Viscous criterion and its relation with the projectile-thorax energy interactions

Thota, Narasimha and Epaarachchi, Jayantha and Lau, Kin Tak (2014) Viscous criterion and its relation with the projectile-thorax energy interactions. In: 8th Australasian Congress on Applied Mechanics, 24-26 Nov 2014, Melbourne, Australia.

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Despite many injury criteria to measure thoracic trauma in known engineering parameters,
viscous criterion, that is a product of maximum instantaneous velocity of thorax deformation and
maximum instantaneous chest compression, has been widely used. Using Lobdell mathematical model
of the thorax, Wang [1] has carried out analytical studies and proved that peak viscous response is
related to the peak energy storing rate of the thorax and also proved that it does not related to viscosity
of the thorax. Authors have carried out a scholastic study by impacting a FE model thorax MTHOTA
(Mechanical THOrax for Trauma Assessment), which is fully validated for blunt ballistic impacts, with a
foam nose projectile with speeds of 30 – 90 m/s with an increment of 5 m/s. VCmax values and projectile
– thorax energy interactions were evaluated and presented in this paper. From the outcome of the
simulations, relation between maximum stored energy (

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: No indication of copyright restrictions.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 21 Feb 2015 01:58
Last Modified: 05 Jul 2017 00:11
Uncontrolled Keywords: thoracic injury, blunt ballistic impacts, MTHOTA thorax surrogate, viscous criterion, projectile-thorax interaction.
Fields of Research : 09 Engineering > 0903 Biomedical Engineering > 090302 Biomechanical Engineering
Socio-Economic Objective: A Defence > 81 Defence > 8101 Defence > 810104 Emerging Defence Technologies

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