Multi-approach study of crack-tip mechanics on aluminium 2024 alloy
•Study of crack-tip propagation with macro-scale and micro-scale analyses.•Experimental estimation of the crack-tip position and the crack orientation.•Macro-scale analysis includes estimation of the SIF (continuum mechanics) from DIC.•Micro-scale investigation includes fractography analysis with SE...
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Veröffentlicht in: | Theoretical and applied fracture mechanics 2018-12, Vol.98, p.38-47 |
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container_title | Theoretical and applied fracture mechanics |
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creator | Chernyatin, A.S. Lopez-Crespo, P. Moreno, B. Matvienko, Yu.G. |
description | •Study of crack-tip propagation with macro-scale and micro-scale analyses.•Experimental estimation of the crack-tip position and the crack orientation.•Macro-scale analysis includes estimation of the SIF (continuum mechanics) from DIC.•Micro-scale investigation includes fractography analysis with SEM.•Full-field displacement information is combined with Williams’ series development.
This work presents a comprehensive study for characterising the crack-tip mechanics and fatigue crack propagation in an Aluminium 2024-T351 alloy. It combines information obtained from three different sources: full-field displacement information from digital image correlation, analytical modelling of the crack-tip field and SEM fractographies. The displacement data measured around the crack-tip are fitted to a Williams’ series development in order to evaluate singular and non-singular terms of the crack-tip field. The procedures also allows rigid body motion to be corrected and the crack-tip coordinates and crack orientation to be estimated. Fatigue striations from the fracture surface were analysed with SEM in order to estimate the crack growth rate for different boundary conditions. Representation of all the results together with the Paris law data of the alloy allows the procedures to be cross-validated and to fit with a good agreement micro-scale measurements with continuum mechanics estimations. |
doi_str_mv | 10.1016/j.tafmec.2018.09.007 |
format | Article |
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This work presents a comprehensive study for characterising the crack-tip mechanics and fatigue crack propagation in an Aluminium 2024-T351 alloy. It combines information obtained from three different sources: full-field displacement information from digital image correlation, analytical modelling of the crack-tip field and SEM fractographies. The displacement data measured around the crack-tip are fitted to a Williams’ series development in order to evaluate singular and non-singular terms of the crack-tip field. The procedures also allows rigid body motion to be corrected and the crack-tip coordinates and crack orientation to be estimated. Fatigue striations from the fracture surface were analysed with SEM in order to estimate the crack growth rate for different boundary conditions. Representation of all the results together with the Paris law data of the alloy allows the procedures to be cross-validated and to fit with a good agreement micro-scale measurements with continuum mechanics estimations.</description><identifier>ISSN: 0167-8442</identifier><identifier>EISSN: 1872-7638</identifier><identifier>DOI: 10.1016/j.tafmec.2018.09.007</identifier><language>eng</language><publisher>Amsterdam: Elsevier Ltd</publisher><subject>Al 2024-T351 ; Aluminum ; Aluminum alloys ; Boundary conditions ; Continuum mechanics ; Correlation analysis ; Crack propagation ; Crack tips ; Cracks ; Digital image correlation ; Digital imaging ; Fatigue crack growth ; Fatigue failure ; Fracture mechanics ; Fracture surfaces ; Materials fatigue ; Rigid structures ; Rigid-body dynamics ; Scanning electron microscope ; Scanning electron microscopy ; Stress intensity factor ; Stress intensity factors ; Striations</subject><ispartof>Theoretical and applied fracture mechanics, 2018-12, Vol.98, p.38-47</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright Elsevier BV Dec 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-f83e085be73dd09bb20f4f5acb7176e6c1146ee9b85781e4a0cbb2258556729b3</citedby><cites>FETCH-LOGICAL-c334t-f83e085be73dd09bb20f4f5acb7176e6c1146ee9b85781e4a0cbb2258556729b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.tafmec.2018.09.007$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Chernyatin, A.S.</creatorcontrib><creatorcontrib>Lopez-Crespo, P.</creatorcontrib><creatorcontrib>Moreno, B.</creatorcontrib><creatorcontrib>Matvienko, Yu.G.</creatorcontrib><title>Multi-approach study of crack-tip mechanics on aluminium 2024 alloy</title><title>Theoretical and applied fracture mechanics</title><description>•Study of crack-tip propagation with macro-scale and micro-scale analyses.•Experimental estimation of the crack-tip position and the crack orientation.•Macro-scale analysis includes estimation of the SIF (continuum mechanics) from DIC.•Micro-scale investigation includes fractography analysis with SEM.•Full-field displacement information is combined with Williams’ series development.
