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The Geo-DSCM System and Its Application to the Deformation Measurement of Rock Materials | |
Ma SP; Xu XH(许向红); Zhao YH | |
Source Publication | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2004,41(3):411-412 |
2004-05-18 | |
Conference Name | Regional ISRM Sinorock 2004 Symposium, MAY 18-21, 2004 PEOPLES R CHINA |
Abstract | Digital Speckle Correlation Method (DSCM) is a useful tool for whole field deformation measurement, and has been applied to analyze the deformation field of rock materials in recent years. In this paper, a Geo-DSCM system is designed and used to analyse the more complicated problems of rock mechanics, such as damage evolution and failure procedure. A weighted correlation equation is proposed to improve the accuracy of displacement measurement on a heterogeneous deformation field. In addition, a data acquisition system is described that can synchronize with the test machine and can capture speckle image at various speeds during experiment. For verification of the Geo-DSCM system, the failure procedure of a borehole rock structure is inspected and the evolution of the deformation localization is analysed. It is shown that the deformation localization generally initializes at the vulnerable area of the rock structure but may develop in a very complicated way. |
WOS ID | WOS:000221685000048 |
Indexed By | CPCI-S |
Language | 英语 |
Citation statistics | |
Document Type | 会议论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/13864 |
Collection | 力学所知识产出(1956-2008) |
Corresponding Author | Ma SP |
Recommended Citation GB/T 7714 | Ma SP,Xu XH,Zhao YH. The Geo-DSCM System and Its Application to the Deformation Measurement of Rock Materials[C]INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2004,41(3):411-412,2004. |
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