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Materials 2015, 8(9), 6154-6162; doi:10.3390/ma8095298

Three-Point Bending Fracture Behavior of Single Oriented Crossed-Lamellar Structure in Scapharca broughtonii Shell

1
Institute of Materials Physics and Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
2
Key Laboratory for Anisotropy and Texture Engineering of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China
*
Author to whom correspondence should be addressed.
Academic Editor: Juergen Stampfl
Received: 29 July 2015 / Revised: 28 August 2015 / Accepted: 6 September 2015 / Published: 15 September 2015
(This article belongs to the Section Biomaterials)
View Full-Text   |   Download PDF [3971 KB, uploaded 15 September 2015]   |  

Abstract

The three-point bending strength and fracture behavior of single oriented crossed-lamellar structure in Scapharca broughtonii shell were investigated. The samples for bending tests were prepared with two different orientations perpendicular and parallel to the radial ribs of the shell, which corresponds to the tiled and stacked directions of the first-order lamellae, respectively. The bending strength in the tiled direction is approximately 60% higher than that in the stacked direction, primarily because the regularly staggered arrangement of the second-order lamellae in the tiled direction can effectively hinder the crack propagation, whereas the cracks can easily propagate along the interfaces between lamellae in the stacked direction. View Full-Text
Keywords: Scapharca broughtonii shell; crossed-lamellar structure; three-point bending; strength; fracture Scapharca broughtonii shell; crossed-lamellar structure; three-point bending; strength; fracture
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ji, H.-M.; Zhang, W.-Q.; Wang, X.; Li, X.-W. Three-Point Bending Fracture Behavior of Single Oriented Crossed-Lamellar Structure in Scapharca broughtonii Shell. Materials 2015, 8, 6154-6162.

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