This work presents a comprehensive study for characterising the crack-tip mechanics and fatigue crack propagation in an Aluminium 2024-T351 alloy. It combines information obtained from three different sources: full-field displacement information from digital image correlation, analytical modelling of the crack-tip field and SEM fractographies. The displacement data measured around the crack-tip are fitted to a Williams’ series development in order to evaluate singular and non-singular terms of the crack-tip field. The procedures also allows rigid body motion to be corrected and the crack-tip coordinates and crack orientation to be estimated. Fatigue striations from the fracture surface were analysed with SEM in order to estimate the crack growth rate for different boundary conditions. Representation of all the results together with the Paris law data of the alloy allows the procedures to be cross-validated and to fit with a good agreement micro-scale measurements with continuum mechanics estimations.</description><subject>Al 2024-T351</subject><subject>Aluminum</subject><subject>Aluminum alloys</subject><subject>Boundary conditions</subject><subject>Continuum mechanics</subject><subject>Correlation analysis</subject><subject>Crack propagation</subject><subject>Crack tips</subject><subject>Cracks</subject><subject>Digital image correlation</subject><subject>Digital imaging</subject><subject>Fatigue crack growth</subject><subject>Fatigue failure</subject><subject>Fracture mechanics</subject><subject>Fracture surfaces</subject><subject>Materials fatigue</subject><subject>Rigid structures</subject><subject>Rigid-body dynamics</subject><subject>Scanning electron microscope</subject><subject>Scanning electron microscopy</subject><subject>Stress intensity factor</subject><subject>Stress intensity factors</subject><subject>Striations</subject><issn>0167-8442</issn><issn>1872-7638</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouK7-Aw8Fz62TNGnSiyCLX7DiRc8hTadsar9MWmH_vZF69jQMPPPOzEPINYWMAi1u22w2TY82Y0BVBmUGIE_IhirJUlnk6pRsIiZTxTk7JxchtABU0jLfkN3r0s0uNdPkR2MPSZiX-piMTWK9sZ_p7KYkBh_M4GxIxiEx3dK7wS19woDx2Hbj8ZKcNaYLePVXt-Tj8eF995zu355edvf71OY5n9NG5QhKVCjzuoayqhg0vBHGVpLKAgtLKS8Qy0oJqShyAzYyTCghCsnKKt-SmzU33vq1YJh1Oy5-iCs1o0LyQkqhIsVXyvoxBI-NnrzrjT9qCvpXl271qkv_6tJQ6qgrjt2tYxg_-HbodbAOB4u182hnXY_u_4AfNzxz9g</recordid><startdate>201812</startdate><enddate>201812</enddate><creator>Chernyatin, A.S.</creator><creator>Lopez-Crespo, P.</creator><creator>Moreno, B.</creator><creator>Matvienko, Yu.G.</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><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>201812</creationdate><title>Multi-approach study of crack-tip mechanics on aluminium 2024 alloy</title><author>Chernyatin, A.S. ; Lopez-Crespo, P. ; Moreno, B. ; Matvienko, Yu.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-f83e085be73dd09bb20f4f5acb7176e6c1146ee9b85781e4a0cbb2258556729b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Al 2024-T351</topic><topic>Aluminum</topic><topic>Aluminum alloys</topic><topic>Boundary conditions</topic><topic>Continuum mechanics</topic><topic>Correlation analysis</topic><topic>Crack propagation</topic><topic>Crack tips</topic><topic>Cracks</topic><topic>Digital image correlation</topic><topic>Digital imaging</topic><topic>Fatigue crack growth</topic><topic>Fatigue failure</topic><topic>Fracture mechanics</topic><topic>Fracture surfaces</topic><topic>Materials fatigue</topic><topic>Rigid structures</topic><topic>Rigid-body dynamics</topic><topic>Scanning electron microscope</topic><topic>Scanning electron microscopy</topic><topic>Stress intensity factor</topic><topic>Stress intensity factors</topic><topic>Striations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chernyatin, A.S.</creatorcontrib><creatorcontrib>Lopez-Crespo, P.</creatorcontrib><creatorcontrib>Moreno, B.</creatorcontrib><creatorcontrib>Matvienko, Yu.G.</creatorcontrib><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>Theoretical and applied fracture mechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chernyatin, A.S.</au><au>Lopez-Crespo, P.</au><au>Moreno, B.</au><au>Matvienko, Yu.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multi-approach study of crack-tip mechanics on aluminium 2024 alloy</atitle><jtitle>Theoretical and applied fracture mechanics</jtitle><date>2018-12</date><risdate>2018</risdate><volume>98</volume><spage>38</spage><epage>47</epage><pages>38-47</pages><issn>0167-8442</issn><eissn>1872-7638</eissn><abstract>•Study of crack-tip propagation with macro-scale and micro-scale analyses.•Experimental estimation of the crack-tip position and the crack orientation.•Macro-scale analysis includes estimation of the SIF (continuum mechanics) from DIC.•Micro-scale investigation includes fractography analysis with SEM.•Full-field displacement information is combined with Williams’ series development.
This work presents a comprehensive study for characterising the crack-tip mechanics and fatigue crack propagation in an Aluminium 2024-T351 alloy. It combines information obtained from three different sources: full-field displacement information from digital image correlation, analytical modelling of the crack-tip field and SEM fractographies. The displacement data measured around the crack-tip are fitted to a Williams’ series development in order to evaluate singular and non-singular terms of the crack-tip field. The procedures also allows rigid body motion to be corrected and the crack-tip coordinates and crack orientation to be estimated. Fatigue striations from the fracture surface were analysed with SEM in order to estimate the crack growth rate for different boundary conditions. Representation of all the results together with the Paris law data of the alloy allows the procedures to be cross-validated and to fit with a good agreement micro-scale measurements with continuum mechanics estimations.</abstract><cop>Amsterdam</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.tafmec.2018.09.007</doi><tpages>10</tpages></addata></record> |
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subjects | Al 2024-T351 Aluminum Aluminum alloys Boundary conditions Continuum mechanics Correlation analysis Crack propagation Crack tips Cracks Digital image correlation Digital imaging Fatigue crack growth Fatigue failure Fracture mechanics Fracture surfaces Materials fatigue Rigid structures Rigid-body dynamics Scanning electron microscope Scanning electron microscopy Stress intensity factor Stress intensity factors Striations |
title | Multi-approach study of crack-tip mechanics on aluminium 2024 alloy |
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