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Computational Strength Determination of Human Long Bones
Technical Paper
1999-01-1904
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
With the increased number of airbags and other advanced restraint systems, the upper and lower extremities are becoming more widely studied to determine the injury potential from these devices. However, little injury tolerance data exist for whole bones. To address this deficiency, a finite element model of a female upper extremity was created from computed tomography scan data. A constant density of 1.86 g/cm3 was assumed with a previously developed transversely isotropic, elastic- plastic material model that incorporates rate effects through a modification to the longitudinal modulus and yield stress. Qualitative simulations were conducted for tension, compression, and torsion along the long axis of the bone and for three-point bending in the anterior-posterior direction. Failure was shown to occur in the area of weakest strength or greatest load. While some agreement was made with the expected fracture patterns, a greater mesh density is needed to achieve a better prediction of fracture propagation. A calculated quasi-static ultimate failure moment of 31.0 N-m for the radius and 30.8 N-m for the ulna compared favorably with data available in the literature. Dynamic simulations calculated an ultimate failure moment of 100.0 N-m for a supinated forearm and 73.0 N-m for a pronated forearm, both of which agree with previous testing. Using the methods employed here, models of human long bones can be created and used for simulations to predict strength and injury potential where testing might not be practical.
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Citation
Pellettiere, J., "Computational Strength Determination of Human Long Bones," SAE Technical Paper 1999-01-1904, 1999, https://doi.org/10.4271/1999-01-1904.Also In
References
- Bass, C.R. Duma, S.M. Crandall, J.R. Morris, R. Martin, P. Pilkey, W.D. Hurwitz, S. Khaewpong, N. Eppinger, R. Sun, E. 1997 The Interaction of Air Bags with Upper Extremities 41 st Stapp Car Crash Conference SAE Paper 973324
- Carter, D.R. Hayes, W.C. 1977 The Compressive Behavior of Bone as a Two-phase Porous Structure Journal of Bone and Joint Surgery 59 954 962
- Duma, S.M. Schreiber, P. McMaster, J. Crandall, J.R. Bass, C.R. Pilkey, W.D. 1998 Dynamic Injury Tolerances for Long Bones of the Female Upper Extremity Proceedings of the 1998 IRCOBI meeting
- Hardy, W.N. Schneider, L.W. Reed, M.P. Ricci, L.L. 1997 Biomechanical Investigation of Air Bag Induced Upper Extremity Injuries SAE Paper 973325
- Hsu, E.S. Patwadhan, A. G. Meade, K.P. Light, T.R. Martin, W.R. 1993 Cross-Sectional Geometric Properties and Bone Mineral Contents of the Human Radius and Ulna Journal of Biomechanics 26 1307 1318
- Jurist, J.M. Folitz, A.S. 1977 Human Ulnar Bending Stiffness, Mineral Content, Geometry, and Strength Journal of Biomechanics 10 455 459
- Keyak, J.H. Meagher, J.M. Skinner, H.B. Mote, C.D. 1990 Automated Three-Dimensional Modelling of Bone: A New Method Journal of Biomedical Engineering 12 388 397
- Kuppa, S.M. Yeiser, C.W. Oslon, M.B. Taylor, L.M. Morgan, R.M. Eppinger, R. H. 1997 RAID-An Investigative Tool to Study Air Bag/Upper Extremity Interactions SAE Paper 970399
- Marom, S.A. Linden, M.J. 1990 Computer Aided Stress Analysis of Long Bones Utilyzing Computed Tomography Journal of Biomechanics 23 399 404
- McBroom, R.J. Hayes, W.C. Edwards, W.T. Goldberg, R.P. White, A.A. 1985 Prediction of Vertebral Body Compressive Fracture Using Quantitative Computed Tomography Journal of Bone and Joint Surgery 67 1206 1213
- Messerer, O. 1880 Stuttgart
- Motoshima, T. 1960 Studies on the Strength for Bending of Human Long Bones Journal of Kyoto Prefectural Medical University 68
- Pellettiere, J.A. 1998 Material Model for Bone Under Impact Loading Proceedings of the North American Congress on Biomechanics 1998 Waterloo, Canada American Society of Biomechanics
- Pellettiere, J.A. Duma, S.M. Bass, C.R. Crandall, J.R. 1998 Strength of the Female Upper Extremity Models for Aircrew Safety Assessment: Uses, Limitations and Requirements AGARD
- Ruegsegger, P. Durand, E.P. Dambacher, M.A. 1991 Differential Effects of Aging and Disease on Trabecular and Compact Bone Density of the Radius Bone 12 99 105
- Saul, R.A. Backaitis, S.H. Beebe, M. Ore, L. 1996 Hybrid III Dummy Instrumentation and Assessment of Arm Injuries During Air Bag Deployment 40 th Stapp Car Crash Conference SAE Paper 962417
- Swanson, E. Boyd, J.B. Mullholland, R.S. 1990 The Radial Forearm Flap: A Biomechanical Study of the Osteomized Radius Plastic and Reconstructive Surgery 85 267 272
- Yamada, H. 1970 Strength of Biological Materials Williams and Wilkens Baltimore, Maryland