In situ estimation of fatigue crack parameters by digital image correlation under cyclic loading with single overload
| Parent link: | IOP Conference Series: Materials Science and Engineering Vol. 511 : Perspective Materials of Constructional and Medical Purpose.— 2019.— [012014, 6 p.] |
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| Ente Autore: | |
| Altri autori: | , , , , |
| Riassunto: | Title screen The paper represents the investigation of crack propagation in aluminium alloy AA2024 in a case of constant cyclic loading with single overload. The parameters of the process were evaluated by means of optical and noncontact digital image correlation technique which allows precise in situ measurements and provides local strain data. There have been analysed strain fields, local strains at the crack tip and crack closure level in order to reveal the effect of overload on crack growth parameters. Results are consistent with published data and developed mathematical models - the highest impact is emerged when crack extended into overload plastic zone by 30%. |
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2019
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| Soggetti: | |
| Accesso online: | http://dx.doi.org/10.1088/1757-899X/511/1/012014 http://earchive.tpu.ru/handle/11683/55443 |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660536 |
| Riassunto: | Title screen The paper represents the investigation of crack propagation in aluminium alloy AA2024 in a case of constant cyclic loading with single overload. The parameters of the process were evaluated by means of optical and noncontact digital image correlation technique which allows precise in situ measurements and provides local strain data. There have been analysed strain fields, local strains at the crack tip and crack closure level in order to reveal the effect of overload on crack growth parameters. Results are consistent with published data and developed mathematical models - the highest impact is emerged when crack extended into overload plastic zone by 30%. |
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| DOI: | 10.1088/1757-899X/511/1/012014 |