This study developed and validated finite element (FE) models of swine and human thoraxes and abdomens that had subject-specific anatomies and could accurately and efficiently predict body responses to blunt impacts. Anatomies of the rib cage, torso walls, thoracic, and abdominal organs were reconstructed from X-ray computed tomography (CT) images and extracted into geometries to build FE meshes. The rib cage was modeled as an inhomogeneous beam structure with geometry and bone material parameters determined directly from CT images. Meshes of soft components were generated by mapping structured mesh templates representative of organ topologies onto the geometries. The swine models were developed from and validated by 30 animal tests in which blunt insults were applied to swine subjects and CT images, chest wall motions, lung pressures, and pathological data were acquired. A comparison of the FE calculations of animal responses and experimental measurements showed a good agreement. The errors in calculated response time traces were within 10% for most tests. Calculated peak responses showed strong correlations with the experimental values. The stress concentration inside the ribs, lungs, and livers produced by FE simulations also compared favorably to the injury locations. A human FE model was developed from CT images from the Visible Human project and was scaled to simulate historical frontal and side post mortem human subject (PMHS) impact tests. The calculated chest deformation also showed a good agreement with the measurements. The models developed in this study can be of great value for studying blunt thoracic and abdominal trauma and for designing injury prevention techniques, equipments, and devices.
Issue Section:
Research Papers
1.
Goldfarb
, M. A.
, Ciurej
, T. F.
, Weinstein
, M. A.
, and Metker
, L. W.
, 1975, “A Method for Soft Body Armor Evaluation: Medical Assessment
,” Edgewood Arsenal Aberdeen Proving Ground, Report No. EB-TR-74073.2.
Metker
, L. W.
, Prather
, R. N.
, and Johnson
, E. M.
, 1975, “A Method for Determining Backface Signatures of Soft Body Armors
,” Edgewood Arsenal Aberdeen Proving Ground, Report No. EB-TR-75029.3.
Montanarelli
, N.
, Hawkins
, C. E.
, Goldfarb
, M. A.
, and Ciurej
, T. F.
, 1973, “Protective Garments for Public Officials
,” Edgewood Arsenal Aberdeen Proving Ground, Report No. LWL-CR-30B73.4.
Prather
, R. N.
, Swann
, C. L.
, and Hawkins
, C. E.
, 1977, “Backface Signatures of Soft Body Armors and the Associated Trauma Effects
,” Army Armament Research and Development Command Aberdeen Proving Ground Md Chemical Systems Laboratory, Report No. ARCSL-TR-77055.5.
Soderstrom
, C. A.
, Carroll
, A. W.
, and Hawkins
, C. E.
, 1978, “The Medical Assessment of a New Soft Body Armor
,” Army Armament Research and Development Command, Aberdeen Proving Ground Md Chemical Systems Laboratory, Report No. ARCSL-TR-77057 and No. ADE410 002.6.
Sturdivan
, L.
, 2000, “Non-Lethal Weapons Assessment: Deterrence and Injury
,” Joint Non-Lethal Weapons Directorate, Quantico, VI.7.
Tamura
, A.
, Omori
, K.
, Miki
, K.
, Lee
, J. B.
, Yang
, K. H.
, and King
, A. I.
, 2002, “Mechanical Characterization of Porcine Abdominal Organs
,” SAE 46th Stapp Car Crash Conference
, pp. 53
–69
.8.
Fung
, Y. C.
, Yen
, R. T.
, Tao
, Z. L.
, and Liu
, S. Q.
, 1988, “A Hypothesis on the Mechanism of Trauma of Lung Tissue Subjected to Impact Load
,” ASME J. Biomech. Eng.
0148-0731, 110
(1
), pp. 50
–56
.9.
King
, A. I.
, 1984, “A Review of Biomechanical Models
,” ASME J. Biomech. Eng.
0148-0731, 106
(2
), pp. 97
–104
.10.
King
, A. I.
, 1993, “Progress of Research on Impact Biomechanics
,” ASME J. Biomech. Eng.
0148-0731 115
(4B
), pp. 582
–587
.11.
Andriacchi
, T.
, Schultz
, A.
, Belytschko
, T.
, and Galante
, J.
, 1974, “A Model for Studies of Mechanical Interactions Between the Human Spine and Rib Cage
,” J. Biomech.
0021-9290 7
(6
), pp. 497
–507
.12.
Chen
, P. H.
, 1978, “Finite Element Dynamic Structural Model of the Human Thorax for Chest Impact Response and Injury Studies
,” Aviat., Space Environ. Med.
0095-6562 49
(1
), pp. 143
–149
.13.
Sundaram
, S. H.
, and Feng
, C. C.
, 1977, “Finite Element Analysis in the Human Thorax
,” J. Biomech.
0021-9290 10
(8
), pp. 505
–516
.14.
15.
Wang
, K.
, and Yang
, K. H.
, 1998, “The Development of a Finite Element Human Thorax Model
,” Proceeding of the 1998 Advances in Bioengineering, The 1998 ASME International Mechanical Engineering Congress and Explosions
, ASME
, New York
, Vol. 39
, pp. 161
–162
.16.
