Academic Journal
Special fiber elements for thermal analysis of fiber-reinforced composites.
| Τίτλος: | Special fiber elements for thermal analysis of fiber-reinforced composites. |
|---|---|
| Συγγραφείς: | Wang, Hui, Qin, Qinghua |
| Πηγή: | Engineering Computations; 2011, Vol. 28 Issue 8, p1079-1097, 19p |
| Θεματικοί όροι: | Thermal analysis, Fibrous composites, Kernel functions, Thermal conductivity, Temperature distribution |
| Περίληψη: | Purpose – The purpose of this paper is to present a new special element model for thermal analysis of composites. Design/methodology/approach – A hybrid finite element formulation taking the fundamental solution as kernel function is presented in this work for analyzing the thermal behavior and predicting the effective thermal conductivity of fiber-reinforced composites. A representative volume cell containing single or multiple fibers (or inclusions) is considered to investigate the overall temperature distribution affected by the inclusions and the interactions among them, and to evaluate the effective thermal conductivity of the composites using the presented algorithm with special-purpose inclusion elements. Numerical examples are presented to demonstrate the accuracy and applicability of the proposed method in analyzing fiber-reinforced composites. Findings – The independent intra-element field and frame field, as well as the newly-developed hybrid functional, make the algorithm versatile in terms of element construction, with the result that the related variational functional involves the element boundary integral only. All numerical results are compared with the solutions from ABAQUS and good agreement is observed for all cases, clearly demonstrating the potential applications of the proposed approach to large-scale modeling of fiber-reinforced composites. The usage of special inclusion element can significantly reduce model meshing effort and computing cost, and simultaneously avoid mesh regeneration when the fiber volume fraction is changed. Practical implications – Due to the fact that the established special elements exactly satisfy the interaction of matrix and fiber within the element, only element boundary integrals are involved, thus the algorithm can significantly reduce modeling effort and computing cost with less elements, and simultaneously avoid mesh regeneration when the fiber volume fraction is changed. Originality/value – Based on the special fundamental solution, a newly-constructed inclusion element is applied to a number of test problems involving unit RVCs with multiple fibers to access the accuracy of the model. The effective thermal conductivity of the composites is evaluated for cases of single and multiple fibers using the average temperatures at certain points on a data-collection surface. A new algorithm for evaluating effective properties with special elements is presented. [ABSTRACT FROM AUTHOR] |
| Copyright of Engineering Computations is the property of Emerald Publishing Limited 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.) | |
| Βάση Δεδομένων: | Complementary Index |
| FullText | Links: – Type: other Text: Availability: 0 CustomLinks: – Url: https://www.emerald.com/insight/content/doi/10.1108/02644401111179045 Name: Emerald Insight (All Content) (s7799221) Category: fullText Text: View full text at Emerald MouseOverText: View full text at Emerald |
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| Header | DbId: edb DbLabel: Complementary Index An: 72701968 RelevancyScore: 834 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 834.066711425781 |
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| Items | – Name: Title Label: Title Group: Ti Data: Special fiber elements for thermal analysis of fiber-reinforced composites. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Hui%22">Wang, Hui</searchLink><br /><searchLink fieldCode="AR" term="%22Qin%2C+Qinghua%22">Qin, Qinghua</searchLink> – Name: TitleSource Label: Source Group: Src Data: Engineering Computations; 2011, Vol. 28 Issue 8, p1079-1097, 19p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Thermal+analysis%22">Thermal analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Fibrous+composites%22">Fibrous composites</searchLink><br /><searchLink fieldCode="DE" term="%22Kernel+functions%22">Kernel functions</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+conductivity%22">Thermal conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Purpose – The purpose of this paper is to present a new special element model for thermal analysis of composites. Design/methodology/approach – A hybrid finite element formulation taking the fundamental solution as kernel function is presented in this work for analyzing the thermal behavior and predicting the effective thermal conductivity of fiber-reinforced composites. A representative volume cell containing single or multiple fibers (or inclusions) is considered to investigate the overall temperature distribution affected by the inclusions and the interactions among them, and to evaluate the effective thermal conductivity of the composites using the presented algorithm with special-purpose inclusion elements. Numerical examples are presented to demonstrate the accuracy and applicability of the proposed method in analyzing fiber-reinforced composites. Findings – The independent intra-element field and frame field, as well as the newly-developed hybrid functional, make the algorithm versatile in terms of element construction, with the result that the related variational functional involves the element boundary integral only. All numerical results are compared with the solutions from ABAQUS and good agreement is observed for all cases, clearly demonstrating the potential applications of the proposed approach to large-scale modeling of fiber-reinforced composites. The usage of special inclusion element can significantly reduce model meshing effort and computing cost, and simultaneously avoid mesh regeneration when the fiber volume fraction is changed. Practical implications – Due to the fact that the established special elements exactly satisfy the interaction of matrix and fiber within the element, only element boundary integrals are involved, thus the algorithm can significantly reduce modeling effort and computing cost with less elements, and simultaneously avoid mesh regeneration when the fiber volume fraction is changed. Originality/value – Based on the special fundamental solution, a newly-constructed inclusion element is applied to a number of test problems involving unit RVCs with multiple fibers to access the accuracy of the model. The effective thermal conductivity of the composites is evaluated for cases of single and multiple fibers using the average temperatures at certain points on a data-collection surface. A new algorithm for evaluating effective properties with special elements is presented. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Engineering Computations is the property of Emerald Publishing Limited 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: 10.1108/02644401111179045 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: 1079 Subjects: – SubjectFull: Thermal analysis Type: general – SubjectFull: Fibrous composites Type: general – SubjectFull: Kernel functions Type: general – SubjectFull: Thermal conductivity Type: general – SubjectFull: Temperature distribution Type: general Titles: – TitleFull: Special fiber elements for thermal analysis of fiber-reinforced composites. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Hui – PersonEntity: Name: NameFull: Qin, Qinghua IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: 2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 02644401 Numbering: – Type: volume Value: 28 – Type: issue Value: 8 Titles: – TitleFull: Engineering Computations Type: main |
| ResultId | 1 |