The Material Intellectualization in addition to the Detection of the Fatigue Crack by using piezoelectric polymer film gages

使用压电聚合物薄膜计检测疲劳裂纹的材料智能化

• 批准号: 11555037
• 负责人: KUROSAKI Shigeru
• 金额: $ 2.69万
• 依托单位: Tokyo National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 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: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555037/
• 关键词: piezoelectric sensor; Fatigue Crack Propagation; Intelligent Material; Strain Gage; Experimental Stress Analysis; Nondestructive Inspection; 応力集中; 圧電高分子薄膜

Piezoelectricity polymer thin film gage (PVDF) force output voltage large. therefore, the amplifier is not required in the measurement system. The research was carried out using such property with the purpose of the following.(1) The execution of fatigue crack propagation measurement experiment using the piezoelectricity polymer thin film gage. In the fatigue crack propagation measurement, it was shown experimentally that the result between piezoelectricity polymer film gage and crack gage agreed. It was proven that pot piezoelectricity polymer film gage could use for the fatigue crack propagation measurement.(2) The development of the calculation method of the fatigue crack length from output voltage of the piezoelectricity polymer thin film gage.The formula of the fatigue crack length was developed from the output voltage of the piezoelectricity polymer film gage.(3) Crack gage was developed which detected the generation of the fatigue crack which Arose from stress concentration zone such as the circular whole edge.It was produced by cutting the shape of the crack gage in the shape that suited the circular hole curvature the piezoelectricity polymer thin film.The good coincidence was observed by measured value and crack gage developed in this study of the fatigue crack length.(4) Using the piezoelectricity polymer thin film, the strain gauge was made and the strain measurement was tried. The strain analysis style was deduced from the fundamental equation of the piezoelectricity polymer thin film.As the result that it carried out the experiment and compared with actual strain gage the tendency equal to both was obtained.

压电聚合物薄膜传感器（PVDF）力输出电压大。因此，在测量系统中不需要放大器。本研究是利用这种性质进行的，目的如下。(1)利用压电聚合物薄膜计进行疲劳裂纹扩展测量实验。在疲劳裂纹扩展测量中，实验表明，压电聚合物薄膜计与裂纹计的测量结果基本一致。证明了压电薄膜应变计可用于疲劳裂纹扩展的测量。(2)提出了由压电聚合物薄膜计的输出电压计算疲劳裂纹长度的方法，推导了由压电聚合物薄膜计的输出电压计算疲劳裂纹长度的公式。(3)研制了一种用于检测应力集中区（如圆整边缘）疲劳裂纹产生的裂纹计，它是通过将裂纹计切割成与压电聚合物薄膜圆孔曲率相适应的形状而制成的。疲劳裂纹长度的测量值与研制的裂纹计的测量值吻合良好。(4)利用压电聚合物薄膜制作了应变片，并进行了应变测量试验。从压电聚合物薄膜的基本方程出发，推导了压电聚合物薄膜的应变分析方法，并进行了实验，与实际应变片进行了比较，得到了两者的趋势相当。

项目成果

黒崎茂,楠田昌之: "圧電性高分子薄膜フィルムによる定常繰返し負荷時の動ひずみ測定法"日本機械学会2000年度年次大会講演論文集. 3. 191-192 (2000)

Shigeru Kurosaki、Masayuki Kusuda：“使用压电聚合物薄膜进行稳定重复加载时的动态应变测量方法”日本机械工程师学会 2000 年年会论文集 3. 191-192 (2000)。

T.Kumazawa, S.Kurosaki, M.Kusuda: "The Crack Sensitivity teat of Piezoelectricity Polymer Film Gage"Preprint of The 31th Stress and Strain Measurement Symposium, Japan Society of NonDestructive Inspection.. 91-96 (2000)

T.Kumazawa、S.Kurosaki、M.Kusuda：“压电聚合物薄膜计的裂纹灵敏度”预印本，第 31 届应力应变测量研讨会，日本无损检测协会.. 91-96 (2000)

近藤陽星,黒崎茂,楠田昌之: "圧電高分子薄膜センサーを用いたひずみ測定法"日本非破壊検査協会・第32回応力・ひずみ測定と強度評価シシポジウム論文集. 32. 111-116 (2001)

Yosei Kondo、Shigeru Kurosaki、Masayuki Kusuda：“使用压电聚合物薄膜传感器的应变测量方法”日本无损检测协会第 32 届应力/应变测量和强度评估 Sisypodium 会议记录 32. 111-116 (2001)。

S.Kurosaki, Y.Kusuda: "The Strain Measurements in Dynamic Constant Cyclic Loading by Using Piezoelectricity Polymer Film Gage"Preprint 2000year Meeting of Japan Society of Mechanical Engineering.. Vol.III, No.001. 191-192 (2000)

S.Kurosaki，Y.Kusuda：“使用压电聚合物薄膜计进行动态恒定循环载荷的应变测量”日本机械工程学会 2000 年会议预印本。第 III 卷，第 001 期。

S.Hosoda, S.kurosaki, M.Kusuda: "The Monitering of Fatigue Crack Propagation by Using Plezoelectricity Polymer Film Gage (The 1st Report)"Preprint of Stress and Strain Measurement Meeting In Japan Society of NonDestructive Inspection.. No.4996. 1-6 (1998)

S.Hosoda、S.kurosaki、M.Kusuda：“使用压电聚合物薄膜计监测疲劳裂纹扩展（第 1 次报告）”日本无损检测学会应力应变测量会议预印本。第 4996 号。