Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106732
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | en_US |
dc.creator | Deng, YJ | en_US |
dc.creator | Peng, LF | en_US |
dc.creator | Lai, XM | en_US |
dc.creator | Fu, MW | en_US |
dc.creator | Lin, ZQ | en_US |
dc.date.accessioned | 2024-06-03T02:24:04Z | - |
dc.date.available | 2024-06-03T02:24:04Z | - |
dc.identifier.issn | 0749-6419 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/106732 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2016 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. | en_US |
dc.rights | The following publication Deng, Y. J., Peng, L. F., Lai, X. M., Fu, M. W., & Lin, Z. Q. (2017). Constitutive modeling of size effect on deformation behaviors of amorphous polymers in micro-scaled deformation. International Journal of Plasticity, 89, 197-222 is available at https://doi.org/10.1016/j.ijplas.2016.11.011. | en_US |
dc.subject | Constitutive behavior | en_US |
dc.subject | Elastic-viscoplastic material | en_US |
dc.subject | Polymeric material | en_US |
dc.subject | Size effect | en_US |
dc.title | Constitutive modeling of size effect on deformation behaviors of amorphous polymers in micro-scaled deformation | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 197 | en_US |
dc.identifier.epage | 222 | en_US |
dc.identifier.volume | 89 | en_US |
dc.identifier.doi | 10.1016/j.ijplas.2016.11.011 | en_US |
dcterms.abstract | With the advantages of high-formability, low-cost and unique physical properties, polymers have been widely used in microforming of polymeric components for a large scale of applications in many fields including micro-optics, microfluidic and sensors, etc. In micro-scale, the deformation behaviors of polymers are observed to be size-dependent. Conventional constitutive models of polymers, however, cannot predict and represent those size-dependent behaviors well. To address this issue, a constitutive model with consideration of size effect for amorphous polymers in micro-scale was developed in this research. Firstly, on the basis of the couple stress theory, the impact of rotational gradients was taken into consideration and a strain gradient “elastic-viscoplastic” constitutive model was proposed to quantitatively describe the size-dependent behaviors of amorphous polymers in micro-scale. After that, four point micro-bending experiments were implemented on poly (methyl methacrylate) (PMMA) films with thickness varying from the millimeter scale to micrometer scale. The size effect of PMMA in micro-scale was further illustrated and the proposed strain gradient “elastic-viscoplastic” model was finally validated and verified for the capability of modeling of the size effect of amorphous polymers in micro-scaled deformation. This research thus advances the understanding of the size effect and the strain gradient based mechanical behaviors of amorphous polymers and facilitates its applications in industries. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | International journal of plasticity, Feb. 2017, v. 89, p. 197-222 | en_US |
dcterms.isPartOf | International journal of plasticity | en_US |
dcterms.issued | 2017-02 | - |
dc.identifier.scopus | 2-s2.0-85007578874 | - |
dc.description.validate | 202405 bcwh | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0836 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China; Shanghai Subject Chief Scientist | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 6710361 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Fu_Constitutive_Modeling_Size.pdf | Pre-Published version | 2.67 MB | Adobe PDF | View/Open |
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