Effects of tissue preservation temperature on high strain-rate material properties of brainJiangyue Zhang
Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
J Biomech 44:391-6. 2011
..Therefore, it is necessary to incorporate material properties obtained from appropriately preserved tissues to accurately predict the responses of brain using stress analyses models, such as finite element simulations...
Role of translational and rotational accelerations on brain strain in lateral head impactJiangyue Zhang
Medical College of Wisconsin, Milwaukee, WI, USA
Biomed Sci Instrum 42:501-6. 2006
..Results indicated that rotational acceleration contributes more than 90% of total strain, and translational acceleration produces minimal strain. Therefore, the rotational component is a more important biomechanical metric in this study...
- Influence of angular acceleration-deceleration pulse shapes on regional brain strains
Narayan Yoganandan
Department of Neurosurgery, Medical College of Wisconsin and VA Medical Center, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
J Biomech 41:2253-62. 2008
..Acceleration followed by deceleration pulse produced greater strains in all regions than the other form of biphasic pulse. Thus, pulse shape appears to have an effect on regional strains in the brain...
- Regional brain strains and role of falx in lateral impact-induced head rotational acceleration
Jianrong Li
Department of Neurosurgery, Medical College of Wisconsin and VA Medical Center, Milwaukee, WI, USA
Biomed Sci Instrum 43:24-9. 2007
..These preliminary findings indicate that the flexibility of falx has an effect on regional brain strains in lateral impact...
Dynamic biomechanics of the human head in lateral impactsJiangyue Zhang
Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
Ann Adv Automot Med 53:249-56. 2009
..These data will help to establish injury criteria and threshold in lateral impacts for improved automotive protection and help clinicians understand the biomechanics of lateral head impact from improved diagnosis...
- Experimental study of blast-induced traumatic brain injury using a physical head model
Jiangyue Zhang
Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
Stapp Car Crash J 53:215-27. 2009
..These quantitative results also served as the validation and calibration data for computer simulation models of blast brain injuries...
- Upper neck forces and moments and cranial angular accelerations in lateral impact
Narayan Yoganandan
Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI, 53226, USA
Ann Biomed Eng 36:406-14. 2008
..Findings from this study with a limited dataset are valuable in establishing response corridors for side impacts and evaluating side impact dummies used in crashworthiness and safety-engineering studies...
- Moment-rotation responses of the human lumbosacral spinal column
Yabo Guan
Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, 8701 Watertown Plank Road, WI 53226, USA
J Biomech 40:1975-80. 2007
..These experimental data are useful in the improved validation of FE models, which will increase the confidence of stress analysis and other modeling applications...
- Experimental model for civilian ballistic brain injury biomechanics quantification
Jiangyue Zhang
Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
J Biomech 40:2341-6. 2007
..Models using Sylgard gel and FMJ projectiles are appropriate to enhance understanding and mechanisms of ballistic brain injury...
- Brain strains in vehicle impact tests
Jiangyue Zhang
Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
Annu Proc Assoc Adv Automot Med 50:1-12. 2006
..3 to 9.4 krad/s ( 2 ) ) or HIC (68-778). Rotational accelerations appeared to be the major cause of strain-induced brain injury...
- Physical properties of the human head: mass, center of gravity and moment of inertia
Narayan Yoganandan
Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
J Biomech 42:1177-92. 2009
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- Validation of a clinical finite element model of the human lumbosacral spine
Yabo Guan
Department of Neurosurgery, Medical College of Wisconsin, 9200 West Wisconsin Avenue, Milwaukee, WI 53226, USA
Med Biol Eng Comput 44:633-41. 2006
..Validation results for each loading mode and for each motion segment (L4-L5, L5-S1) and bisegment (L4-S1) are presented in the paper...
- A finite element model of region-specific response for mild diffuse brain injury
Ronald J Fijalkowski
Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
Stapp Car Crash J 53:193-213. 2009
..Although not fully conclusive, these results are valuable in the understanding of diffuse brain injury pathologies following rotational loading...
- Automating 3D meshing method for patient-specific modeling
Yabo Guan
Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA
Biomed Sci Instrum 42:199-204. 2006
..Both static and dynamic analyses were performed to verify the models. The study for blunt impact of infant head was performed by using these patient-specific models...
- Lateral impact injuries with side airbag deployments--a descriptive study
Narayan Yoganandan
Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI 53226, USA
Accid Anal Prev 39:22-7. 2007
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- Association of contact loading in diffuse axonal injuries from motor vehicle crashes
Narayan Yoganandan
Department of Neurosurgery, Medical College of Wisconsin, and VA Medical Center, Milwaukee, Wisconsin, USA
J Trauma 66:309-15. 2009
..This study examined the association in occupants sustaining diffuse axonal injuries (DAIs)...
- Temporal cavity and pressure distribution in a brain simulant following ballistic penetration
Jiangyue Zhang
Department of Veterans Affairs Medical Center, Milwaukee, Wisconsin, USA
J Neurotrauma 22:1335-47. 2005
..Pressures reached approximately +2 atmospheric pressure when temporary cavities collapsed. These quantified data may assist in understanding injury biomechanics and management of penetration brain trauma...
- A finite element study of blast traumatic brain injury - biomed 2009
Jiangyue Zhang
Medical College of Wisconsin and VA Medical Center, Milwaukee, WI
Biomed Sci Instrum 45:119-24. 2009
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- How to test brain and brain simulant at ballistic and blast strain rates
Jiangyue Zhang
Department of Neurosurgery, Medical College of Wisconsin, VA Medical Center, Milwaukee, WI, USA
Biomed Sci Instrum 44:129-34. 2008
..This confirmed the applicability of Hopkinson bar for mechanical properties testing of brain tissue in the ballistic and blast domain...
- Force and acceleration corridors from lateral head impact
Narayan Yoganandan
Department of Neurosurgery Medical College of Wisconsin and VA Medical Center, Milwaukee, Wisconsin, USA
Traffic Inj Prev 5:368-73. 2004
..The study underscored the need to enhance the sample size to derive probability-based human tolerance to side impacts...
