Real-time visualization of dynamic fractures in porcine bones and the loading-rate effect on their fracture toughness

Zhai, Xuedong; Gao, Jinling; Nie, Yizhou; Guo, Zherui; Kedir, Nesredin; Claus, Ben; Sun, Tao; Fezzaa, Kamel; Xiao, Xianghui; Chen, Weinong W.

doi:10.1016/j.jmps.2019.07.010

Title: Real-time visualization of dynamic fractures in porcine bones and the loading-rate effect on their fracture toughness

Abstract

We visualized, in real time, the dynamic fracture behaviors in porcine cortical bone from humerus and porcine trabecular bone from nasal bone at a high loading rate using highspeed synchrotron X-ray phase-contrast imaging (PCI). Dynamic three-point bending loading was applied on notched bone specimens by a modified Kolsky compression bar and images of the entire fracture events were recorded with an ultra-high-speed camera. Experiments at a quasi-static loading rate on material testing system (MTS) were also performed to identify the loading-rate effects on the fracture toughness of the two types of bone. Three-dimensional synchrotron X-ray computed tomography was conducted to examine the initial microstructures in the bone specimens before mechanical loading. At the dynamic loading rate, the onset locations of crack initiation were found to be independent from the bone types. The deleterious effect of dynamic loading rate on bone's fracture toughness was verified in this study and the crack was found to propagate at higher speeds in cortical bone than in trabecular bone. In a comparison of the observed more torturous crack paths at the quasi-static loading rate, cracks in dynamically loaded bone specimens generally followed the paths with less in-plane deflections and out-of-plane twists. However, our experimental resultsmore »« less

Authors:

Zhai, Xuedong ^[1]; Gao, Jinling ^[1]; Nie, Yizhou ^[1]; Guo, Zherui ^[1]; Kedir, Nesredin ^[1]; Claus, Ben ^[1]; Sun, Tao ^[2]; Fezzaa, Kamel ^[2]; Xiao, Xianghui ^[2]; Chen, Weinong W. ^[1]

Purdue Univ., West Lafayette, IN (United States)
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Publication Date:: Wed Jul 17 00:00:00 EDT 2019

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); US Army Research Laboratory (USARL); US Army Research Office (ARO); US Air Force Office of Scientific Research (AFOSR)

OSTI Identifier:: 1631984

Alternate Identifier(s):: OSTI ID: 1544602; OSTI ID: 1670419

Grant/Contract Number:: AC02-06CH11357; W911NF-17-1-0241; FA9550-16-1-0315

Resource Type:: Accepted Manuscript

Journal Name:: Journal of the Mechanics and Physics of Solids

Additional Journal Information:: Journal Volume: 131; Journal Issue: C; Journal ID: ISSN 0022-5096

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 60 APPLIED LIFE SCIENCES; Cortical bone; Fracture behavior; High-speed X-ray phase contrast imaging; Loading rate; Nasal bone; Trabecular bone

Citation Formats


                    Zhai, Xuedong, Gao, Jinling, Nie, Yizhou, Guo, Zherui, Kedir, Nesredin, Claus, Ben, Sun, Tao, Fezzaa, Kamel, Xiao, Xianghui, and Chen, Weinong W. Real-time visualization of dynamic fractures in porcine bones and the loading-rate effect on their fracture toughness.  United States: N. p., 2019. 
Web.  doi:10.1016/j.jmps.2019.07.010.

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                    Zhai, Xuedong, Gao, Jinling, Nie, Yizhou, Guo, Zherui, Kedir, Nesredin, Claus, Ben, Sun, Tao, Fezzaa, Kamel, Xiao, Xianghui, & Chen, Weinong W. Real-time visualization of dynamic fractures in porcine bones and the loading-rate effect on their fracture toughness.  United States.  https://doi.org/10.1016/j.jmps.2019.07.010

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                    Zhai, Xuedong, Gao, Jinling, Nie, Yizhou, Guo, Zherui, Kedir, Nesredin, Claus, Ben, Sun, Tao, Fezzaa, Kamel, Xiao, Xianghui, and Chen, Weinong W. Wed .  
"Real-time visualization of dynamic fractures in porcine bones and the loading-rate effect on their fracture toughness".  United States.  https://doi.org/10.1016/j.jmps.2019.07.010.  https://www.osti.gov/servlets/purl/1631984.

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@article{osti_1631984,

  title        = {Real-time visualization of dynamic fractures in porcine bones and the loading-rate effect on their fracture toughness},

  author       = {Zhai, Xuedong and Gao, Jinling and Nie, Yizhou and Guo, Zherui and Kedir, Nesredin and Claus, Ben and Sun, Tao and Fezzaa, Kamel and Xiao, Xianghui and Chen, Weinong W.},

  abstractNote = {We visualized, in real time, the dynamic fracture behaviors in porcine cortical bone from humerus and porcine trabecular bone from nasal bone at a high loading rate using highspeed synchrotron X-ray phase-contrast imaging (PCI). Dynamic three-point bending loading was applied on notched bone specimens by a modified Kolsky compression bar and images of the entire fracture events were recorded with an ultra-high-speed camera. Experiments at a quasi-static loading rate on material testing system (MTS) were also performed to identify the loading-rate effects on the fracture toughness of the two types of bone. Three-dimensional synchrotron X-ray computed tomography was conducted to examine the initial microstructures in the bone specimens before mechanical loading. At the dynamic loading rate, the onset locations of crack initiation were found to be independent from the bone types. The deleterious effect of dynamic loading rate on bone's fracture toughness was verified in this study and the crack was found to propagate at higher speeds in cortical bone than in trabecular bone. In a comparison of the observed more torturous crack paths at the quasi-static loading rate, cracks in dynamically loaded bone specimens generally followed the paths with less in-plane deflections and out-of-plane twists. However, our experimental results also indicated that, although the extent was diminished at dynamic loading rate, the crack deflections at osteon cement lines still played a role as a major toughening mechanism to dynamic fractures in transversely orientated cortical bone. (C) 2019 Elsevier Ltd. All rights reserved.},

  doi          = {10.1016/j.jmps.2019.07.010},

  journal      = {Journal of the Mechanics and Physics of Solids},

  number       = C,

  volume       = 131,

  place        = {United States},

  year         = {Wed Jul 17 00:00:00 EDT 2019},

  month        = {Wed Jul 17 00:00:00 EDT 2019}

}

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Cited by: 16 works

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Fig. 1: Schematic of the bone specimen

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