Limiting the influence of friction on the split Hopkinson pressure bar tests by using a ring specimen
The deformation of a ring under axial compression is analyzed in order to estimate a favorable ring specimen geometry capable of limiting the influence of friction on the stress–strain curve obtained from SHPB tests. The analysis shows that the use of a ring specimen with a large inner diameter and...
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| Veröffentlicht in: | International journal of impact engineering 2012-11, Vol.49, p.130-141 |
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| container_title | International journal of impact engineering |
| container_volume | 49 |
| creator | Alves, M. Karagiozova, D. Micheli, G.B. Calle, M.A.G. |
| description | The deformation of a ring under axial compression is analyzed in order to estimate a favorable ring specimen geometry capable of limiting the influence of friction on the stress–strain curve obtained from SHPB tests. The analysis shows that the use of a ring specimen with a large inner diameter and a small radial thickness offers some advantages comparing with the traditional disk sample. In particular, it can improve the reliability of the test results for ductile materials in the presence of friction. Based on the deformation analysis of a ductile ring under compression, a correction coefficient is proposed to relate the actual material stress–strain curve with the reading from the SHPB. It is shown using finite element simulation that the proposed correction can be used for a wide range of conventional ductile materials. Experimental results with steel alloys indicate that the correction procedure is an effective technique for an accurate measurement of the dynamic material strength response.
► Friction correction for Hopkinson bar compression tests is presented. ► Analytical model is developed and explored. ► Model is verified by finite element analysis and experiments. ► Traditional Hopkinson bar analysis needs a correction factor in the stress. |
| doi_str_mv | 10.1016/j.ijimpeng.2012.04.005 |
| format | Article |
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► Friction correction for Hopkinson bar compression tests is presented. ► Analytical model is developed and explored. ► Model is verified by finite element analysis and experiments. ► Traditional Hopkinson bar analysis needs a correction factor in the stress.</description><subject>Constraining</subject><subject>Deformation</subject><subject>Disks</subject><subject>Ductile materials</subject><subject>Ductility</subject><subject>Exact sciences and technology</subject><subject>Fracture mechanics (crack, fatigue, damage...)</subject><subject>Friction</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Hopkinson pressure bar</subject><subject>Material characterization</subject><subject>Physics</subject><subject>Ring specimen</subject><subject>Solid mechanics</subject><subject>Specimen geometry</subject><subject>Static elasticity (thermoelasticity...)</subject><subject>Stress strain curves</subject><subject>Stress-strain relationships</subject><subject>Structural and continuum mechanics</subject><issn>0734-743X</issn><issn>1879-3509</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkMtq3TAQhkVoIadpXqFoU-jG7liSLXnXEpqmcCCbFrITsjxK59S3SnYhb1-Zk3YbGBiY-f-5fIy9q6CsoGo-nko60bjg9FgKqEQJqgSoL9ihMrotZA3tK3YALVWhlXy4ZG9SOgFUGmo4MDzSSCtNj3z9iZymMGw4eeRz4CGSX2meeI69mZaBVn43L79oSrm2RExpi8g7F_mKaU28e-Jb2oc5HveUFvQ04vSWvQ5uSHj9nK_Yj9sv32_uiuP91283n4-Fl7pei8oL0xsZQIu6a5u6C6ZTQjeha0D1tXIBTK_QhNZ1UhoJQoA0Qvad1G2LIK_Yh_PcJc6_t3ySHSl5HAY34bwlW4HJllbpNkubs9THOaWIwS6RRhefssjuXO3J_uNqd64WlM1cs_H98w6XvBtCdJOn9N8tGmFA1fstn846zA__IYw2edrZ9hTRr7af6aVVfwHT-JIT</recordid><startdate>20121101</startdate><enddate>20121101</enddate><creator>Alves, M.</creator><creator>Karagiozova, D.</creator><creator>Micheli, G.B.</creator><creator>Calle, M.A.G.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>20121101</creationdate><title>Limiting the influence of friction on the split Hopkinson pressure bar tests by using a ring specimen</title><author>Alves, M. ; Karagiozova, D. ; Micheli, G.B. ; Calle, M.A.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c375t-1c28d83f0725b965bf8b4276fb604d54af08d4e8f9ab338302203823db3799e03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Constraining</topic><topic>Deformation</topic><topic>Disks</topic><topic>Ductile materials</topic><topic>Ductility</topic><topic>Exact sciences and technology</topic><topic>Fracture mechanics (crack, fatigue, damage...)</topic><topic>Friction</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Hopkinson pressure bar</topic><topic>Material characterization</topic><topic>Physics</topic><topic>Ring specimen</topic><topic>Solid mechanics</topic><topic>Specimen geometry</topic><topic>Static elasticity (thermoelasticity...)</topic><topic>Stress strain curves</topic><topic>Stress-strain relationships</topic><topic>Structural and continuum mechanics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Alves, M.</creatorcontrib><creatorcontrib>Karagiozova, D.</creatorcontrib><creatorcontrib>Micheli, G.B.</creatorcontrib><creatorcontrib>Calle, M.A.G.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>International journal of impact engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alves, M.</au><au>Karagiozova, D.</au><au>Micheli, G.B.</au><au>Calle, M.A.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Limiting the influence of friction on the split Hopkinson pressure bar tests by using a ring specimen</atitle><jtitle>International journal of impact engineering</jtitle><date>2012-11-01</date><risdate>2012</risdate><volume>49</volume><spage>130</spage><epage>141</epage><pages>130-141</pages><issn>0734-743X</issn><eissn>1879-3509</eissn><coden>IJIED4</coden><abstract>The deformation of a ring under axial compression is analyzed in order to estimate a favorable ring specimen geometry capable of limiting the influence of friction on the stress–strain curve obtained from SHPB tests. The analysis shows that the use of a ring specimen with a large inner diameter and a small radial thickness offers some advantages comparing with the traditional disk sample. In particular, it can improve the reliability of the test results for ductile materials in the presence of friction. Based on the deformation analysis of a ductile ring under compression, a correction coefficient is proposed to relate the actual material stress–strain curve with the reading from the SHPB. It is shown using finite element simulation that the proposed correction can be used for a wide range of conventional ductile materials. Experimental results with steel alloys indicate that the correction procedure is an effective technique for an accurate measurement of the dynamic material strength response.
► Friction correction for Hopkinson bar compression tests is presented. ► Analytical model is developed and explored. ► Model is verified by finite element analysis and experiments. ► Traditional Hopkinson bar analysis needs a correction factor in the stress.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijimpeng.2012.04.005</doi><tpages>12</tpages></addata></record> |
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| identifier | ISSN: 0734-743X |
| ispartof | International journal of impact engineering, 2012-11, Vol.49, p.130-141 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Constraining Deformation Disks Ductile materials Ductility Exact sciences and technology Fracture mechanics (crack, fatigue, damage...) Friction Fundamental areas of phenomenology (including applications) Hopkinson pressure bar Material characterization Physics Ring specimen Solid mechanics Specimen geometry Static elasticity (thermoelasticity...) Stress strain curves Stress-strain relationships Structural and continuum mechanics |
| title | Limiting the influence of friction on the split Hopkinson pressure bar tests by using a ring specimen |
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