Type

Journal Article

Authors

Michael D. Gilchrist
Michel Destrade
Michael Curtis
Marie Cassidy
Aisling Ní Annaidh

Subjects

Engineering

Topics
experimental study numerical finite element analysis non linear forces computational model predictive model element deletion

A combined experimental and numerical study of stab-penetration forces. (2012)

Abstract The magnitude of force used in a stabbing incident can be difficult to quantify, although the estimate given by forensic pathologists is often seen as 'critical' evidence in medico-legal situations. The main objective of this study is to develop a quantitative measure of the force associated with a knife stabbing biological tissue, using a combined experimental and numerical technique. A series of stab-penetration tests were performed to quantify the force required for a blade to penetrate skin at various speeds and using different 'sharp' instruments. A computational model of blade penetration was developed using ABAQUS/EXPLICIT, a non-linear finite element analysis (FEA) commercial package. This model, which incorporated element deletion along with a suitable failure criterion, is capable of systematically quantifying the effect of the many variables affecting a stab event. This quantitative data could, in time, lead to the development of a predictive model that could help indicate the level of force used in a particular stabbing incident.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

Michael D. Gilchrist, Michel Destrade, Michael Curtis, Marie Cassidy, Aisling Ní Annaidh

Experts in our system

1
M. D. Gilchrist
University College Dublin
Total Publications: 172
 
2
Michel Destrade
National University of Ireland Galway
Total Publications: 106
 
3
Michael Curtis
University College Dublin
 
4
Marie Cassidy
University College Dublin
 
5
Aisling Ní Annaidh
University College Dublin
Total Publications: 17