Modeling of failure of the human cervical spine in the course of the car collision with the road barrier - Project - Bridge of Knowledge

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Modeling of failure of the human cervical spine in the course of the car collision with the road barrier

The aim of the project is to propose the numerical model of a human-occupied car crash against road safety barriers. The particular goal of the proposed research is to derive the mathematical description of a spine’s soft tissues behavior with the emphasis on the cervical part during highly nonlinear dynamic events, such as collisions against cable, steel or concrete barriers. The motivation for the research follows from the investigations of General Director for National Roads and Motorways (Generalna Dyrekcja Dróg Krajowych i Autostrad) into recommendations for design and usage of barriers mounted at Polish highways and expressways. Specifically, the most frequent injuries should be considered, that is those of the cervical spine. The knowledge about the potential range of injuries may have an impact on the recommendations for selection of barrier types in Poland. The original aspect of this project is to develop 2D and 3D anisotropic material law for modelling ligaments subjected to high speed dynamic loads as well as propose anisotropic viscoelastic material law for spinal cord.. Material parameters for soft tissues are to be acquired directly from the experiments performed on the human cervical spines. The experimental static tests will be done using surface imagining of strain variation system and dynamical test will be done using impulse load and high speed cameras. The numerical models will be validated by numerical simulations of experimental tests using authors’ FEM codes and LS-DYNA system. The results obtained during the project will be original on a global scale and will help in better understanding of mathematical and numerical description of cervical spine’s soft tissues during impact dynamics. The obtained conclusions may appear useful for medical personnel that assists the victims of real accidents by giving information about expected injuries depending on the conditions of the event. The proposed project requires an interdisciplinary research, conducted both by scientists from Gdańsk University of Technology and from Medical University of Gdańsk, into socially important aspects of human health and safety. The undertaken research will serve as the basis for scientific development and thus a step toward scientific degrees or titles for members of the research teams will be taken.

Details

Financial Program Name:
OPUS
Organization:
Narodowe Centrum Nauki (NCN) (National Science Centre)
Agreement:
UMO-2020/37/B/ST8/03231 z dnia 2021-01-11
Realisation period:
2021-01-11 - 2024-01-10
Project manager:
prof. dr hab. inż. Krzysztof Wilde
Team members:
Realised in:
Katedra Wytrzymałości Materiałów
External institutions
participating in project:
  • Gdański Uniwersytet Medyczny (Poland)
Project's value:
1 472 400.00 PLN
Request type:
National Research Programmes
Domestic:
Domestic project
Verified by:
Gdańsk University of Technology

Papers associated with that project

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Year 2024

Year 2023

  • Development and validation of lumbar spine finite element model
    Publication

    - PeerJ - Year 2023

    The functional biomechanics of the lumbar spine have been better understood by finite element method (FEM) simulations. However, there are still areas where the behavior of soft tissues can be better modeled or described in a different way. The purpose of this research is to develop and validate a lumbar spine section intended for biomechanical research. A FE model of the 50th percentile adult male (AM) Total Human Model for Safety...

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  • On implementation of fibrous connective tissues’ damage in Abaqus software
    Publication

    - JOURNAL OF BIOMECHANICS - Year 2023

    Connective fibrous tissues, such as tendons and ligaments, in humans and animals exhibit hyperelastic behaviour. The constitution of the material of these tissues is anisotropic due to the presence of the collagen fibres, where one family of fibres is the typical case. Traumatic events and/or aging may sometimes lead to the damage of the tissue. The study of motion of affected joints or limbs is usually not permitted in vivo. This...

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Year 2021

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