinichi Suzuki, Kenichi Sakaue, Yasuyuki Morita and Taichi Mori: "Method for Successive Photographing of Rapid Crack Bifurcation by Means of High-Speed Holographic Microscopy"24^<th> International Congress on High-Speed Photography and Photonichs, SPIE.
Shinichi Suzuki、Kenichi Sakaue、Yasuyuki Morita 和 Taichi Mori:“通过高速全息显微镜连续拍摄快速裂纹分叉的方法”第 24 届国际高速摄影和光子学大会,SPIE。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Shinichi Suzuki, Yasuyuki Morita and Kenichi Sakaue: "Measurement of Opening Displacement of Bifurcated Cracks by High-Speed Holographic Microscopy and Moire Interferometry"Transactions of the Japan Society of Mechanical Engineers (A). Vol.67,No.655. 432-
Shinichi Suzuki、Yasuyuki Morita 和 Kenichi Sakaue:“通过高速全息显微镜和莫尔干涉测量法测量分叉裂纹的张开位移”日本机械工程师学会会刊(A)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
鈴木新一,森田康之,坂上賢一: "高速度ホログラフィ顕微鏡法とモアレ干渉法による分岐き裂の開口変位測定"日本機械学会論文集(A編). 67巻655号. (2001)
Shinichi Suzuki、Yasuyuki Morita、Kenichi Sakagami:“使用高速全息显微镜和莫尔干涉测量法测量分支裂纹的开口位移”,日本机械工程师学会会刊(编辑 A),第 655 期。 2001)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
坂上賢一,鈴木新一: "高速進展き裂が分岐する瞬間の平板試験片両面における同時撮影"日本機械学会材料力学部門講演会講演論文集. (2001)
Kenichi Sakagami、Shinichi Suzuki:“快速传播裂纹分叉时平板样品两侧的同步成像”日本机械工程师学会材料力学系论文集(2001 年)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
SUZUKI Shinichi其他文献
SUZUKI Shinichi的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('SUZUKI Shinichi', 18)}}的其他基金
Clinical analysis of the elastic desmoplasia abnormality in the aortic disease
主动脉疾病弹性纤维增生异常的临床分析
- 批准号:
25462165 - 财政年份:2013
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Experimental studies on distribution of energy release rate among branch cracks in rapid crack bifurcation
裂纹快速分叉时分支裂纹间能量释放率分布的实验研究
- 批准号:
24560097 - 财政年份:2012
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Retold Stories of Shakespeare's History Plays and History Education in the Late 19th and Early 20th Centuries
19世纪末20世纪初莎士比亚历史剧的重述与历史教育
- 批准号:
23720145 - 财政年份:2011
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Study of elastic fiber dysplasia on aortic aneurysm outbreak aiming at tailor-made medicine.
弹力纤维发育不良对主动脉瘤暴发的研究旨在量身定制药物。
- 批准号:
22591549 - 财政年份:2010
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Shakespeare's History Plays for Children in the Late 19^<th> and Early 20^<th> Centuries
19世纪末20世纪初的儿童莎士比亚历史剧
- 批准号:
20820042 - 财政年份:2008
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Young Scientists (Start-up)
Development of New Therapeutic Agent for Periodontal Regeneration
牙周再生新治疗剂的开发
- 批准号:
19791626 - 财政年份:2007
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
Experiment on Breaking CaCO3 Specimen by Underwater Focusing Shock Wave Induced by Pulsed laser Irradiation
脉冲激光辐照水下聚焦冲击波破碎碳酸钙试件实验
- 批准号:
19560090 - 财政年份:2007
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Experimental Studies on Laser Induced Underwater Converging Shock Waves Based Generated by Pseudo Phase Conjugate Method
伪相位共轭法产生激光诱导水下汇聚冲击波的实验研究
- 批准号:
17560146 - 财政年份:2005
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Experimental Studies on Bifurcation Process of Fast Propagating Cracks in Araldite B and Homallite 100
Araldite B和Homallite 100中快速扩展裂纹分叉过程的实验研究
- 批准号:
14550076 - 财政年份:2002
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Handlebody splittings of 3-manifolds with bounday
带边界的 3 歧管手柄体分裂
- 批准号:
10640094 - 财政年份:1998
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
相似海外基金
Manufacturing, testing and modelling of hybrid aluminium foam - CFRP sandwiches with improved impact strength
具有更高冲击强度的混合泡沫铝 - CFRP 三明治的制造、测试和建模
- 批准号:
261936349 - 财政年份:2014
- 资助金额:
$ 2.43万 - 项目类别:
Research Grants
Improvement of impact strength of joints bonded with multi-layered property-graded pressure sensitive adhesive
多层性能分级压敏胶粘合接头冲击强度的提高
- 批准号:
26630006 - 财政年份:2014
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Evaluation of impact strength and reliability of ceramic bearing ball for next-generation airplanes
下一代飞机陶瓷轴承球的冲击强度和可靠性评估
- 批准号:
21560096 - 财政年份:2009
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Evaluation of a test method for analyzing the impact strength of components and materials for separating safeguards with the finite element method (FEM)
使用有限元法 (FEM) 评估用于分离防护装置的部件和材料的冲击强度分析测试方法
- 批准号:
5227802 - 财政年份:2000
- 资助金额:
$ 2.43万 - 项目类别:
Research Grants
Development of Aluminum-based Alloys with High Elevated-temperature Strength and Impact Strength by Dispersion of Nanoscale Quasicrystalline Particles
通过纳米准晶颗粒的分散开发具有高高温强度和冲击强度的铝合金
- 批准号:
12650689 - 财政年份:2000
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study on Impact Strength Evaluation of Micro-Solder Joints in Mobile Electronic Units
移动电子装置微焊点冲击强度评价研究
- 批准号:
11555029 - 财政年份:1999
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Study of Large Deformation Behavior and Impact Strength for Stiffened Plate
加筋板大变形行为及冲击强度研究
- 批准号:
04452213 - 财政年份:1992
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Study on test method of impact strength for dental brittle materials.
牙科脆性材料冲击强度测试方法研究
- 批准号:
04671194 - 财政年份:1992
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Impact Strength of Inhomogeneous Materials
非均质材料的冲击强度
- 批准号:
01550053 - 财政年份:1989
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
On the Impact Strength Characteristics of Fine-Ceramics involving the Surface Damage by Repeated Impact Load.
涉及反复冲击载荷表面损伤的精细陶瓷的冲击强度特性。
- 批准号:
62550061 - 财政年份:1987
- 资助金额:
$ 2.43万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)