A Method for Measurement of Crack Opening Displacement of Fast Propagating Crack in Araldite B
The method of crack opening displacement (COD) has been used to obtain the energy release rate of fast propagating cracks just before and just after crack bifurcation. In the method, COD is measured on the microscopic photographs of the cracks. But, in the case of cracks in Araldite B, the corner ma...
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| Veröffentlicht in: | Journal of the Japanese Society for Experimental Mechanics 2007, Vol.7(2), pp.136-141 |
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| container_title | Journal of the Japanese Society for Experimental Mechanics |
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| creator | SUZUKI, Shinichi IWANAGA, Kazuya |
| description | The method of crack opening displacement (COD) has been used to obtain the energy release rate of fast propagating cracks just before and just after crack bifurcation. In the method, COD is measured on the microscopic photographs of the cracks. But, in the case of cracks in Araldite B, the corner made by a crack surface and a specimen surface is chipped out from the specimen, then, it is often difficult to measure CODs from the photographs of the cracks. The present study shows a method to measure the COD in the region where COD is difficult to be measured directly on the photograph. The accuracy of the method of the present paper is good enough that the measured CODs can give the energy release rate of the crack at bifurcation with the accuracy of about 7%. |
| doi_str_mv | 10.11395/jjsem.7.136 |
| format | Article |
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In the method, COD is measured on the microscopic photographs of the cracks. But, in the case of cracks in Araldite B, the corner made by a crack surface and a specimen surface is chipped out from the specimen, then, it is often difficult to measure CODs from the photographs of the cracks. The present study shows a method to measure the COD in the region where COD is difficult to be measured directly on the photograph. 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In the method, COD is measured on the microscopic photographs of the cracks. But, in the case of cracks in Araldite B, the corner made by a crack surface and a specimen surface is chipped out from the specimen, then, it is often difficult to measure CODs from the photographs of the cracks. The present study shows a method to measure the COD in the region where COD is difficult to be measured directly on the photograph. The accuracy of the method of the present paper is good enough that the measured CODs can give the energy release rate of the crack at bifurcation with the accuracy of about 7%.</description><subject>Bifurcations</subject><subject>Brittle Fracture</subject><subject>Chipping</subject><subject>Corners</subject><subject>Crack Bifurcation</subject><subject>Crack Opening Displacement</subject><subject>Cracks</subject><subject>Energy Release Rate</subject><subject>Fracture Mechanics</subject><subject>High-speed Photography</subject><subject>Holography</subject><subject>Microscopy</subject><subject>Optical Measurement</subject><subject>Propagation</subject><issn>1346-4930</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqF0D1PwzAQBuAMIFGVbvwAjywp_kiceEKlUEAqKgOsWGfn3DqkSbDTgX9PaVFXhtOd9D664U2SK0anjAmV39R1xO20mDIhz5IRE5lMMyXoRTKJ0RsqWJExWtJR8jEjLzhsuoq4LuxPiLuAW2wH0jkyD2A_yarH1rdrcu9j34A9pQuIA3kNXQ9rGH7BkfuWzAI0lR-Q3F0m5w6aiJO_PU7eFw9v86d0uXp8ns-Wac04Zyk3ZY6gFAXkMq-clZBzx6CqKFLgJQeTm0zwwoCRhWEuw1IozMBZ56zJxTi5Pv7tQ_e1wzjorY8WmwZa7HZRs6KgIqNKsv8pZUoqWjK5p7dHWscB1qj74LcQvjWEwdsG9aFlXWh-mH3Xp8RuIGhsxQ9r43w0</recordid><startdate>2007</startdate><enddate>2007</enddate><creator>SUZUKI, Shinichi</creator><creator>IWANAGA, Kazuya</creator><general>The Japanese Society for Experimental Mechanics</general><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>2007</creationdate><title>A Method for Measurement of Crack Opening Displacement of Fast Propagating Crack in Araldite B</title><author>SUZUKI, Shinichi ; IWANAGA, Kazuya</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j1221-2b85ea990ae265dfc6a52f1add0e0a282ab5b4327bab67b1f4e839e4afcffcb53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2007</creationdate><topic>Bifurcations</topic><topic>Brittle Fracture</topic><topic>Chipping</topic><topic>Corners</topic><topic>Crack Bifurcation</topic><topic>Crack Opening Displacement</topic><topic>Cracks</topic><topic>Energy Release Rate</topic><topic>Fracture Mechanics</topic><topic>High-speed Photography</topic><topic>Holography</topic><topic>Microscopy</topic><topic>Optical Measurement</topic><topic>Propagation</topic><toplevel>online_resources</toplevel><creatorcontrib>SUZUKI, Shinichi</creatorcontrib><creatorcontrib>IWANAGA, Kazuya</creatorcontrib><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Journal of the Japanese Society for Experimental Mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SUZUKI, Shinichi</au><au>IWANAGA, Kazuya</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A Method for Measurement of Crack Opening Displacement of Fast Propagating Crack in Araldite B</atitle><jtitle>Journal of the Japanese Society for Experimental Mechanics</jtitle><addtitle>J.JSEM</addtitle><date>2007</date><risdate>2007</risdate><volume>7</volume><issue>2</issue><spage>136</spage><epage>141</epage><pages>136-141</pages><issn>1346-4930</issn><abstract>The method of crack opening displacement (COD) has been used to obtain the energy release rate of fast propagating cracks just before and just after crack bifurcation. In the method, COD is measured on the microscopic photographs of the cracks. But, in the case of cracks in Araldite B, the corner made by a crack surface and a specimen surface is chipped out from the specimen, then, it is often difficult to measure CODs from the photographs of the cracks. The present study shows a method to measure the COD in the region where COD is difficult to be measured directly on the photograph. The accuracy of the method of the present paper is good enough that the measured CODs can give the energy release rate of the crack at bifurcation with the accuracy of about 7%.</abstract><pub>The Japanese Society for Experimental Mechanics</pub><doi>10.11395/jjsem.7.136</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| language | eng ; jpn |
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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | Bifurcations Brittle Fracture Chipping Corners Crack Bifurcation Crack Opening Displacement Cracks Energy Release Rate Fracture Mechanics High-speed Photography Holography Microscopy Optical Measurement Propagation |
| title | A Method for Measurement of Crack Opening Displacement of Fast Propagating Crack in Araldite B |
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