Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites
To address a critical aspect of the fast growing use of composites in aircraft and aerospace industry, the influence of the porosity on the shear strength of composites property was investigated as a mean for determining the critical values of porosity. Acid digestion techniques were applied to dete...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2010-03-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100014 |
| _version_ | 1818941696550895616 |
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| author | Antonio Carlos Ancelotti Junior Luiz Claudio Pardini Eduardo Marcelo Bezerra Dennis Roach |
| author_facet | Antonio Carlos Ancelotti Junior Luiz Claudio Pardini Eduardo Marcelo Bezerra Dennis Roach |
| author_sort | Antonio Carlos Ancelotti Junior |
| collection | DOAJ |
| description | To address a critical aspect of the fast growing use of composites in aircraft and aerospace industry, the influence of the porosity on the shear strength of composites property was investigated as a mean for determining the critical values of porosity. Acid digestion techniques were applied to determine the void volume ratio of two families of carbon epoxy laminates (8 and 16 plies). Ultrasonic inspections revealed the corresponding attenuation coefficients. The void morphology was investigated by optical microscopy. Results from Interlaminar shear and Iosipescu shear tests were correlated with the attenuation coefficient to determine critical values of porosity using a modified Mar-Lin fracture criteria. It has been shown that the shear strength decrease with the increase of void volume ratio and the effects are more significant in thicker laminates. This work showed that by using the Mar-Lin criteria the singularity order, which is an indicative of the sensibility to voids in composites, is dependent of type of loading and void distribution. |
| first_indexed | 2024-12-20T06:59:39Z |
| format | Article |
| id | doaj.art-c5b350967d964ae5912a4ce6ce887110 |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-20T06:59:39Z |
| publishDate | 2010-03-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-c5b350967d964ae5912a4ce6ce8871102022-12-21T19:49:14ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392010-03-01131636910.1590/S1516-14392010000100014Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix compositesAntonio Carlos Ancelotti JuniorLuiz Claudio PardiniEduardo Marcelo BezerraDennis RoachTo address a critical aspect of the fast growing use of composites in aircraft and aerospace industry, the influence of the porosity on the shear strength of composites property was investigated as a mean for determining the critical values of porosity. Acid digestion techniques were applied to determine the void volume ratio of two families of carbon epoxy laminates (8 and 16 plies). Ultrasonic inspections revealed the corresponding attenuation coefficients. The void morphology was investigated by optical microscopy. Results from Interlaminar shear and Iosipescu shear tests were correlated with the attenuation coefficient to determine critical values of porosity using a modified Mar-Lin fracture criteria. It has been shown that the shear strength decrease with the increase of void volume ratio and the effects are more significant in thicker laminates. This work showed that by using the Mar-Lin criteria the singularity order, which is an indicative of the sensibility to voids in composites, is dependent of type of loading and void distribution.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100014carbon epoxy compositesporositymechanical testingoptical microscopy |
| spellingShingle | Antonio Carlos Ancelotti Junior Luiz Claudio Pardini Eduardo Marcelo Bezerra Dennis Roach Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites Materials Research carbon epoxy composites porosity mechanical testing optical microscopy |
| title | Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites |
| title_full | Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites |
| title_fullStr | Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites |
| title_full_unstemmed | Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites |
| title_short | Use of the mar-lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites |
| title_sort | use of the mar lin criteria to determine the influence of porosity on the iosipescu and short beam shear properties in carbon fiber polymer matrix composites |
| topic | carbon epoxy composites porosity mechanical testing optical microscopy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100014 |
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