Do impact spatters depend on impact velocity, impact energy or impactor shape?

Date
2021-11-19
Authors
Faflak, Richard
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Nature
Altmetrics
Authors
Research Projects
Organizational Units
Mechanical Engineering
Organizational Unit
Journal Issue
Series
Department
Mechanical Engineering
Abstract
This experimental study investigates the parameters controlling the spatial distribution and size distribution of blood spatter stains. An experimental setup consisting of two cylinders colliding along their main axes is used to produce spatter patterns, under conditions where the impact velocity and kinetic energy of the impact are independently controlled. The resulting spatter patterns are scanned and made available as digital images. Characteristic distributions of stain sizes and stain positions, as well as the number of stains, are measured. The influence of the velocity and kinetic energy of the impact, as well as the shape of the impactor, is quantified and interpreted. An energy analysis is performed and provides a criterion based on dimensionless parameters to determine which impact conditions influence the spatter pattern. High-resolution images of the 19 spatter patterns produced during the study are made available in an open-access repository.
Comments
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00348-021-03341-1. Copyright 2021 The Author(s). Posted with permission.
Description
Keywords
Citation
DOI
Collections