Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6
The effect of the layer thickness of prepreg on the tensile properties and failure behavior of quasi-isotropic (QI) laminates of thermoplastic CFRP consisting of carbon fiber and polyamide 6 was investigated. The layer thickness of each ply was set to 40, 80 and 120 μm by using thin-ply prepreg with...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2022-05-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/88/910/88_22-00073/_pdf/-char/en |
| _version_ | 1828099291047002112 |
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| author | Masachika YAMANE Hideyuki UEMATSU Shuichi TANOUE |
| author_facet | Masachika YAMANE Hideyuki UEMATSU Shuichi TANOUE |
| author_sort | Masachika YAMANE |
| collection | DOAJ |
| description | The effect of the layer thickness of prepreg on the tensile properties and failure behavior of quasi-isotropic (QI) laminates of thermoplastic CFRP consisting of carbon fiber and polyamide 6 was investigated. The layer thickness of each ply was set to 40, 80 and 120 μm by using thin-ply prepreg with the thickness of approximately 40 μm made by tow-spreading technology. As a result, that so-called "Thin-ply Effect" reported for thermosetting CFRP was not remarkable in this study of thermoplastic CFRP composed of CF/PA6. The tensile stress linearly increased with tensile strain up to the maximum tensile stress independent of the layer thickness. The tensile strength and modulus hardly changed with the layer thickness, although the delamination was interestingly inhibited with decrease of layer thickness. However, although the effect of the layer thickness of the prepreg was slight until the maximum tensile stress was reached, the failure behavior at the final breaking was significantly different depending on the layer thickness. Thinner layers inhibited delamination, and as the layer thickness increased, delamination became the dominant failure mode. Therefore, it was clarified that the effect of the layer thickness of prepreg appeared in the fracture behavior at the final failure after reaching the maximum tensile stress in the QI laminates of CF/PA6. |
| first_indexed | 2024-04-11T08:13:44Z |
| format | Article |
| id | doaj.art-6ab6730368264e18b2470b9a438ea64f |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:13:44Z |
| publishDate | 2022-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-6ab6730368264e18b2470b9a438ea64f2022-12-22T04:35:14ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612022-05-018891022-0007322-0007310.1299/transjsme.22-00073transjsmeEffect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6Masachika YAMANE0Hideyuki UEMATSU1Shuichi TANOUE2Headquarters for Innovative Society-Academia Cooperation, University of FukuiResearch Center for Fibers and Materials, University of FukuiResearch Center for Fibers and Materials, University of FukuiThe effect of the layer thickness of prepreg on the tensile properties and failure behavior of quasi-isotropic (QI) laminates of thermoplastic CFRP consisting of carbon fiber and polyamide 6 was investigated. The layer thickness of each ply was set to 40, 80 and 120 μm by using thin-ply prepreg with the thickness of approximately 40 μm made by tow-spreading technology. As a result, that so-called "Thin-ply Effect" reported for thermosetting CFRP was not remarkable in this study of thermoplastic CFRP composed of CF/PA6. The tensile stress linearly increased with tensile strain up to the maximum tensile stress independent of the layer thickness. The tensile strength and modulus hardly changed with the layer thickness, although the delamination was interestingly inhibited with decrease of layer thickness. However, although the effect of the layer thickness of the prepreg was slight until the maximum tensile stress was reached, the failure behavior at the final breaking was significantly different depending on the layer thickness. Thinner layers inhibited delamination, and as the layer thickness increased, delamination became the dominant failure mode. Therefore, it was clarified that the effect of the layer thickness of prepreg appeared in the fracture behavior at the final failure after reaching the maximum tensile stress in the QI laminates of CF/PA6.https://www.jstage.jst.go.jp/article/transjsme/88/910/88_22-00073/_pdf/-char/encfrtpthin-ply prepregquasi-isotropictensile propertiesfailure behavior |
| spellingShingle | Masachika YAMANE Hideyuki UEMATSU Shuichi TANOUE Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6 Nihon Kikai Gakkai ronbunshu cfrtp thin-ply prepreg quasi-isotropic tensile properties failure behavior |
| title | Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6 |
| title_full | Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6 |
| title_fullStr | Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6 |
| title_full_unstemmed | Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6 |
| title_short | Effect of layer thickness of prepreg on tensile properties of quasi-isotropic carbon fiber reinforced polyamide 6 |
| title_sort | effect of layer thickness of prepreg on tensile properties of quasi isotropic carbon fiber reinforced polyamide 6 |
| topic | cfrtp thin-ply prepreg quasi-isotropic tensile properties failure behavior |
| url | https://www.jstage.jst.go.jp/article/transjsme/88/910/88_22-00073/_pdf/-char/en |
| work_keys_str_mv | AT masachikayamane effectoflayerthicknessofprepregontensilepropertiesofquasiisotropiccarbonfiberreinforcedpolyamide6 AT hideyukiuematsu effectoflayerthicknessofprepregontensilepropertiesofquasiisotropiccarbonfiberreinforcedpolyamide6 AT shuichitanoue effectoflayerthicknessofprepregontensilepropertiesofquasiisotropiccarbonfiberreinforcedpolyamide6 |