Dynamic Similitude of Human Head Surrogates
Tóm tắt
Due to the highly transient nature of head injury events that lead to traumatic brain injury (TBI) and the complexity of the human head, a structural-dynamics-informed design process is needed to augment research efforts that utilize human head surrogate models. Such models are capable of accurately mimicking the response of biological systems and allow for models that explore biological differences between individuals. This study explores the relevant mechanisms and parameters that contribute to the dynamic response of biological and additive manufactured surrogate head models and proposes an iterative design process to compare the two systems. Using experimental and finite element method (FEM) modal analysis, a balance between geometric complexity, computational resources, and manufacturability are considered when building a head model for obtaining pressures, strains, or other relevant injury indicators similar to that of a biological system. This study used a simplified ellipsoid head model to meaningfully change the response of the additive manufactured model similar to a model simulated with biological material properties. Additionally, a single layer of a digital material was used to mimic the dynamic response of the simulated head surrogate with two layers of biological materials; the scalp, and the skull. This study successfully outlined and exhibited the most basic application of a structural-dynamics-informed design process to create improved head surrogate models and to effectively compare the results from current head surrogate models to real biological systems.
Từ khóa
Tài liệu tham khảo
A.B. Peterson, H. Zhou, K.E. Thomas, Disparities in traumatic brain injury-related deaths—United States, 2020. J. Safety Res. 83, 419–426 (2022). https://doi.org/10.1016/j.jsr.2022.10.001
S. Fujiwara, Y. Yanagida, Y. Mizoi, Impact-induced intracranial pressure caused by an accelerated motion of the head or by skull deformation; an experimental study using physical models of the head and neck, and ones of the skull. Forensic Sci. Int. 43(2), 159–169 (1989). https://doi.org/10.1016/0379-0738(89)90132-1
K. Laksari, L.C. Wu, M. Kurt, C. Kuo, D.C. Camarillo, Resonance of human brain under head acceleration. J. R. Soc. Interface. 12(108), 20150331 (2015). https://doi.org/10.1098/rsif.2015.0331
K. Laksari, M. Kurt, H. Babaee, S. Kleiven, D. Camarillo, Mechanistic insights into human brain impact dynamics through modal analysis. Phys. Rev. Lett. 120(13), 138101 (2018). https://doi.org/10.1103/PhysRevLett.120.138101
A. Eslaminejad, M. Hosseini-Farid, M. Ramzanpour, M. Ziejewski, G. Karami, “Determination of Mechanical Properties of Human Skull with Modal Analysis,” in Volume 3: Biomedical and Biotechnology Engineering (American Society, 2018). https://doi.org/10.1115/IMECE2018-88103
T.B. Khalil, D.C. Viano, D.L. Smith, Experimental analysis of the vibrational characteristics of the human skull. J. Sound Vib. 63(3), 351–376 (1979). https://doi.org/10.1016/0022-460X(79)90679-5
R. Willinger, L. Taleb, and P. Pradoura, Head biomechanics: from the finite element model to the physical model. Engineering, Medicine. Corpus ID: 106683365 (1995). https://www.semanticscholar.org/paper/HEAD-BIOMECHANICS%3A-FROM-THE-FINITE-ELEMENT-MODEL-TOWillinger-Taleb/5db4eb07f2b74ce512cf47b6a4e7b6d6daa64474. Accessed 14 Mar 2024
H. Lamb, On the vibrations of an elastic sphere. Proc. Lond. Math. Soc. s1–13(1), 189–212 (1881). https://doi.org/10.1112/plms/s1-13.1.189
H. Lamb, On the vibrations of a spherical shell. Proc. Lond. Math. Soc. s1–14(1), 50–56 (1882). https://doi.org/10.1112/plms/s1-14.1.50
A. W. Leissa, Vibration of shells, 1973. U.S. Government Printing Office, Washington, D.C [Online]. Available: https://ntrs.nasa.gov/api/citations/19730018197/downloads/19730018197.pdf. Accessed 8 Nov 2023
S.M. Ko, J.H. Kang, Free vibration analysis of shallow and deep ellipsoidal shells having variable thickness with and without a top opening. Acta Mech. 228(12), 4391–4409 (2017). https://doi.org/10.1007/s00707-017-1932-2
J.H. Kang, Vibrations of hemi-ellipsoidal shells of revolution with eccentricity from a three-dimensional theory. JVC/J Vib Control 21(2), 285–299 (2015). https://doi.org/10.1177/1077546313489326
Y. C. Chang and L. Demkowicz, “Vibrations of a Spherical Shell Comparison of 3-D Elasticity and Kirchhoff Shell Theory Results,” 1994.
J. Peterson, P.C. Dechow, Material properties of the human cranial vault and zygoma. Anat. Rec. A Discov. Mol. Cell. Evol. Biol.Discov Mol Cell Evol Biol 274(1), 785–797 (2003). https://doi.org/10.1002/ar.a.10096
Stratasys, Digital ABS Plus. https://www.stratasys.com/contentassets/545da59a2ed143a7b73cc0057d7e6401/mds_pj_digitalabsplus_0822a_print.pdf?v=4a5677.
A. Jackson, A. Koster, F. Hasan, A. Adnan, Impact Testing of a Surrogate Human Head Model for Correlation of Bulk Acceleration to Intracranial Pressure. Multiscale Sci. Eng. 5(1–2), 35–52 (2023). https://doi.org/10.1007/s42493-023-00090-7
S. M. Garn, S. Selby, R. Young, Scalp thickness and the fat-loss theory of balding. AMA Arch Derm Syphilol. 70(5), 601–608. https://doi.org/10.1001/archderm.1954.01540230051006
L. Falland-Cheung et al., Mechanical properties of the human scalp in tension. J. Mech. Behav. Biomed. Mater.Behav. Biomed. Mater. 84, 188–197 (2018). https://doi.org/10.1016/j.jmbbm.2018.05.024