Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers
The large strain behavior of filled rubbers is characterized by the strong Mullins effect, permanent set, and induced anisotropy. Strain controlled cyclic tests also exhibit a pronounced hysteresis as a strain rate independent phenomenon. Prediction of these inelastic features in elastomers is an im...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2013
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| Online Access: | http://hdl.handle.net/1721.1/80274 https://orcid.org/0000-0003-3689-6251 |
| _version_ | 1826216748924272640 |
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| author | Dargazany, Roozbeh Itskov, Mikhail |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Dargazany, Roozbeh Itskov, Mikhail |
| author_sort | Dargazany, Roozbeh |
| collection | MIT |
| description | The large strain behavior of filled rubbers is characterized by the strong Mullins effect, permanent set, and induced anisotropy. Strain controlled cyclic tests also exhibit a pronounced hysteresis as a strain rate independent phenomenon. Prediction of these inelastic features in elastomers is an important challenge with immense industrial and technological relevance. In the present paper, a micromechanical model is proposed to describe the inelastic features in the behavior of filled elastomers. To this end, the previously developed network decomposition concept [Dargazany and Itskov Int. J. Solids Struct. 46 2967 (2009)] is extended and an additional network (CP network) is added to the classical elastic rubber (CC) and polymer-filler (PP) networks. The new network is considered to account for the damage of filler aggregates in the cyclic deformation as the source of hysteresis energy loss. The accuracy of the resulting model is evaluated in comparison to a new set of experimental data. |
| first_indexed | 2024-09-23T16:52:49Z |
| format | Article |
| id | mit-1721.1/80274 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:52:49Z |
| publishDate | 2013 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/802742022-09-29T22:05:50Z Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers Dargazany, Roozbeh Itskov, Mikhail Massachusetts Institute of Technology. Department of Materials Science and Engineering Dargazany, Roozbeh The large strain behavior of filled rubbers is characterized by the strong Mullins effect, permanent set, and induced anisotropy. Strain controlled cyclic tests also exhibit a pronounced hysteresis as a strain rate independent phenomenon. Prediction of these inelastic features in elastomers is an important challenge with immense industrial and technological relevance. In the present paper, a micromechanical model is proposed to describe the inelastic features in the behavior of filled elastomers. To this end, the previously developed network decomposition concept [Dargazany and Itskov Int. J. Solids Struct. 46 2967 (2009)] is extended and an additional network (CP network) is added to the classical elastic rubber (CC) and polymer-filler (PP) networks. The new network is considered to account for the damage of filler aggregates in the cyclic deformation as the source of hysteresis energy loss. The accuracy of the resulting model is evaluated in comparison to a new set of experimental data. 2013-08-26T19:01:45Z 2013-08-26T19:01:45Z 2013-07 2013-02 Article http://purl.org/eprint/type/JournalArticle 1539-3755 1550-2376 http://hdl.handle.net/1721.1/80274 Dargazany, Roozbeh, and Mikhail Itskov. “Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers.” Physical Review E 88, no. 1 (July 2013). © 2013 American Physical Society https://orcid.org/0000-0003-3689-6251 en_US http://dx.doi.org/10.1103/PhysRevE.88.012602 Physical Review E Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Dargazany, Roozbeh Itskov, Mikhail Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers |
| title | Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers |
| title_full | Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers |
| title_fullStr | Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers |
| title_full_unstemmed | Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers |
| title_short | Constitutive modeling of the Mullins effect and cyclic stress softening in filled elastomers |
| title_sort | constitutive modeling of the mullins effect and cyclic stress softening in filled elastomers |
| url | http://hdl.handle.net/1721.1/80274 https://orcid.org/0000-0003-3689-6251 |
| work_keys_str_mv | AT dargazanyroozbeh constitutivemodelingofthemullinseffectandcyclicstresssofteninginfilledelastomers AT itskovmikhail constitutivemodelingofthemullinseffectandcyclicstresssofteninginfilledelastomers |