Wang
, K.
, 1995, “Development of a Side Impact Finite Element Human Thoracic Model
,” Ph.D. thesis, College of Engineering, Wayne State University.17.
Plank
, G. R.
, Kleinberger
, M.
, Eppinger
, R. H.
, 1998, “Analytical Investigation of Driver Thoracic Response to Out of Position Airbag Deployment
,” SAE 42nd Stapp Car Crash Conference Proceedings
, Warrendale
, PA
, Paper No. 983165.18.
Lizee
, E.
, Robin
, S.
, Song
, E.
, Bertholon
, N.
, Le Coz
, J. Y.
, Besnault
, B.
, and Lavaste
, F.
, 1998, “Development of a 3D Finite Element Model of the Human Body
,” SAE 42nd Stapp Crash Conference Proceedings
, Warrendale
, PA
, Paper No. 983152.19.
Deng
, Y.-C.
, and Chang
, F.
, 2000, “Development of a Fintie Element Human Throax Model
,” F8B, GM North America Car Group.20.
Chang
, H. S.
, 2001, “The Development, Validation, and Comparison of a Finite Element Human Thorax Model for Automotive Injury
,” Ph.D. thesis, Mechanical Engineering, University of Iowa.21.
Huang
, Y.
, King
, A. I.
, and Cavanaugh
, J. M.
, 1994, “Finite Element Modeling of Gross Motion of Human Cadavers in Side Impact
,” SAE 38th Stapp Crash Conference
, Warrendale
, PA
, Paper No. 942207.22.
Lee
, J. B.
, 2002, “Development of a Finite Element Model of the Human Abdomen
,” Ph.D. thesis, Wayne State University.23.
Roberts
, J. C.
, O’Connor
, J. V.
, and Ward
, E. E.
, 2005, “Modeling the Effect of Non-Penetrating Ballistic Impact as a Means of Detecting Behind Armor Trauma
,” J. Trauma: Inj., Infect., Crit. Care
1079-6061, 58
, 1241
–1251
.24.
Kroell
, C. K.
, Schneider
, D. C.
, and Nahum
, A. M.
, (1972), “Impact Tolerance and Response of the Human Thorax
,” SAE 15th Stapp Car Crash Conference
, New York
, Paper No. 710851, pp. 84
–134
.25.
Viano
, D. C.
, Lau
, I. V.
, Asbury
, C.
, King
, A. I.
, and Begeman
, P.
, 1989, “Biomechanics of the Human Chest, Abdomen, and Pelvis in Lateral Impact
,” Accid. Anal Prev.
0001-4575, 21
(6
), pp. 553
–574
.26.
Shen
, W.
, Niu
, Y.
, and Stuhmiller
, J. H.
, 2003, “Body Armor Blunt Trauma Assessment
,” Report No. J3150-20-03-200.27.
Rho
, J. Y.
, Hobatho
, M. C.
, and Ashman
, R. B.
, 1995, “Relations of Mechanical Properties to Density and CT Numbers in Human Bone
,” Med. Eng. Phys.
1350-4533, 17
(5
), pp. 347
–55
.28.
Taylor
, W. R.
, Roland
, E.
, Ploeg
, H.
, Hertig
, D.
, Klabunde
, R.
, Warner
, M. D.
, Hobatho
, M. C.
, Rakotomanana
, L.
, Clift
, S. E.
, 2002, “Determination of Orthotropic Bone Elastic Constants Using FEA and Modal Analysis
,” J. Biomech.
0021-9290, 35
(6
), 767
–773
.29.
Goldstein
, S. A.
, Matthews
, L. S.
, Kuhn
, J. L.
, and Hollister
, S. J.
, 1991, “Trabecular Bone Remodeling: An Experimental Model
,” J. Biomech.
0021-9290, 24
, pp. 135
–150
.30.
Niu
, Y.
, Shen
, W.
, and Stuhmiller
, J. H.
, 2007, “Finite Element Models of Rib as an Inhomogeneous Beam Structure Under High-Speed Impacts
,” Med. Eng. Phys.
1350-4533, 29
(7
), pp. 788
–798
.31.
Gilbertson
, L. G.
, 1993, “Mechanisms of Fracture and Biomechanics of Orthoses in Thoracolumbar Injuries
,” Diss. Abstr. Int., B
0419-4217, 54
(9B
), pp. 47
–99
.32.
Patwardhan
, A. G.
, Li
, S. P.
, Gavin
, T.
, Lorenz
, M.
, Meade
, K. P.
, and Zindrick
, M.
, 1990, “Orthotic Stabilization of Thoracolumbar Injuries: A Biomechanical Analysis of the Jewett Hyperextension Orthosis
,” Spine
0362-2436, 15
(7
), pp. 654
–661
.33.
Yoganandan
, N.
, Kumaresan
, S.
, and Pintar
, F. A.
, 2000, “Geometric and Mechanical Properties of Human Cervical Spine Ligaments
,” ASME J. Biomech. Eng.
