Evaluation of small‐scale yielding boundary using digital image correlation results
dc.contributor.author | Vasco‐Olmo, JM | |
dc.contributor.author | Díaz, FA | |
dc.contributor.author | Neto, DM | |
dc.contributor.author | Sérgio, ER | |
dc.contributor.author | Antunes, FV | |
dc.contributor.author | James, Neil | |
dc.date.accessioned | 2022-05-04T13:05:15Z | |
dc.date.available | 2022-05-04T13:05:15Z | |
dc.date.issued | 2022-04 | |
dc.identifier.issn | 1460-2695 | |
dc.identifier.issn | 1460-2695 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/19179 | |
dc.description.abstract |
<jats:title>Abstract</jats:title><jats:p>In this work, the boundaries of small‐scale yielding (SSY) and large‐scale yielding (LSY) have been experimentally evaluated from the analysis of crack tip opening displacement (CTOD) measured by digital image correlation (DIC). According to a previous numerical work, the ratio between the elastic CTOD range and the total CTOD range (Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>/Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>t</jats:italic></jats:sub>) defines the boundaries of SSY conditions and LSY. Three materials have been studied, commercially pure titanium and 2024‐T3 and 7050‐T6 aluminum alloys, tested at different stress ratio values. SSY conditions are shown to dominate when Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>/Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>t</jats:italic></jats:sub> ≥ 79% and ≥78% for titanium and the two aluminum alloys, respectively. In addition, LSY can be established when Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>/Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>t</jats:italic></jats:sub> ≤ 66.3% and ≤67.2% for titanium and for 2024‐T3 and 7050‐T6 aluminum alloys, respectively. Transition or LSY conditions are more probable in fatigue tests conducted at low <jats:italic>R</jats:italic> ratio and for crack lengths above 40% with respect to the width of the specimen.</jats:p> | |
dc.format.extent | 1276-1291 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Wiley | |
dc.subject | crack tip opening displacement | |
dc.subject | digital image correlation (DIC) | |
dc.subject | fatigue crack propagation | |
dc.subject | large-scale yielding (LSY) | |
dc.subject | linear elastic fracture mechanics | |
dc.subject | small-scale yielding (SSY) | |
dc.subject | stress intensity factor | |
dc.title | Evaluation of small‐scale yielding boundary using digital image correlation results | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000754884600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.issue | 4 | |
plymouth.volume | 45 | |
plymouth.publication-status | Published | |
plymouth.journal | Fatigue and Fracture of Engineering Materials and Structures | |
dc.identifier.doi | 10.1111/ffe.13674 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
dcterms.dateAccepted | 2022-01-31 | |
dc.rights.embargodate | 2023-2-14 | |
dc.identifier.eissn | 1460-2695 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1111/ffe.13674 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.type | Journal Article/Review |