Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach

Carbon fiber reinforcement used in concrete has become a remarkable alternative to steel fibers. Admixing short fibers to fresh concrete and processing the material with a 3D printer leads to an orientation of fibers and a material with high uniaxial strength properties, which offers an economic use...

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Autores principales:	Philipp Lauff, Polina Pugacheva, Matthias Rutzen, Ursula Weiß, Oliver Fischer, Dirk Volkmer, Malte A. Peter, Christian U. Grosse
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbon short fiber reinforced concrete multi-scale modeling multiple microcracking RVE 3D-printed concrete CT material analysis Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/416c8d3405244256be2a70c73bd91193
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spelling	oai:doaj.org-article:416c8d3405244256be2a70c73bd911932021-11-25T18:15:37ZEvaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach10.3390/ma142270051996-1944https://doaj.org/article/416c8d3405244256be2a70c73bd911932021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/7005https://doaj.org/toc/1996-1944Carbon fiber reinforcement used in concrete has become a remarkable alternative to steel fibers. Admixing short fibers to fresh concrete and processing the material with a 3D printer leads to an orientation of fibers and a material with high uniaxial strength properties, which offers an economic use of fibers. To investigate its mechanical behavior, the material is subjected to flexural and tensional tests, combining several measuring techniques. Numerical analysis complements this research. Computed tomography is used with several post-processing algorithms for separating matrix and fibers. This helps to validate fiber alignment and serves as input data for numerical analysis with representative volume elements concatenating real fiber position and orientation with the three-dimensional stress tensor. Flexural and uniaxial tensional tests are performed combining multiple measuring techniques. Next to conventional displacement and strain measuring methods, sound emission analysis, in terms of quantitative event analysis and amplitude appraisal, and also high-resolution digital image correlation accompany the tests. Due to the electrical conductibility of carbon fibers, the material’s resistivity could be measured during testing. All sensors detect the material’s degradation behavior comparably, showing a strain-hardening effect, which results from multiple, yet locally restricted and distributed, microcracks arising in combination with plastic deformation.Philipp LauffPolina PugachevaMatthias RutzenUrsula WeißOliver FischerDirk VolkmerMalte A. PeterChristian U. GrosseMDPI AGarticlecarbon short fiber reinforced concretemulti-scale modelingmultiple microcrackingRVE3D-printed concreteCT material analysisTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 7005, p 7005 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon short fiber reinforced concrete multi-scale modeling multiple microcracking RVE 3D-printed concrete CT material analysis Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	carbon short fiber reinforced concrete multi-scale modeling multiple microcracking RVE 3D-printed concrete CT material analysis Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Philipp Lauff Polina Pugacheva Matthias Rutzen Ursula Weiß Oliver Fischer Dirk Volkmer Malte A. Peter Christian U. Grosse Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach
description	Carbon fiber reinforcement used in concrete has become a remarkable alternative to steel fibers. Admixing short fibers to fresh concrete and processing the material with a 3D printer leads to an orientation of fibers and a material with high uniaxial strength properties, which offers an economic use of fibers. To investigate its mechanical behavior, the material is subjected to flexural and tensional tests, combining several measuring techniques. Numerical analysis complements this research. Computed tomography is used with several post-processing algorithms for separating matrix and fibers. This helps to validate fiber alignment and serves as input data for numerical analysis with representative volume elements concatenating real fiber position and orientation with the three-dimensional stress tensor. Flexural and uniaxial tensional tests are performed combining multiple measuring techniques. Next to conventional displacement and strain measuring methods, sound emission analysis, in terms of quantitative event analysis and amplitude appraisal, and also high-resolution digital image correlation accompany the tests. Due to the electrical conductibility of carbon fibers, the material’s resistivity could be measured during testing. All sensors detect the material’s degradation behavior comparably, showing a strain-hardening effect, which results from multiple, yet locally restricted and distributed, microcracks arising in combination with plastic deformation.
format	article
author	Philipp Lauff Polina Pugacheva Matthias Rutzen Ursula Weiß Oliver Fischer Dirk Volkmer Malte A. Peter Christian U. Grosse
author_facet	Philipp Lauff Polina Pugacheva Matthias Rutzen Ursula Weiß Oliver Fischer Dirk Volkmer Malte A. Peter Christian U. Grosse
author_sort	Philipp Lauff
title	Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach
title_short	Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach
title_full	Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach
title_fullStr	Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach
title_full_unstemmed	Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach
title_sort	evaluation of the behavior of carbon short fiber reinforced concrete (csfrc) based on a multi-sensory experimental investigation and a numerical multiscale approach
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/416c8d3405244256be2a70c73bd91193
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Evaluation of the Behavior of Carbon Short Fiber Reinforced Concrete (CSFRC) Based on a Multi-Sensory Experimental Investigation and a Numerical Multiscale Approach

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