Development of Impact Tensile Testing of Rock to Obtain Complete Stress-Strain Curves

开发岩石冲击拉伸试验以获得完整的应力-应变曲线

• 批准号: 07555327
• 负责人: OKUBO Seisuke
• 金额: $ 3.07万
• 依托单位: THE UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555327/
• 关键词: Rock; Uniaxial Tension; Complete Stress-Strain Curve; Loading Rate; Strength Failure Point; 完全応力-歪曲線; Rock; Stress-strain curve; Uniaxial Tension; Tensile Strength; Impact Strength

Uniaxial tension testing was performed in a servo-controlled testing machine which had been designed and manufactured in our laboratory. The testing machine was considerably modified for precise measuring of strain or displacement. We obtained remarkable results such as complete stress-strain curves in uniaxial tension which were hard to obtain and rarely published heretofore. The published our paper is attached to this report.We also tried to develop a testing machine which should be cheep in price, easy for a operator to handle and able to obtain data in mid-range loading speed region. After much effort and trials, a new testing machine designed and manufactured in our laboratory was completed. The total cost of the machine was about <planck's constant>0,000 excluding measuring instruments. The architecture of the developed testing machine and the testing method were stated in this report. We successfully obtained complete stress-strain curves of rocks in this testing machine. The obtained results indicate hopeful future of the testing machine and method developed in this study. We believe that the further effort must be taken to obtain better repeatable and reliable

单轴拉伸试验是在我们实验室设计和制造的伺服控制试验机上进行的。为了精确测量应变或位移，对试验机进行了相当大的修改。我们获得了显着的结果，例如单轴拉伸下的完整应力-应变曲线，这是迄今为止很难获得且很少发表的。我们还尝试开发一种价格低廉、易于操作员操作并能够在中等加载速度范围内获取数据的试验机。经过一番努力和试验，我们实验室设计制造的新型试验机完成了。不包括测量仪器，机器的总成本约为<普朗克常数>0,000。本报告阐述了所开发的测试机的架构和测试方法。我们在该试验机上成功获得了岩石完整的应力应变曲线。所获得的结果表明本研究中开发的测试机器和方法的前景充满希望。我们相信，必须采取进一步的努力以获得更好的可重复性和可靠性

项目成果

Okubo,S.: "Stress-Strain Curves for Various Rock Types in Uniaxsial Tension" Int.J.Rock Mech.Min.Sci.Geomech.Abstr.Vol.33.No.6. 549-556 (1996)

Okubo,S.：“单轴张力下各种岩石类型的应力-应变曲线”Int.J.Rock Mech.Min.Sci.Geomech.Abs​​tr.Vol.33.No.6。

前野沢郎: "岩石の衝撃引張試験方法の開発" 資源・素材学会 平成9年春季大会,研究・業績発表講演要旨集. (予定). (1997)

Maeno Tawaro：“岩石冲击拉伸试验方法的发展”，日本资源材料学会 1997 年春季会议，研究和成果展示摘要集（计划）。

Okubo, S.: "Complete Stress-Strain Curves for Various Rock Types in Uniaxial Tension" Int.J.Rock Mech.Min.Sci.& Geomech.Abstr.Vol.33, No.6. 549-556 (1996)

Okubo, S.：“单轴拉伸下各种岩石类型的完整应力-应变曲线”Int.J.Rock Mech.Min.Sci。

Maeno, T.: "Development of Impact Tensile Testing of Rock" J.MMIJ.(1997)

Maeno, T.：“岩石冲击拉伸试验的发展”J.MMIJ.(1997)

前野 沢郎: "岩石の衝撃引張試験方法の開発" 資源・素材学会 平成9年春季大会 研究・実績発表講演要旨集. (予定). (1997)

Takuro Maeno：“岩石冲击拉伸试验方法的发展”日本自然资源与材料学会 1997 年春季会议上的研究和结果介绍摘要（计划）。