Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation
This work suggests a computational model that takes account of effective fibers on toughening in FRC at an early stage of crack formation. We derived the distribution of pressure provoked by a random inclined fiber in the matrix and calculated stresses through integrating the pressure and tangent st...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Marcílio Alves
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| Series: | Latin American Journal of Solids and Structures |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252013000400008&lng=en&tlng=en |
| _version_ | 1818062182905020416 |
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| author | Chong Wang Leandro Ferreira Friedrich |
| author_facet | Chong Wang Leandro Ferreira Friedrich |
| author_sort | Chong Wang |
| collection | DOAJ |
| description | This work suggests a computational model that takes account of effective fibers on toughening in FRC at an early stage of crack formation. We derived the distribution of pressure provoked by a random inclined fiber in the matrix and calculated stresses through integrating the pressure and tangent stress along the fiber/matrix interface with the Kelvin's fundamental solution and the Mindlin's complementary solution. The evolution of spalling in the matrix was traced. The percentages of effective fibers were evaluated with variations in strength, interface resistance, diameter and elasticity modulus. The main conclusion is that low elasticity modulus combined high strength of fibers raises dramatically the effective fibers, which would benefit toughening. |
| first_indexed | 2024-12-10T14:00:09Z |
| format | Article |
| id | doaj.art-058c1558d4264bbf8d099e7f217a5390 |
| institution | Directory Open Access Journal |
| issn | 1679-7825 |
| language | English |
| last_indexed | 2024-12-10T14:00:09Z |
| publisher | Marcílio Alves |
| record_format | Article |
| series | Latin American Journal of Solids and Structures |
| spelling | doaj.art-058c1558d4264bbf8d099e7f217a53902022-12-22T01:45:48ZengMarcílio AlvesLatin American Journal of Solids and Structures1679-782510479781110.1590/S1679-78252013000400008S1679-78252013000400008Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formationChong Wang0Leandro Ferreira Friedrich1Universidade Federal do PampaUniversidade Federal do PampaThis work suggests a computational model that takes account of effective fibers on toughening in FRC at an early stage of crack formation. We derived the distribution of pressure provoked by a random inclined fiber in the matrix and calculated stresses through integrating the pressure and tangent stress along the fiber/matrix interface with the Kelvin's fundamental solution and the Mindlin's complementary solution. The evolution of spalling in the matrix was traced. The percentages of effective fibers were evaluated with variations in strength, interface resistance, diameter and elasticity modulus. The main conclusion is that low elasticity modulus combined high strength of fibers raises dramatically the effective fibers, which would benefit toughening.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252013000400008&lng=en&tlng=enFiber reinforced compositetougheningspallingbridging stressfiber/matrix interfaceKelvin fundamental solution |
| spellingShingle | Chong Wang Leandro Ferreira Friedrich Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation Latin American Journal of Solids and Structures Fiber reinforced composite toughening spalling bridging stress fiber/matrix interface Kelvin fundamental solution |
| title | Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation |
| title_full | Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation |
| title_fullStr | Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation |
| title_full_unstemmed | Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation |
| title_short | Computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation |
| title_sort | computational model of spalling and effective fibers on toughening in fiber reinforced composites at an early stage of crack formation |
| topic | Fiber reinforced composite toughening spalling bridging stress fiber/matrix interface Kelvin fundamental solution |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252013000400008&lng=en&tlng=en |
| work_keys_str_mv | AT chongwang computationalmodelofspallingandeffectivefibersontougheninginfiberreinforcedcompositesatanearlystageofcrackformation AT leandroferreirafriedrich computationalmodelofspallingandeffectivefibersontougheninginfiberreinforcedcompositesatanearlystageofcrackformation |