Micromechanical model for isolated polymer-colloid clusters under tension
Binary polymer-colloid (PC) composites form the majority of biological load-bearing materials. Due to the abundance of the polymer and particles, and their simple aggregation process, PC clusters are used broadly by nature to create biomaterials with a variety of functions. However, our understandin...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017
|
| Online Access: | http://hdl.handle.net/1721.1/106951 https://orcid.org/0000-0001-7779-0424 https://orcid.org/0000-0001-5554-1283 |
| _version_ | 1826196635508539392 |
|---|---|
| author | Dargazany, Roozbeh Khalili, Leila Itskov, Mikhail Lin, Jiaqi Chen, Hsieh Alexander-Katz, Alfredo |
| 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 Khalili, Leila Itskov, Mikhail Lin, Jiaqi Chen, Hsieh Alexander-Katz, Alfredo |
| author_sort | Dargazany, Roozbeh |
| collection | MIT |
| description | Binary polymer-colloid (PC) composites form the majority of biological load-bearing materials. Due to the abundance of the polymer and particles, and their simple aggregation process, PC clusters are used broadly by nature to create biomaterials with a variety of functions. However, our understanding of the mechanical features of the clusters and their load transfer mechanism is limited. Our main focus in this paper is the elastic behavior of close-packed PC clusters formed in the presence of polymer linkers. Therefore, a micromechanical model is proposed to predict the constitutive behavior of isolated polymer-colloid clusters under tension. The mechanical response of a cluster is considered to be governed by a backbone chain, which is the stress path that transfers most of the applied load. The developed model can reproduce the mean behavior of the clusters and is not dependent on their local geometry. The model utilizes four geometrical parameters for defining six shape descriptor functions which can affect the geometrical change of the clusters in the course of deformation. The predictions of the model are benchmarked against an extensive set of simulations by coarse-grained-Brownian dynamics, where clusters with different shapes and sizes were considered. The model exhibits good agreement with these simulations, which, besides its relative simplicity, makes the model an excellent add-on module for implementation into multiscale models of nanocomposites. |
| first_indexed | 2024-09-23T10:30:52Z |
| format | Article |
| id | mit-1721.1/106951 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:30:52Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1069512022-09-27T09:54:02Z Micromechanical model for isolated polymer-colloid clusters under tension Dargazany, Roozbeh Khalili, Leila Itskov, Mikhail Lin, Jiaqi Chen, Hsieh Alexander-Katz, Alfredo Massachusetts Institute of Technology. Department of Materials Science and Engineering Koch Institute for Integrative Cancer Research at MIT Lin, Jiaqi Chen, Hsieh Alexander-Katz, Alfredo Binary polymer-colloid (PC) composites form the majority of biological load-bearing materials. Due to the abundance of the polymer and particles, and their simple aggregation process, PC clusters are used broadly by nature to create biomaterials with a variety of functions. However, our understanding of the mechanical features of the clusters and their load transfer mechanism is limited. Our main focus in this paper is the elastic behavior of close-packed PC clusters formed in the presence of polymer linkers. Therefore, a micromechanical model is proposed to predict the constitutive behavior of isolated polymer-colloid clusters under tension. The mechanical response of a cluster is considered to be governed by a backbone chain, which is the stress path that transfers most of the applied load. The developed model can reproduce the mean behavior of the clusters and is not dependent on their local geometry. The model utilizes four geometrical parameters for defining six shape descriptor functions which can affect the geometrical change of the clusters in the course of deformation. The predictions of the model are benchmarked against an extensive set of simulations by coarse-grained-Brownian dynamics, where clusters with different shapes and sizes were considered. The model exhibits good agreement with these simulations, which, besides its relative simplicity, makes the model an excellent add-on module for implementation into multiscale models of nanocomposites. National Science Foundation (U.S.) (CAREER Award DMR-1054671) MIT International Science and Technology Initiatives (MISTI-Germany) United States. Dept. of Transportation. UTC Center for Highway Pavement Preservation 2017-02-15T21:59:54Z 2017-02-15T21:59:54Z 2016-10 2016-06 2016-10-10T22:00:11Z Article http://purl.org/eprint/type/JournalArticle 2470-0045 2470-0053 http://hdl.handle.net/1721.1/106951 Dargazany, Roozbeh et al. “Micromechanical Model for Isolated Polymer-Colloid Clusters under Tension.” Physical Review E 94.4 (2016): n. pag. © 2016 American Physical Society https://orcid.org/0000-0001-7779-0424 https://orcid.org/0000-0001-5554-1283 en http://dx.doi.org/10.1103/PhysRevE.94.042501 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Dargazany, Roozbeh Khalili, Leila Itskov, Mikhail Lin, Jiaqi Chen, Hsieh Alexander-Katz, Alfredo Micromechanical model for isolated polymer-colloid clusters under tension |
| title | Micromechanical model for isolated polymer-colloid clusters under tension |
| title_full | Micromechanical model for isolated polymer-colloid clusters under tension |
| title_fullStr | Micromechanical model for isolated polymer-colloid clusters under tension |
| title_full_unstemmed | Micromechanical model for isolated polymer-colloid clusters under tension |
| title_short | Micromechanical model for isolated polymer-colloid clusters under tension |
| title_sort | micromechanical model for isolated polymer colloid clusters under tension |
| url | http://hdl.handle.net/1721.1/106951 https://orcid.org/0000-0001-7779-0424 https://orcid.org/0000-0001-5554-1283 |
| work_keys_str_mv | AT dargazanyroozbeh micromechanicalmodelforisolatedpolymercolloidclustersundertension AT khalilileila micromechanicalmodelforisolatedpolymercolloidclustersundertension AT itskovmikhail micromechanicalmodelforisolatedpolymercolloidclustersundertension AT linjiaqi micromechanicalmodelforisolatedpolymercolloidclustersundertension AT chenhsieh micromechanicalmodelforisolatedpolymercolloidclustersundertension AT alexanderkatzalfredo micromechanicalmodelforisolatedpolymercolloidclustersundertension |