ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION
Understanding the mechanical behavior of carbon fiber reinforced polymers requires knowledge on the deformation behavior of carbon fibers, they are highly anisotropic and heterogeneous. Nanoindentation is an efficient method for determining the mechanical properties in small volumes of materials. Fo...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
CTU Central Library
2020-06-01
|
Series: | Acta Polytechnica CTU Proceedings |
Subjects: | |
Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/6699 |
_version_ | 1818546099937345536 |
---|---|
author | Thimmappa Shetty Guruprasad Vincent Keryvin Alain Bourmaud |
author_facet | Thimmappa Shetty Guruprasad Vincent Keryvin Alain Bourmaud |
author_sort | Thimmappa Shetty Guruprasad |
collection | DOAJ |
description | Understanding the mechanical behavior of carbon fiber reinforced polymers requires knowledge on the deformation behavior of carbon fibers, they are highly anisotropic and heterogeneous. Nanoindentation is an efficient method for determining the mechanical properties in small volumes of materials. For isotropic materials, a single nanoindentation test can evaluate an elastic properties of the material. But for anisotropic material, the difficulty increases since measured indentation modulus depends on five elastic parameters (El,Et,Glt, νlt,and νtt) of the material. Nanoindentation experiments are performed on carbon fibers orientated between 0° to 90° at ten different orientations to the fiber axis. From theoretical models given by Vlassak et al. and Delafargue and Ulm, the elastic constants are predicted numerically by comparing the results of indentation modulus versus orientation angle with the experiments. |
first_indexed | 2024-12-12T07:48:37Z |
format | Article |
id | doaj.art-486bdc65c002412dbfa165e79a356893 |
institution | Directory Open Access Journal |
issn | 2336-5382 |
language | English |
last_indexed | 2024-12-12T07:48:37Z |
publishDate | 2020-06-01 |
publisher | CTU Central Library |
record_format | Article |
series | Acta Polytechnica CTU Proceedings |
spelling | doaj.art-486bdc65c002412dbfa165e79a3568932022-12-22T00:32:31ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822020-06-0127010711110.14311/APP.2020.27.01075229ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATIONThimmappa Shetty Guruprasad0Vincent Keryvin1Alain Bourmaud2University of Bretagne Sud, UMR CNRS 6027, IRDL, 27 rue Armand Guillemot BP 92116, 56321 Lorient, FranceUniversity of Bretagne Sud, UMR CNRS 6027, IRDL, 27 rue Armand Guillemot BP 92116, 56321 Lorient, FranceUniversity of Bretagne Sud, UMR CNRS 6027, IRDL, 27 rue Armand Guillemot BP 92116, 56321 Lorient, FranceUnderstanding the mechanical behavior of carbon fiber reinforced polymers requires knowledge on the deformation behavior of carbon fibers, they are highly anisotropic and heterogeneous. Nanoindentation is an efficient method for determining the mechanical properties in small volumes of materials. For isotropic materials, a single nanoindentation test can evaluate an elastic properties of the material. But for anisotropic material, the difficulty increases since measured indentation modulus depends on five elastic parameters (El,Et,Glt, νlt,and νtt) of the material. Nanoindentation experiments are performed on carbon fibers orientated between 0° to 90° at ten different orientations to the fiber axis. From theoretical models given by Vlassak et al. and Delafargue and Ulm, the elastic constants are predicted numerically by comparing the results of indentation modulus versus orientation angle with the experiments.https://ojs.cvut.cz/ojs/index.php/APP/article/view/6699anisotropy, carbon fibers, nanoindentation |
spellingShingle | Thimmappa Shetty Guruprasad Vincent Keryvin Alain Bourmaud ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION Acta Polytechnica CTU Proceedings anisotropy, carbon fibers, nanoindentation |
title | ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION |
title_full | ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION |
title_fullStr | ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION |
title_full_unstemmed | ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION |
title_short | ESTIMATION OF ANISOTROPIC ELASTIC PROPERTIES OF CARBON FIBERS USING NANOINDENTATION |
title_sort | estimation of anisotropic elastic properties of carbon fibers using nanoindentation |
topic | anisotropy, carbon fibers, nanoindentation |
url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/6699 |
work_keys_str_mv | AT thimmappashettyguruprasad estimationofanisotropicelasticpropertiesofcarbonfibersusingnanoindentation AT vincentkeryvin estimationofanisotropicelasticpropertiesofcarbonfibersusingnanoindentation AT alainbourmaud estimationofanisotropicelasticpropertiesofcarbonfibersusingnanoindentation |