Laser-Raman Measurement and Analytical Evaluation of Matrix Creep Induced Stress Relaxation in Broken Fibers
断裂纤维中基体蠕变引起的应力松弛的激光拉曼测量和分析评估
基本信息
- 批准号:11650086
- 负责人:
- 金额:$ 2.37万
- 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:1999
- 资助国家:日本
- 起止时间:1999 至 2000
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Unidirectional metal-matrix and polymer-matrix composites reinforced forced with long brittle fibers may suffer from creep rupture under constant applied stress, since the stress in broken fibers is relaxed with time. In the present work, laser-Raman stress measurement and analytical evaluation were performed to investigate such stress relaxation, resulting in the following findings :1. Fiber pull-out tests were done using single-fiber model composites for the purpose of clarifying the effect of matrix creep on the stress profile of fiber stress. The stress of carbon fibers embedded in polymers was measured by means of Raman spectroscopy. Three kinds of polymer matrices, i.e., normal epoxy, flexible epoxy and UV-curable acrylic, were employed. It turned out that the profile of fiber stress changes with time more markedly if the matrix creeps more significantly.2. Moreover, the stress relaxation in broken fibers was measured using single-fiber model composites and Raman spectroscopy. It was found that the stress relaxation in broken fibers also occurs more markedly if the matrix creeps more significantly.3. A functional based on complementary energy was presented in an incremental form. It was shown that the functional has a stationary function satisfying a shear lag differential equation. Then, by employing the bilinear approximation of fiber stress profiles, analytical solutions for axisymmetric fiber breakage and fiber pull-out models were obtained from the stationary condition.4. The analytical solutions mentioned above were applied to the present experimental results. The creep constants were identified from creep tests of the polymers employed. It was thus shown that the analytical solutions represent well the tendencies observed in the experiments.
用脆性长纤维增强的单向金属基和聚合物基复合材料在恒定外加应力下可能发生蠕变断裂,因为断裂纤维中的应力随着时间的推移而松弛。在本工作中,激光拉曼应力测量和分析评估进行了研究这种应力松弛,导致以下结果:1。采用单纤维模型复合材料进行了纤维拔出试验,研究了基体蠕变对纤维应力分布的影响。用拉曼光谱法测量了碳纤维在聚合物中的应力。三种聚合物基体,即,采用普通环氧树脂、柔性环氧树脂和UV可固化丙烯酸树脂。结果表明,基体蠕变越显著,纤维应力分布随时间的变化越显著.此外,使用单纤维模型复合材料和拉曼光谱测量断裂纤维中的应力松弛。研究发现,基体蠕变越显著,断裂纤维处的应力松弛也越显著.以增量形式给出了一个基于余能的泛函。结果表明,该泛函具有满足剪滞微分方程的平稳函数。然后,采用双线性近似的纤维应力分布,在稳态条件下得到了轴对称纤维断裂和纤维拔出模型的解析解.将上述解析解应用于本实验结果。蠕变常数从所用聚合物的蠕变试验中确定。结果表明,解析解很好地代表了实验中观察到的趋势。
项目成果
期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Miyake S.Kokawa and N.Ohno: "Evaluation of Time-Dependent Change of Fiber Stress Profiles in Constant Load Single-Fiber Pull-Out Tests Using Raman Spectroscopy"Transactions of JSME, Ser.A. 66-643 (in Japanese). 464-471 (2000)
T.Miyake S.Kokawa 和 N.Ohno:“使用拉曼光谱法评估恒定负载单纤维拉拔测试中纤维应力分布随时间的变化”,JSME 交易,Ser.A。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
N.Ohno: "Effects of Matrix Creep on Fiber Stress Profiles in Unidirectional Composites : Mesoscopic Analysis Based on a Variational Method"Proceeding of IUTAM Symposium on Creep in Structures (Kluwer Academic Publishers). 439-452 (2001)
N.Ohno:“单向复合材料中基体蠕变对纤维应力分布的影响:基于变分方法的细观分析”IUTAM 结构蠕变研讨会论文集(Kluwer 学术出版社)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
三宅卓志: "定荷重繊維引抜き試験における繊維応力分布の時間変化のラマン分光による評価"日本機械学会論文集(A編). 66・643. 464-471 (2000)
Takashi Miyake:“通过拉曼光谱评估恒定负载纤维拉拔测试中纤维应力分布的时间变化”日本机械工程师学会会刊(A版)66・643(2000年)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
三宅卓志: "定荷重繊維引抜き試験における繊維応力分布の時間変化のラマン分光による評価"日本機械学会論文集(A編). 66・643(印刷中). (2000)
