Аpplication of the mathematical model of human torso for modeling abbreval influence in wound ballistics

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Abstract. In the work, a review of scientific articles on the behavior of tissues and organs of the human body under local mechanical effects on it, as well as a description of the physico-mechanical properties of biological materials. The selection of mechanical behavior for each biological material as part of a mathematical model of the human torso was carried out, its finite element model was created, validation experiments were modeled using data presented in the literature. An original calculation model of a human torso with a tuned interaction of organs with each other was developed. Contact interaction parameters are determined. The developed computational model of a human torso was verified based on data from open sources for an experiment with mechanical action by a cylindrical impactor. An algorithm for processing pressure and acceleration graphs has been implemented in order to obtain tolerance curves. A specialized modular program has been created for the automated processing of calculation results and the output of the main results. 42 numerical tests were carried out simulating the entry of a steel ball into each of 21 zones for power engineers of 40 and 80 J. According to the results of the tests for each organ, pressure and acceleration tolerance curves were obtained, animations of the behavior of organs under shock were created, visualization of the pressure field propagation in organs was obtained torso.

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About the authors

A. V. Denisov

Military medical academy of S.M. Kirov

Author for correspondence.
Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

M. D. Stepanov

Peter the Great St.Petersburg Polytechnic University

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

N. A. Haraldin

Peter the Great St.Petersburg Polytechnic University

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

A. V. Stepanov

Peter the Great St.Petersburg Polytechnic University

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

A. I. Borovkov

Peter the Great St.Petersburg Polytechnic University

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

I. E. Zhukov

Rzhevsky Research Testing Certification Center

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

E. D. Kurinnoy

Open Joint Stock Company "Spetsmedtekhnika"

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg

S. G. Tsurikov

5th test center of military unit 09703

Email: vmeda-nio@mil.ru
Russian Federation, Saint Petersburg


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Supplementary files

Supplementary Files
1. Fig. 1. Scheme of EP formation in the soft tissues of the human body: 1 - bullet; 2 - armored package; 3 - soft tissues; 4 - temporary cavity

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2. Fig. 2. Design model of a human torso: a - front view; b - side view

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3. Fig. 3. Frontal impact of the impactor into the chest: a - direction and area of impact of the impactor; b - location of the displacement sensor

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4. Fig. 4. Position of the chest when exposed to the impactor: a - before the impact of the impactor; b - 0.02 s after the impact of the impactor

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5. Fig. 5. Position of the chest when exposed to the impactor (cross-sectional view): a - before the impact of the impactor; b - 0.02 s after the impact of the impactor

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6. Fig. 6. Firing zones of the calculated model of the human torso

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Copyright (c) 2020 Denisov A.V., Stepanov M.D., Haraldin N.A., Stepanov A.V., Borovkov A.I., Zhukov I.E., Kurinnoy E.D., Tsurikov S.G.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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