Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/106520
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Mechanical Engineering | - |
dc.creator | Gao, Y | - |
dc.creator | Guo, Z | - |
dc.creator | Song, Z | - |
dc.creator | Yao, H | - |
dc.date.accessioned | 2024-05-09T00:54:01Z | - |
dc.date.available | 2024-05-09T00:54:01Z | - |
dc.identifier.issn | 0022-5096 | - |
dc.identifier.uri | http://hdl.handle.net/10397/106520 | - |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Ltd | en_US |
dc.rights | © 2017 Elsevier Ltd. All rights reserved. | en_US |
dc.rights | © 2017. 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 Gao, Y., Guo, Z., Song, Z., & Yao, H. (2017). Spiral interface: A reinforcing mechanism for laminated composite materials learned from nature. Journal of the Mechanics and Physics of Solids, 109, 252-263 is available at https://doi.org/10.1016/j.jmps.2017.09.002. | en_US |
dc.subject | Bio-inspired materials | en_US |
dc.subject | Biomineralized materials | en_US |
dc.subject | Delamination | en_US |
dc.subject | Microscopic screw dislocation | en_US |
dc.title | Spiral interface : a reinforcing mechanism for laminated composite materials learned from nature | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 252 | - |
dc.identifier.epage | 263 | - |
dc.identifier.volume | 109 | - |
dc.identifier.doi | 10.1016/j.jmps.2017.09.002 | - |
dcterms.abstract | Helical structures are ubiquitous in nature at length scales of a wide range. In this paper, we studied a helical architecture called microscopic screw dislocation (μ-SD), which is prevalently present in biological laminated composites such as shells of mollusks P. placenta and nacre of abalone. Mechanical characterization indicated that μ-SDs can greatly enhance resistance to scratching. To shed light on the underlying reinforcing mechanisms, we systematically investigated the mechanical behaviors of μ-SD using theoretical modeling in combination with finite element simulation. Our analysis on an individual μ-SD showed that the failure of a μ-SD under tension involves the delamination of the prolonged spiral interface, giving rise to much higher toughness compared to those of the planar counterpart. The corporation of multiple μ-SDs was further investigated by analyzing the effect of μ-SD density on the mechanical reinforcement. It was found that higher areal density of μ-SD would lead to more improvement in toughness. However, the operation of such reinforcing mechanism of μ-SD requires proclivity of cracking along the spiral interface, which is not spontaneous but conditional. Fracture mechanics-based modeling indicated that the proclivity of crack propagation along the spiral interface can be ensured if the fracture toughness of the interface is less than 60% of that of the lamina material. These findings not only uncover the reinforcing mechanisms of μ-SDs in biological materials but imply a great promise of applying μ-SDs in reinforcing synthetic laminated composites. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of the mechanics and physics of solids, Dec .2017, v. 109, p. 252-263 | - |
dcterms.isPartOf | Journal of the mechanics and physics of solids | - |
dcterms.issued | 2017-12 | - |
dc.identifier.scopus | 2-s2.0-85029231494 | - |
dc.identifier.eissn | 1873-4782 | - |
dc.description.validate | 202405 bcch | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | ME-0753 | en_US |
dc.description.fundingSource | RGC | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 6781444 | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Yao_Spiral_Interface_Reinforcing.pdf | Pre-Published version | 1.66 MB | Adobe PDF | View/Open |
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