An experimental and numerical investigation of progressive damage analysis in bonded patch repaired CFRP laminates.
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| Title: | An experimental and numerical investigation of progressive damage analysis in bonded patch repaired CFRP laminates. |
|---|---|
| Authors: | Kashfuddoja, Mohammad, Ramji, M1 |
| Source: | Journal of Composite Materials. Feb2015, Vol. 49 Issue 4, p439-456. 18p. |
| Subjects: | Composite materials, Debonding, Carbon fiber-reinforced plastics, Delamination of composite materials, Finite element method |
| Abstract: | The damage evolution in composite material is a complex phenomenon, comprising several interacting failure modes like matrix cracking, fiber breakage, debonding and delamination. Damage initiation, its propagation and ultimate strength prediction of composite structure is of paramount importance for developing reliable and a safer design and utilizing them as primary load bearing one. During service life, these structures get damaged and are often repaired for extending their service life. In the present work, a 3D finite element-based progressive damage model is developed for predicting the failure and post-failure behaviour of notched and repaired panel under tensile load. Failure initiation load, ultimate strength and failure mechanisms are investigated through the developed progressive damage model. The accuracy of developed finite element model is assessed by comparing its prediction with the experimental results obtained from digital image correlation technique and they are found to be in good agreement. In this study, the panels made of carbon/epoxy composite laminates of pure unidirectional and quasi-isotropic stacking sequence are considered. The damaged panel is repaired with both single- and double-sided circular patch of same parent material. Stress-based 3D-Hashin’s failure criterion is used for predicting the damage mechanism. Maximum shear stress and strain criteria are considered to account for patch debonding. It is found that the damage in notched panel always initiates with matrix cracking around the hole. However, damage in repaired panel is influenced by localized patch debonding. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Composite Materials is the property of Sage Publications, Ltd. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 100515629 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: An experimental and numerical investigation of progressive damage analysis in bonded patch repaired CFRP laminates. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kashfuddoja%2C+Mohammad%22">Kashfuddoja, Mohammad</searchLink><br /><searchLink fieldCode="AR" term="%22Ramji%2C+M%22">Ramji, M</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Composite+Materials%22">Journal of Composite Materials</searchLink>. Feb2015, Vol. 49 Issue 4, p439-456. 18p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Composite+materials%22">Composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Debonding%22">Debonding</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+fiber-reinforced+plastics%22">Carbon fiber-reinforced plastics</searchLink><br /><searchLink fieldCode="DE" term="%22Delamination+of+composite+materials%22">Delamination of composite materials</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The damage evolution in composite material is a complex phenomenon, comprising several interacting failure modes like matrix cracking, fiber breakage, debonding and delamination. Damage initiation, its propagation and ultimate strength prediction of composite structure is of paramount importance for developing reliable and a safer design and utilizing them as primary load bearing one. During service life, these structures get damaged and are often repaired for extending their service life. In the present work, a 3D finite element-based progressive damage model is developed for predicting the failure and post-failure behaviour of notched and repaired panel under tensile load. Failure initiation load, ultimate strength and failure mechanisms are investigated through the developed progressive damage model. The accuracy of developed finite element model is assessed by comparing its prediction with the experimental results obtained from digital image correlation technique and they are found to be in good agreement. In this study, the panels made of carbon/epoxy composite laminates of pure unidirectional and quasi-isotropic stacking sequence are considered. The damaged panel is repaired with both single- and double-sided circular patch of same parent material. Stress-based 3D-Hashin’s failure criterion is used for predicting the damage mechanism. Maximum shear stress and strain criteria are considered to account for patch debonding. It is found that the damage in notched panel always initiates with matrix cracking around the hole. However, damage in repaired panel is influenced by localized patch debonding. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Composite Materials is the property of Sage Publications, Ltd. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1177/0021998314521058 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 439 Subjects: – SubjectFull: Composite materials Type: general – SubjectFull: Debonding Type: general – SubjectFull: Carbon fiber-reinforced plastics Type: general – SubjectFull: Delamination of composite materials Type: general – SubjectFull: Finite element method Type: general Titles: – TitleFull: An experimental and numerical investigation of progressive damage analysis in bonded patch repaired CFRP laminates. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kashfuddoja, Mohammad – PersonEntity: Name: NameFull: Ramji, M IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 02 Text: Feb2015 Type: published Y: 2015 Identifiers: – Type: issn-print Value: 00219983 Numbering: – Type: volume Value: 49 – Type: issue Value: 4 Titles: – TitleFull: Journal of Composite Materials Type: main |
| ResultId | 1 |