Takashi Miyake:“使用拉曼光谱法评估恒定负载纤维拉出测试中纤维应力分布的时间变化”,日本机械工程师学会会刊(A 版)(2000 年出版)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
大野信忠: "母材クリープを有する一方向繊維強化複合材の繊維応力分布解析に対する変分法"日本機械学会論文集,A編. 66-643. 472-479 (2000)
Nobutada Ohno:“具有基体蠕变的单向纤维增强复合材料的纤维应力分布分析的变分方法”,日本机械工程师学会汇刊,A 版 66-643(2000 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 }}
OHNO Nobutada其他文献
OHNO Nobutada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('OHNO Nobutada', 18)}}的其他基金
Homogenized inelastic constitutive equation of open-porous bodies: theoretical developments and applications
开孔体均匀非弹性本构方程:理论发展与应用
- 批准号:
24360045 - 财政年份:2012
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Analytical prediction and homogenization analysis of grain fining effects using a strain gradient plasticity theory
使用应变梯度塑性理论对晶粒细化效果进行分析预测和均匀化分析
- 批准号:
19360048 - 财政年份:2007
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Large-scale Multiscale Analysis for Microscopic Buckling and Macroscopic Instability of Periodic Cellular Solids Based on a Homogenization Theory
基于均质化理论的周期性多孔固体微观屈曲和宏观不稳定性的大规模多尺度分析
- 批准号:
15360051 - 财政年份:2003
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Microscopic Buckling Analysis of Cellular Solids Based on a Homogenization Theory of Finite Deformation
基于有限变形均匀化理论的多孔固体微观屈曲分析
- 批准号:
13650084 - 财政年份:2001
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Homogenization Analysis and Experimental Verification for Creep of Unidirectional Fiber Reinforced Composites
单向纤维增强复合材料蠕变均匀化分析及实验验证
- 批准号:
09450046 - 财政年份:1997
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
相似海外基金
CAREER: Enabling High-throughput Creep Testing of Advanced Materials through in-situ Micromechanics and Mesoscale Modeling
职业:通过原位微观力学和介观建模实现先进材料的高通量蠕变测试
- 批准号:
2340174 - 财政年份:2024
- 资助金额:
$ 2.37万 - 项目类别:
Standard Grant
SBIR Phase I: Advanced Manufacturing of Oxide Dispersion-Strengthened Superalloys for High Temperature Creep and Hydrogen Environment Applications
SBIR 第一阶段:用于高温蠕变和氢环境应用的氧化物弥散强化高温合金的先进制造
- 批准号:
2335531 - 财政年份:2024
- 资助金额:
$ 2.37万 - 项目类别:
Standard Grant
Microstructural Evolution during Superplastic Ice Creep
超塑性冰蠕变过程中的微观结构演化
- 批准号:
2317263 - 财政年份:2023
- 资助金额:
$ 2.37万 - 项目类别:
Continuing Grant
Investigation on the effects of fatigue and creep on the frecture mechanics properties of solid wood
疲劳和蠕变对实木断裂力学性能影响的研究
- 批准号:
23H02277 - 财政年份:2023
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
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
- 批准号:
23K03600 - 财政年份:2023
- 资助金额:
$ 2.37万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Synchrotron deformation experiments of olivine under the deep upper mantle conditions: Transient creep, plastic anisotropy, and the role of grain-boundary sliding.
上地幔深部条件下橄榄石的同步加速变形实验:瞬态蠕变、塑性各向异性和晶界滑动的作用。
- 批准号:
2322719 - 财政年份:2023
- 资助金额:
$ 2.37万 - 项目类别:
Continuing Grant
Quantum and Thermal Creep of Skyrmions and Superconducting Vortices
斯格明子和超导涡旋的量子和热蠕变
- 批准号:
2330562 - 财政年份:2023
- 资助金额:
$ 2.37万 - 项目类别:
Standard Grant
Creep-Based Nanomanufacturing of Crystalline Metals and Alloys
基于蠕变的晶体金属和合金纳米制造
- 批准号:
2212195 - 财政年份:2023
- 资助金额:
$ 2.37万 - 项目类别:
Standard Grant
A Convergence Study to Determine to the Role of Pressure Solution Creep Mechanisms in Driving Cold Sintering in Functional Ceramics
确定压溶蠕变机制在驱动功能陶瓷冷烧结中的作用的收敛性研究
- 批准号:
2202525 - 财政年份:2022
- 资助金额:
$ 2.37万 - 项目类别:
Continuing Grant
Catalyst Project: Microstructural Evolution and Constitutive Modeling of Creep and Elevated Temperature Quasi-Static Tensile Deformation in Additively Manufactured Grade 91 Alloy
催化剂项目:增材制造 91 级合金蠕变和高温准静态拉伸变形的微观结构演化和本构建模
- 批准号:
2200613 - 财政年份:2022
- 资助金额:
$ 2.37万 - 项目类别:
Standard Grant