Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Quantifying microcracks on fractured bone surfaces - potential use in forensic anthropology

Walden, Steven John, Rowe, Wendy, Mulville, Jacqui ORCID: https://orcid.org/0000-0002-9392-3693, Evans, Sam L. ORCID: https://orcid.org/0000-0003-3664-2569 and Zioupos, Peter 2022. Quantifying microcracks on fractured bone surfaces - potential use in forensic anthropology. [Online]. SSRN: Elsevier. Available at: http://dx.doi.org/10.2139/ssrn.4159550

[thumbnail of SSRN-id4159550 (1).pdf] PDF - Submitted Pre-Print Version
Download (4MB)

Abstract

Bone fracture surface morphology (FSM) can provide valuable information on the cause of failure in forensic and archaeological applications and it depends primarily on three factors, the loading conditions (like strain rate), the ambient conditions (wet or dry bone material) and the quality of bone material itself. The quality of bone material evidently changes in taphonomy as a result of the decomposition process and that in turn is expected to affect FSM. Porcine bones were fractured by a standardised impact during the course of soft tissue decomposition, at 28-day intervals, over 140 days (equivalent to 638 cooling degree days). Measurements of the associated microcracks on the fractured cortical bone surfaces indicated a progressive increase in mean length during decomposition from around 180 µm to 375 µm. The morphology of these microcracks also altered, from multiple intersecting microcracks emanating from a central point at 0-28 cumulative cooling degree days, to longer linear cracks appearing to track lamellae as soft tissue decomposition progressed. The implications of these findings are that taphonomic changes of bone may offer the real possibility of distinguishing perimortem and taphonomic damage and also provide a new surrogate parameter for estimation of post-mortem interval (PMI) in forensics.

Item Type: Website Content
Date Type: Publication
Status: Published
Schools: Dentistry
History, Archaeology and Religion
Engineering
Publisher: Elsevier
ISSN: 1556-5068
Last Modified: 30 Nov 2022 08:51
URI: https://orca.cardiff.ac.uk/id/eprint/152864

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics