RESEARCH ON APPLICATION OF LINEAR NOTCH MECHANICS TO STRENGTH OF NOTCHED ADVANCED MATERIALS

线性缺口力学在缺口先进材料强度中的应用研究

• 批准号: 04302026
• 负责人: NISITANI Hironobu
• 金额: $ 13.12万
• 依托单位: KYUSYU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04302026/
• 关键词: Linear Notch Mechanics; Notch; Fatigue; Fine Ceramics; Composites; Residual Stress; 応力集中; 先進材料; 応力場

This project was divided to the following four parts, and the following result was obtained in the each part.(I)Extension of Linear Notch Mechanics to Large Scale Yielding ProblemThe application limit of Linear Notch Mechanics was discussed quantitively, and It was extented to Non-linear Notch Mechanics which is available even in case of large scale yielding.(II)Application of Linear Notch Mechanics to New MetalsLinear Notch Mechanics was applied to the evalution for the notch strength of new metals for example Ti-alloy, HIP, ceramics coating and so on. As results, it found that Linear Notch Mechanics is valid, and the results were used for data-base in an expert systems.(III)Application of Linear Notch Mechanics to New MaterialsLiniear Notch Mechanics was applied to the evalution for the notch strength of new materials, for example fiber-reinforced-plastics, fine ceramics and so on. As results, it found that Linear Notch Mechanics is valid, and the results were used for data-base in an expert systems.(IV)Relation between Lenear Notch Mechanics and residual stressA method for evaluation of residual stress was developed, and the relation between Linear Notch Mechanics and residual stress was discussed.

该项目分为以下四个部分，并在每个部分中获得以下结果。（i）将线性缺口力学扩展到大规模产生问题的问题，该问题被定量地讨论了线性缺口力学的应用极限，并将其限制为非非范围。 - 即使在大规模屈服的情况下也可用的线性缺口力学。（ii）将线性缺口力学应用于新的金属槽机械师，以评估新金属的凹槽强度，例如Ti-Alloy，Hip，Hip，Ceramics Coating等等。结果，它发现线性缺口力学有效，并且结果用于专家系统中的数据基础。（iii）将线性缺口力学应用于新材料机械设备机制，用于评估新的新材料。材料，例如纤维增强塑料，精美的陶瓷等。结果，它发现线性缺陷力学有效，并且结果在专家系统中用于数据基础。（iv）Lenear Notch力学与剩余的压力方法之间的关系，以评估残余应力，与剩余的压力方法和剩余的压力方法。讨论了线性缺陷力学和残留应力。

项目成果

Hiizu Hyakutake: "Fatigue failure criterion for notched FRP Plates" JSME Inter.Journal Ser.A. Vol.36, No.2. 215-219 (1993)

Hiizu Hyakutake：“缺口 FRP 板的疲劳失效准则”JSME Inter.Journal Ser.A。

麻生,百武,山本: "FRP切欠平板の疲労損傷(繊維方法効果)" 第22回FRPシンポジウム(平成5年3月16日).

Aso、Hyakutake、Yamamoto：“FRP 缺口平板的疲劳损伤（纤维法效应）”第 22 届 FRP 研讨会（1993 年 3 月 16 日）。

Satoshi Tanaka: "Effect of heat treatment on initiation and propagation process of microcracks in Ti-alloy" Proc.Asian Pacific Conf.on Fracture and Strength'93. 287-292 (1993)

Satoshi Tanaka：“热处理对钛合金微裂纹萌生和扩展过程的影响”Proc.Asian Pacific Conf.on Fracture and Strength93。

Hironobu Nisitani: "Linear notch mechanics and its application to evaluation of fatigue strength of notched specimen" Proc.Strength of Ductile Cast Iron and Other Cast Metals. 11-17 (1993)

Hironobu Nisitani：“线性缺口力学及其在缺口试样疲劳强度评估中的应用”Proc.Strength of Ductile Cast Iron and Other Cast Metals。

真壁・西田・兼城・浦島: "ひすみ情報による疲労き裂発生の検知について" 材料. 42. 1224-1230 (1993)

Makabe、Nishida、Kaneshiro 和 Urashima：“使用裂纹信息检测疲劳裂纹萌生”材料。42. 1224-1230 (1993)