0148-0731, 122
(6
), pp. 623
–629
.34.
Closkey
, R. F.
, Schultz
, A. B.
, and Luchies
, C. W.
, 1992, “A Model for Studies of the Deformable Rib Cage
,” J. Biomech.
0021-9290, 25
, 529
–539
.35.
Lee
, M.
, Kelly
, D. W.
, and Steven
, G. P.
, 1995, “A Model of Spine, Ribcage and Pelvic Responses to a Specific Lumbar Manipulative Force in Relaxed Subjects
,” J. Biomech.
0021-9290, 28
(11
), pp. 1403
–1408
.36.
Couteau
, B.
, Payan
, Y.
, and Lavallee
, S.
, 2000, “The Mesh-Matching Algorithm: An Automatic 3D Mesh Generator for Finite Element Structures
,” J. Biomech.
0021-9290, 33
, pp. 1005
–1009
.37.
Schneiders
, R.
, and Bunten
, R.
, 1995, “Automatic Generation of Hexahedral Finite Element Meshes
,” Comput. Aided Geom. Des.
0167-8396, 12
, pp. 693
–707
.38.
Yamada
, H.
, 1970, Strength of Biological Materials
, Williams and Wilkins
, Baltimore
.39.
Truong
, X. T.
, 1974, “Viscoelastic Wave Propagation and Rheologic Properties of Skeletal Muscle
,” Am. J. Physiol.
0002-9513, 226
(2
), 256
–264
.40.
Fung
, Y. C.
, 1993, Biomechanics Mechanical Properties of Living Tissues
, Springer
, New York
.41.
Fung
, Y. C.
, Tong
, P.
, and Patitucci
, P.
, 1978, “Stress and Strain in the Lung
,” J. Engrg. Mech. Div.
0044-7951, 104
(1
), pp. 201
–223
.42.
Vawter
, D. L.
, 1980, “Finite Element Model for Macroscopic Deformation of the Lung
,” ASME J. Biomech. Eng.
0148-0731, 102
(1
), pp. 1
–7
.43.
Fung
, Y. C.
, Yen
, M. R.
, Zeng
, Y. J.
, 1985, “Characterization and Modeling of Thoraco-Abdominal Response to Blast Waves, Vol. 3: Lung Dynamics and Mechanical Properties Determination
,” JAYCOR, Report No. A966981.44.
McCulloch
, A. D.
, and Omens
, J. H.
, (1991). “Non-Homogeneous Analysis of Three-Dimensional Transmural Finite Deformation in Canine Ventricular Myocardium
,” J. Biomech.
0021-9290, 24
(7
), pp. 539
–548
.45.
Gucciione
, J. M.
, and McCulloch
, A. D.
, 1991, Finite Element Modeling of Ventricular Myocardium
, Springer
, New York
.46.
Eisler
, R. D.
, Chatterjee
, A. K.
, EI-Raheb
, M.
, and Stone
, S. F.
, 2004, “Development of a Pain Likelihood Model for Blunt Muntions
,” ATK Mission Research Corp., Report No. MRC-R-04-0209.47.
Currey
, J. D.
, 1990, “Physical Characteristics Affecting the Tensile Failure Properties of Compact Bone
,” J. Biomech.
0021-9290, 23
(8
), pp. 837
–844
.48.
Kaneko
, T. S.
, Pejcic
, M. R.
, Tehranzadeh
, J.
, and Keyak
, J. H.
, 2003, “Relationships Between Material Properties and CT Scan Data of Cortical Bone With and Without Metastatic Lesions
,” Med. Eng. Phys.
1350-4533, 25
(6
), pp. 445
–454
.49.
Reilly
, D. T.
, and Burstein
, A. H.
, 1975, “The Elastic and Ultimate Properties of Compact Bone Tissue
,” J. Biomech.
0021-9290, 8
(6
), pp. 393
–405
.50.
Stuhmiller
, J. H.
, Ho
, K. H.
, Vander Vorst
, M. J.
, Dodd
, K. T.
, Fitzpatrick
, T.
, and Mayorga
, M.
, 1996, “A Model of Blast Overpressure Injury to the Lung
,” J. Biomech.
0021-9290, 29
(2
), pp. 227
–234
.51.
Miller
, M. A.
, 2005, “The Biomechanical Response of the Lower Abdomen to Belt Restraint Loading
,” J. Trauma: Inj., Infect., Crit. Care
1079-6061, 29
(11
), pp. 1571
–1584
.52.
Viano
, D. C.
, Kroell
, C. K.
, and Warner
, C. Y.
, 1976, “Comparative Thoracic Impact Response of Living and Sacrificed Porcine Siblings
,” SAE 20th Stapp Car Crash Conference
, pp. 629
–708
.53.
Shen
, W.
, Niu
, Y.
, and Stuhmiller
, J. H.
, 2005, “Biomechanically Based Criteria for Rib Fractures Induced by High-Speed Impact
,” J. Trauma: Inj., Infect., Crit. Care
1079-6061, 58
, pp. 538
–545
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