Local strain quantification of a porous carbon fiber network material
While porous materials’ wide range of attractive functional properties have led to their development for a variety of applications, their intrinsically stochastic microstructures prevent straightforward approaches to predicting their mechanical behavior. This is attributed to the mechanisms that gov...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024040210 |
| _version_ | 1797224140040568832 |
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| author | R.N. Quammen P.F. Rottmann |
| author_facet | R.N. Quammen P.F. Rottmann |
| author_sort | R.N. Quammen |
| collection | DOAJ |
| description | While porous materials’ wide range of attractive functional properties have led to their development for a variety of applications, their intrinsically stochastic microstructures prevent straightforward approaches to predicting their mechanical behavior. This is attributed to the mechanisms that govern the macroscale behavior of these materials operating on multiple microstructure-specific length scales spanning several orders of magnitude. The goal of this work was to experimentally observe these operative deformation mechanisms to better improve the development of mechanism-informed models that more accurately predict the behavior of these materials. In this study compression tests were conducted on a porous carbon fiber network material. The resulting macroscale mechanical properties and mesoscale deformation behavior were tied together through digital image correlation (DIC) strain mapping. It was shown that deformation accumulation occurred via both reversible (fiber bending and sliding) and irreversible (fiber and junction failure) ways. The presence of irreversible deformation is indicated by strain being retained after unloading, with values of up to 0.426 locally and 0.248 globally. Local and macroscopic recovery of up to 0.306 and 0.207 strain respectively showcase the operation of reversible deformation. Furthermore, the calculation of energy loss coefficients increasing from 0.016 to 0.371 illustrates that the deformation occurs via dissipative mechanisms. |
| first_indexed | 2024-04-24T13:48:23Z |
| format | Article |
| id | doaj.art-8d5e00a76d414036ba09549c460fffd2 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-24T13:48:23Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-8d5e00a76d414036ba09549c460fffd22024-04-04T05:06:34ZengElsevierHeliyon2405-84402024-03-01106e27990Local strain quantification of a porous carbon fiber network materialR.N. Quammen0P.F. Rottmann1University of Kentucky, Department of Materials Science and Engineering, 177 F. Paul Anderson Tower, Lexington, KY, 40506, USACorresponding author.; University of Kentucky, Department of Materials Science and Engineering, 177 F. Paul Anderson Tower, Lexington, KY, 40506, USAWhile porous materials’ wide range of attractive functional properties have led to their development for a variety of applications, their intrinsically stochastic microstructures prevent straightforward approaches to predicting their mechanical behavior. This is attributed to the mechanisms that govern the macroscale behavior of these materials operating on multiple microstructure-specific length scales spanning several orders of magnitude. The goal of this work was to experimentally observe these operative deformation mechanisms to better improve the development of mechanism-informed models that more accurately predict the behavior of these materials. In this study compression tests were conducted on a porous carbon fiber network material. The resulting macroscale mechanical properties and mesoscale deformation behavior were tied together through digital image correlation (DIC) strain mapping. It was shown that deformation accumulation occurred via both reversible (fiber bending and sliding) and irreversible (fiber and junction failure) ways. The presence of irreversible deformation is indicated by strain being retained after unloading, with values of up to 0.426 locally and 0.248 globally. Local and macroscopic recovery of up to 0.306 and 0.207 strain respectively showcase the operation of reversible deformation. Furthermore, the calculation of energy loss coefficients increasing from 0.016 to 0.371 illustrates that the deformation occurs via dissipative mechanisms.http://www.sciencedirect.com/science/article/pii/S2405844024040210Compressive mechanical propertiesDeformation behaviorDigital image correlation (DIC)Fibrous network materialCarbon fiber |
| spellingShingle | R.N. Quammen P.F. Rottmann Local strain quantification of a porous carbon fiber network material Heliyon Compressive mechanical properties Deformation behavior Digital image correlation (DIC) Fibrous network material Carbon fiber |
| title | Local strain quantification of a porous carbon fiber network material |
| title_full | Local strain quantification of a porous carbon fiber network material |
| title_fullStr | Local strain quantification of a porous carbon fiber network material |
| title_full_unstemmed | Local strain quantification of a porous carbon fiber network material |
| title_short | Local strain quantification of a porous carbon fiber network material |
| title_sort | local strain quantification of a porous carbon fiber network material |
| topic | Compressive mechanical properties Deformation behavior Digital image correlation (DIC) Fibrous network material Carbon fiber |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024040210 |
| work_keys_str_mv | AT rnquammen localstrainquantificationofaporouscarbonfibernetworkmaterial AT pfrottmann localstrainquantificationofaporouscarbonfibernetworkmaterial |