Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique

The characterization of fiber level tensile properties is vital for conducting micromechanical analyses and developing mechanical models of materials and their composites. This characterization is significantly influenced by the precision of diameter estimations, as the load applied is derived from...

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Main Authors: Abebayehu Abdela, Bart Buffel, Belete Sirahbizu, Frederik Desplentere
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Results in Engineering
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Online Access:http://www.sciencedirect.com/science/article/pii/S2590123025000283
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author Abebayehu Abdela
Bart Buffel
Belete Sirahbizu
Frederik Desplentere
author_facet Abebayehu Abdela
Bart Buffel
Belete Sirahbizu
Frederik Desplentere
author_sort Abebayehu Abdela
collection DOAJ
description The characterization of fiber level tensile properties is vital for conducting micromechanical analyses and developing mechanical models of materials and their composites. This characterization is significantly influenced by the precision of diameter estimations, as the load applied is derived from the measurements obtained from the testing machine. In this regard, the diameter found using microscopy denotes the external diameter which is larger than the diameter pertaining to actual load-carrying cross-section. This research introduces a novel method for calculating diameter by taking into account the lignocellulose structure and hydrophilicity of the fiber. This method is needed to allow a more precise representation of tensile properties in both untreated and treated fibers. The determination of the diameter associated with a structural load-bearing cross-sectional area involves establishing the connection between density, mass, and volume subsequent to the determination of density through Helium Pycnometry. The experiment design was framed and analyzed using Python programming, Minitab V21 and JMP 13. The measured density of Enset is 1.38 g/cm3. The tensile strength of the fiber using digital correlation techniques test revealed that 69.44 %, of the fibers attains strength of 500–1000 MPa and 25 % showed a strength of 800–900MPa. The vital role in treated fibers is attributed to the concentration of sodium hydroxide, with the duration of immersion also being a critical factor. Therefore, lignocellulosic structure of Enset fiber must be considered when evaluating its tensile strength. Moreover, chemical treatments can improve the fiber's surface properties, indicating a potential for enhanced performance at the composite level.
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spelling doaj-art-616b763c0f6f4e49a5e8cdf65fbb44b82025-01-12T05:25:38ZengElsevierResults in Engineering2590-12302025-03-0125103940Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation techniqueAbebayehu Abdela0Bart Buffel1Belete Sirahbizu2Frederik Desplentere3Mekelle University, Ethiopian Institute of Technology-Mekelle, School of Mechanical and Industrial Engineering, Mekelle, Ethiopia; Correspondence author at: Mekelle University Ethiopian Institution of Technology, Mekelle, Ethiopia.Department of Materials Engineering, ProPoLiS research group, KU Leuven, Bruges Campus, BelgiumAddis Ababa Science and Technology University, College of Engineering, Addis Ababa, EthiopiaDepartment of Materials Engineering, ProPoLiS research group, KU Leuven, Bruges Campus, BelgiumThe characterization of fiber level tensile properties is vital for conducting micromechanical analyses and developing mechanical models of materials and their composites. This characterization is significantly influenced by the precision of diameter estimations, as the load applied is derived from the measurements obtained from the testing machine. In this regard, the diameter found using microscopy denotes the external diameter which is larger than the diameter pertaining to actual load-carrying cross-section. This research introduces a novel method for calculating diameter by taking into account the lignocellulose structure and hydrophilicity of the fiber. This method is needed to allow a more precise representation of tensile properties in both untreated and treated fibers. The determination of the diameter associated with a structural load-bearing cross-sectional area involves establishing the connection between density, mass, and volume subsequent to the determination of density through Helium Pycnometry. The experiment design was framed and analyzed using Python programming, Minitab V21 and JMP 13. The measured density of Enset is 1.38 g/cm3. The tensile strength of the fiber using digital correlation techniques test revealed that 69.44 %, of the fibers attains strength of 500–1000 MPa and 25 % showed a strength of 800–900MPa. The vital role in treated fibers is attributed to the concentration of sodium hydroxide, with the duration of immersion also being a critical factor. Therefore, lignocellulosic structure of Enset fiber must be considered when evaluating its tensile strength. Moreover, chemical treatments can improve the fiber's surface properties, indicating a potential for enhanced performance at the composite level.http://www.sciencedirect.com/science/article/pii/S2590123025000283AlkalizationEnset fiberLignocelluloseStructureStrengthPycnometry
spellingShingle Abebayehu Abdela
Bart Buffel
Belete Sirahbizu
Frederik Desplentere
Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
Results in Engineering
Alkalization
Enset fiber
Lignocellulose
Structure
Strength
Pycnometry
title Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
title_full Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
title_fullStr Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
title_full_unstemmed Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
title_short Investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
title_sort investigating the effects of alkalization on mechanical properties of enset fibers using digital image correlation technique
topic Alkalization
Enset fiber
Lignocellulose
Structure
Strength
Pycnometry
url http://www.sciencedirect.com/science/article/pii/S2590123025000283
work_keys_str_mv AT abebayehuabdela investigatingtheeffectsofalkalizationonmechanicalpropertiesofensetfibersusingdigitalimagecorrelationtechnique
AT bartbuffel investigatingtheeffectsofalkalizationonmechanicalpropertiesofensetfibersusingdigitalimagecorrelationtechnique
AT beletesirahbizu investigatingtheeffectsofalkalizationonmechanicalpropertiesofensetfibersusingdigitalimagecorrelationtechnique
AT frederikdesplentere investigatingtheeffectsofalkalizationonmechanicalpropertiesofensetfibersusingdigitalimagecorrelationtechnique