Predicting fracture energies and crack-tip fields of soft tough materials
Soft materials including elastomers and gels are pervasive in biological systems and technological applications. Whereas it is known that intrinsic fracture energies of soft materials are relatively low, how the intrinsic fracture energy cooperates with mechanical dissipation in process zone to give...
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| Format: | Article |
| Language: | en_US |
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Elsevier
2017
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| Online Access: | http://hdl.handle.net/1721.1/108171 https://orcid.org/0000-0001-7015-058X https://orcid.org/0000-0003-1710-9750 https://orcid.org/0000-0001-5387-6186 |
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| author | Zhang, Teng Lin, Shaoting Yuk, Hyunwoo Zhao, Xuanhe |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Zhang, Teng Lin, Shaoting Yuk, Hyunwoo Zhao, Xuanhe |
| author_sort | Zhang, Teng |
| collection | MIT |
| description | Soft materials including elastomers and gels are pervasive in biological systems and technological applications. Whereas it is known that intrinsic fracture energies of soft materials are relatively low, how the intrinsic fracture energy cooperates with mechanical dissipation in process zone to give high fracture toughness of soft materials is not well understood. In addition, it is still challenging to predict fracture energies and crack-tip strain fields of soft tough materials. Here, we report a scaling theory that accounts for synergistic effects of intrinsic fracture energies and dissipation on the toughening of soft materials. We then develop a coupled cohesive-zone and Mullins-effect model capable of quantitatively predicting fracture energies of soft tough materials and strain fields around crack tips in soft materials under large deformation. The theory and model are quantitatively validated by experiments on fracture of soft tough materials under large deformations. We further provide a general toughening diagram that can guide the design of new soft tough materials. |
| first_indexed | 2024-09-23T15:30:58Z |
| format | Article |
| id | mit-1721.1/108171 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:30:58Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/1081712022-10-02T02:49:54Z Predicting fracture energies and crack-tip fields of soft tough materials Zhang, Teng Lin, Shaoting Yuk, Hyunwoo Zhao, Xuanhe Massachusetts Institute of Technology. Department of Mechanical Engineering Zhang, Teng Lin, Shaoting Yuk, Hyunwoo Zhao, Xuanhe Soft materials including elastomers and gels are pervasive in biological systems and technological applications. Whereas it is known that intrinsic fracture energies of soft materials are relatively low, how the intrinsic fracture energy cooperates with mechanical dissipation in process zone to give high fracture toughness of soft materials is not well understood. In addition, it is still challenging to predict fracture energies and crack-tip strain fields of soft tough materials. Here, we report a scaling theory that accounts for synergistic effects of intrinsic fracture energies and dissipation on the toughening of soft materials. We then develop a coupled cohesive-zone and Mullins-effect model capable of quantitatively predicting fracture energies of soft tough materials and strain fields around crack tips in soft materials under large deformation. The theory and model are quantitatively validated by experiments on fracture of soft tough materials under large deformations. We further provide a general toughening diagram that can guide the design of new soft tough materials. United States. Office of Naval Research (N00014-14-1-0528) Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies 2017-04-14T17:54:03Z 2017-04-14T17:54:03Z 2015-07 2015-07 Article http://purl.org/eprint/type/JournalArticle 2352-4316 http://hdl.handle.net/1721.1/108171 Zhang, Teng; Lin, Shaoting; Yuk, Hyunwoo and Zhao, Xuanhe. “Predicting Fracture Energies and Crack-Tip Fields of Soft Tough Materials.” Extreme Mechanics Letters 4 (September 2015): 1–8. © 2015 Elsevier Ltd https://orcid.org/0000-0001-7015-058X https://orcid.org/0000-0003-1710-9750 https://orcid.org/0000-0001-5387-6186 en_US http://dx.doi.org/10.1016/j.eml.2015.07.007 Extreme Mechanics Letters Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier arXiv |
| spellingShingle | Zhang, Teng Lin, Shaoting Yuk, Hyunwoo Zhao, Xuanhe Predicting fracture energies and crack-tip fields of soft tough materials |
| title | Predicting fracture energies and crack-tip fields of soft tough materials |
| title_full | Predicting fracture energies and crack-tip fields of soft tough materials |
| title_fullStr | Predicting fracture energies and crack-tip fields of soft tough materials |
| title_full_unstemmed | Predicting fracture energies and crack-tip fields of soft tough materials |
| title_short | Predicting fracture energies and crack-tip fields of soft tough materials |
| title_sort | predicting fracture energies and crack tip fields of soft tough materials |
| url | http://hdl.handle.net/1721.1/108171 https://orcid.org/0000-0001-7015-058X https://orcid.org/0000-0003-1710-9750 https://orcid.org/0000-0001-5387-6186 |
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