Magnetoelastic interactions in a cracked ferromagnetic body
The stress–strain state associated with a moving crack in a ferromagnetic material is investigated. The model considers a soft magnetic ferroelastic body and incorporates a realistic (nonlinear) susceptibility. The moving crack propagates in a direction perpendicular to the magnetic field. A closed-...
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| Veröffentlicht in: | Acta materialia 2008-10, Vol.56 (17), p.4673-4681 |
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| container_end_page | 4681 |
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| container_issue | 17 |
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| container_title | Acta materialia |
| container_volume | 56 |
| creator | Harutyunyan, S. Reynolds, W.T. Hasanyan, D.J. |
| description | The stress–strain state associated with a moving crack in a ferromagnetic material is investigated. The model considers a soft magnetic ferroelastic body and incorporates a realistic (nonlinear) susceptibility. The moving crack propagates in a direction perpendicular to the magnetic field. A closed-form solution yields the magnetoelastic stresses and a stress intensity factor. An applied magnetic field makes the stress intensity factor depend upon the crack velocity. The nonlinear susceptibility produces a completely different magnetoelastic stress state than a constant susceptibility, and the stress intensity is highly sensitive to material properties. The stresses around the crack are largely insensitive to the external magnetic field and crack speed except at critical combinations for which the stresses are singular. Some combinations of magnetic field and crack velocity cause the stress components ahead of the crack tip to change sign. |
| doi_str_mv | 10.1016/j.actamat.2008.05.022 |
| format | Article |
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The model considers a soft magnetic ferroelastic body and incorporates a realistic (nonlinear) susceptibility. The moving crack propagates in a direction perpendicular to the magnetic field. A closed-form solution yields the magnetoelastic stresses and a stress intensity factor. An applied magnetic field makes the stress intensity factor depend upon the crack velocity. The nonlinear susceptibility produces a completely different magnetoelastic stress state than a constant susceptibility, and the stress intensity is highly sensitive to material properties. The stresses around the crack are largely insensitive to the external magnetic field and crack speed except at critical combinations for which the stresses are singular. Some combinations of magnetic field and crack velocity cause the stress components ahead of the crack tip to change sign.</description><identifier>ISSN: 1359-6454</identifier><identifier>EISSN: 1873-2453</identifier><identifier>DOI: 10.1016/j.actamat.2008.05.022</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Cracks ; Exact sciences and technology ; Ferromagnetic ; Magnetic fields ; Magnetic permeability ; Magnetoelasticity ; Metals. 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The model considers a soft magnetic ferroelastic body and incorporates a realistic (nonlinear) susceptibility. The moving crack propagates in a direction perpendicular to the magnetic field. A closed-form solution yields the magnetoelastic stresses and a stress intensity factor. An applied magnetic field makes the stress intensity factor depend upon the crack velocity. The nonlinear susceptibility produces a completely different magnetoelastic stress state than a constant susceptibility, and the stress intensity is highly sensitive to material properties. The stresses around the crack are largely insensitive to the external magnetic field and crack speed except at critical combinations for which the stresses are singular. Some combinations of magnetic field and crack velocity cause the stress components ahead of the crack tip to change sign.</description><subject>Applied sciences</subject><subject>Cracks</subject><subject>Exact sciences and technology</subject><subject>Ferromagnetic</subject><subject>Magnetic fields</subject><subject>Magnetic permeability</subject><subject>Magnetoelasticity</subject><subject>Metals. Metallurgy</subject><subject>Moving crack</subject><subject>Nonlinear magnetization</subject><subject>Nonlinearity</subject><subject>Stress intensity</subject><subject>Stress intensity factor</subject><subject>Stress-strain relationships</subject><subject>Stresses</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoso-PkThF4UL61JmqQpHkQWv0DxoucwnUwla7ddk67gvze6i0c9zbzwzLzwZNkxZyVnXJ_PS8AJFjCVgjFTMlUyIbayPW7qqhBSVdtpr1RTaKnkbrYf45wxLmrJ9rKLR3gdaBqphzh5zP0wUUjv_DjEFHLIMcU3cnlHIYyLHzpx7eg-D7OdDvpIR5t5kL3cXD_P7oqHp9v72dVDgVKxqdAouAANiJ0RrGlqRrxmYJTTYIxskGtV6QZbMDVIcA5bQ5JzI11L2rXVQXa6_rsM4_uK4mQXPiL1PQw0rqKtpDGNESqBZ3-CnBnBG1NzkVC1RjGMMQbq7DL4BYTPBNlvq3ZuN1btt1XLlE1W093JpgIiQt8FGNDH32PBam0aaRJ3ueYoifnwFGxETwOS84Fwsm70_zR9Ae-Yj88</recordid><startdate>20081001</startdate><enddate>20081001</enddate><creator>Harutyunyan, S.</creator><creator>Reynolds, W.T.</creator><creator>Hasanyan, D.J.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20081001</creationdate><title>Magnetoelastic interactions in a cracked ferromagnetic body</title><author>Harutyunyan, S. ; Reynolds, W.T. ; Hasanyan, D.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c450t-6c212a6accf8209970e170a85d6a8849c165369cba87a4addcb8e41184dbe6db3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Applied sciences</topic><topic>Cracks</topic><topic>Exact sciences and technology</topic><topic>Ferromagnetic</topic><topic>Magnetic fields</topic><topic>Magnetic permeability</topic><topic>Magnetoelasticity</topic><topic>Metals. Metallurgy</topic><topic>Moving crack</topic><topic>Nonlinear magnetization</topic><topic>Nonlinearity</topic><topic>Stress intensity</topic><topic>Stress intensity factor</topic><topic>Stress-strain relationships</topic><topic>Stresses</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Harutyunyan, S.</creatorcontrib><creatorcontrib>Reynolds, W.T.</creatorcontrib><creatorcontrib>Hasanyan, D.J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Harutyunyan, S.</au><au>Reynolds, W.T.</au><au>Hasanyan, D.J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetoelastic interactions in a cracked ferromagnetic body</atitle><jtitle>Acta materialia</jtitle><date>2008-10-01</date><risdate>2008</risdate><volume>56</volume><issue>17</issue><spage>4673</spage><epage>4681</epage><pages>4673-4681</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>The stress–strain state associated with a moving crack in a ferromagnetic material is investigated. The model considers a soft magnetic ferroelastic body and incorporates a realistic (nonlinear) susceptibility. The moving crack propagates in a direction perpendicular to the magnetic field. A closed-form solution yields the magnetoelastic stresses and a stress intensity factor. An applied magnetic field makes the stress intensity factor depend upon the crack velocity. The nonlinear susceptibility produces a completely different magnetoelastic stress state than a constant susceptibility, and the stress intensity is highly sensitive to material properties. The stresses around the crack are largely insensitive to the external magnetic field and crack speed except at critical combinations for which the stresses are singular. Some combinations of magnetic field and crack velocity cause the stress components ahead of the crack tip to change sign.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2008.05.022</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Acta materialia, 2008-10, Vol.56 (17), p.4673-4681 |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Cracks Exact sciences and technology Ferromagnetic Magnetic fields Magnetic permeability Magnetoelasticity Metals. Metallurgy Moving crack Nonlinear magnetization Nonlinearity Stress intensity Stress intensity factor Stress-strain relationships Stresses |
| title | Magnetoelastic interactions in a cracked ferromagnetic body |
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