Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths
This paper discusses new experiments with the X0-specimen taken from steel sheets and numerical simulations to investigate the influence of proportional and non-proportional loading on damage and failure processes in the moderate stress state regime. The numerical simulations were based on a phenome...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Physical Sciences Forum |
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| Online Access: | https://www.mdpi.com/2673-9984/4/1/23 |
| _version_ | 1797609309613326336 |
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| author | Moritz Zistl Steffen Gerke Michael Brünig |
| author_facet | Moritz Zistl Steffen Gerke Michael Brünig |
| author_sort | Moritz Zistl |
| collection | DOAJ |
| description | This paper discusses new experiments with the X0-specimen taken from steel sheets and numerical simulations to investigate the influence of proportional and non-proportional loading on damage and failure processes in the moderate stress state regime. The numerical simulations were based on a phenomenological, thermodynamically consistent anisotropic continuum damage model considering the effect of stress triaxiality and the Lode parameter on damage behavior. The proportional and non-proportional loading histories were compared and analyzed. During the experiments, digital image correlation (DIC) was used to assess strain fields on the surface of the specimens, while scanning electron microscopy allowed for an analysis of fracture surfaces (SEM). Numerical simulations reveal stress distributions and the evolution of stress states during the load path. The findings show the effectiveness of the experimental program for highly ductile metals, the accuracy of the presented continuum model as well as the influence of loading history on damage and failure behavior in steel sheets. |
| first_indexed | 2024-03-11T05:59:42Z |
| format | Article |
| id | doaj.art-ea5e868101084117991914c9e803c823 |
| institution | Directory Open Access Journal |
| issn | 2673-9984 |
| language | English |
| last_indexed | 2024-03-11T05:59:42Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Physical Sciences Forum |
| spelling | doaj.art-ea5e868101084117991914c9e803c8232023-11-17T13:33:46ZengMDPI AGPhysical Sciences Forum2673-99842022-08-01412310.3390/psf2022004023Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load PathsMoritz Zistl0Steffen Gerke1Michael Brünig2Institut für Mechanik und Statik, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, D-85577 Neubiberg, GermanyInstitut für Mechanik und Statik, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, D-85577 Neubiberg, GermanyInstitut für Mechanik und Statik, Universität der Bundeswehr München, Werner-Heisenberg-Weg 39, D-85577 Neubiberg, GermanyThis paper discusses new experiments with the X0-specimen taken from steel sheets and numerical simulations to investigate the influence of proportional and non-proportional loading on damage and failure processes in the moderate stress state regime. The numerical simulations were based on a phenomenological, thermodynamically consistent anisotropic continuum damage model considering the effect of stress triaxiality and the Lode parameter on damage behavior. The proportional and non-proportional loading histories were compared and analyzed. During the experiments, digital image correlation (DIC) was used to assess strain fields on the surface of the specimens, while scanning electron microscopy allowed for an analysis of fracture surfaces (SEM). Numerical simulations reveal stress distributions and the evolution of stress states during the load path. The findings show the effectiveness of the experimental program for highly ductile metals, the accuracy of the presented continuum model as well as the influence of loading history on damage and failure behavior in steel sheets.https://www.mdpi.com/2673-9984/4/1/23ductile metalsbiaxial experimentsdamagedigital image correlationnon-proportional loading |
| spellingShingle | Moritz Zistl Steffen Gerke Michael Brünig Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths Physical Sciences Forum ductile metals biaxial experiments damage digital image correlation non-proportional loading |
| title | Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths |
| title_full | Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths |
| title_fullStr | Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths |
| title_full_unstemmed | Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths |
| title_short | Experiments on Damage and Failure Behavior of Biaxially Loaded Specimens under Non-Proportional Load Paths |
| title_sort | experiments on damage and failure behavior of biaxially loaded specimens under non proportional load paths |
| topic | ductile metals biaxial experiments damage digital image correlation non-proportional loading |
| url | https://www.mdpi.com/2673-9984/4/1/23 |
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