Development of a Finite Element Model of the Human Shoulder and Analyses of Injury Mechanism in Side Impact

2000 ◽  
Vol 2000.13 (0) ◽  
pp. 223-224
Author(s):  
Masami IWAMOTO ◽  
Kazuo MIKI ◽  
King H. Yang ◽  
Albert I. King
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Injury Mechanism ◽  
Side Impact

Development of a Finite Element Model of the Human Shoulder

1999 ◽  
Author(s):  
Masami Iwamoto ◽  
Kazuo Miki ◽  
Babushankar Sambamoorthy ◽  
King H. Yang ◽  
Albert I. King
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Numerical Models ◽  
Element Model ◽  
Injury Mechanism ◽  
Side Impact ◽  
Human Anatomy ◽  
Lateral Impact ◽  
Crash Dummies ◽  
The Impact

Abstract During an automotive side impact, the shoulder is likely to be the first body part that is directly impacted either by the internal structures of the vehicle or by the side airbag. Therefore, a good understanding of the injury mechanism and the kinematics of the shoulder is critical for occupant protection in side impact. Existing side impact crash dummies do not have structures that are capable of reproducing the kinematics and kinetics of a human occupant. Over the past several years, many numerical models have been developed from head to foot in an attempt to overcome the shortcomings of these crash dummies. However, relatively few attempts have been made to include the shoulder. The purpose of this study is to develop a finite element model of the human shoulder in order to achieve a deeper understanding of the injury mechanism and the kinematics of the shoulder in side impacts. Basic anthropometric data used to develop the skeletal portion of the shoulder model were taken from a commercial data package of the human shoulder geometry (Viewpoint Datalabs). This geometry was scaled to fit a 50th percentile male occupant according to the data reported by Schneider et al. (1983). The shoulder model included the three bones of the shoulder, namely the humerus, scapula and clavicle. Each bone was modeled in two parts. The spongy bone was modeled using crushable solids and the cortical bone was modeled using damageable shell elements. The model also includes major ligaments, which form the acromioclavicular and sternoclavicular articulations. The deltoid muscle, which was modeled by crushable solids in order to absorb part of the impact energy, was added to this model for lateral impact simulations. This shoulder model was then integrated with a human thorax model developed by Wang (1995), along with other preexisting models of other parts of the human anatomy. Material properties for the model were taken from the literature. Experimental data obtained from lateral impact sled tests of 17 cadavers conducted at Wayne State University were used to validate the model. Impact forces in four regions, specifically, the shoulder, thorax, abdomen and pelvis, were calculated by the model and were compared with forces obtained experimentally from rigid wall impacts at 6.7m/s and padded wall impacts at 8.9m/s.

Establishment Method of the Simplified Model for Research on the Crashworthiness of B-Pillar in Side Impact

2014 ◽  
Vol 635-637 ◽  
pp. 502-506 ◽  
Author(s):  
Wei Min Zhuang ◽  
Qin Hua Xu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
High Accuracy ◽  
Side Impact ◽  
Simplified Model ◽  
Body Parts ◽  
Establishment Method ◽  
Short Time ◽  
The Relationship

In order to improve the efficiency of the calculation of the whole car side impact finite element model,simplified model often used in research of B-pillar in passenger car. It is critical to establish a high accuracy simplified model in a short time. The relationship between the energy absorption of body parts and the calculation accuracy of simplified model was analyzed,and the result can be used as a guide for the establishment of simplified model.

Study of Aortic Ruptures Using a Finite Element Model

2000 ◽  
Author(s):  
Ning Zhang ◽  
King H. Yang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Aortic Arch ◽  
Biaxial Tension ◽  
Aortic Rupture ◽  
Three Dimensional ◽  
Element Model ◽  
Side Impact ◽  
Aortic Isthmus ◽  
Human Thorax

Abstract A three-dimensional finite element model of the human thorax has been developed to study the mechanism of aortic rupture due to blunt impacts. The model has been validated against data from pendulum tests in both frontal and lateral directions. Effective stresses of the aortic inner wall were predicted in four different regions that are most likely to rupture. The aortic isthmus, clinically the most frequently ruptured site, was found to have the highest magnitude of stress among four locations in both frontal and side impact simulations. It is hypothesized that bending of the aortic arch posteriorly and stretching of the aortic arch laterally lead to biaxial tension at the aortic isthmus during blunt impact, which may help to explain the mechanism of injury in aortic ruptures.

Development of a New Finite Element Model in Abaqus for the WorldSID 50th Percentile Male Side Impact Dummy

2011 ◽  
Author(s):  
George Scarlat ◽  
Sridhar Sankar ◽  
Victor Oancea ◽  
Bill Grimes
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Experimental Tests ◽  
Element Model ◽  
Development Project ◽  
Side Impact ◽  
Design Data ◽  
Male Side ◽  
Wide Range ◽  
Physical Testing

This paper describes the modeling and validation of the new WorldSID 50th percentile male dummy (WorldSID50) model for the Abaqus finite element (FE) software suite [1]. The Abaqus WorldSID50 model has been developed by Dassault Syste`mes Simulia Corp. in cooperation with the Partnership for Dummy Technology and Biomechanics (PDB), a consortium that includes the following German automobile manufacturers: Audi, BMW, Daimler, Porsche, and Volkswagen. The objective of the dummy development project was to develop a robust virtual dummy model that closely mimics the behavior of the hardware dummy in order to minimize the need for physical testing during vehicle design. Data obtained through extensive experimental tests performed at all levels of the dummy assembly — material coupon, component, sub-assembly, and full dummy — were used to calibrate and validate the finite element model. The Abaqus WorldSID50 model results show good correlation with the hardware dummy output signals for a wide range of tests. The Abaqus WorldSID50 model was approved for use in production by the PDB.

scholarly journals Vehicle Side Crash Safety Research based on Dynamics Modeling and Analysis

2014 ◽  
Vol 8 (1) ◽  
pp. 765-769
Author(s):  
Yao-Jun Zheng
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Simulation Analysis ◽  
Element Model ◽  
Side Impact ◽  
Dynamics Modeling ◽  
Explicit Finite Element ◽  
Crash Safety ◽  
Safety Research ◽  
Side Crash

The safety of vehicle side impact has become an important research content in the field of automotive passive safety. The nonlinear dynamic explicit finite element method is used to establish the side crashworthiness model of vehicle and side crash finite element model validation is also given. The finite element model is consistent with vehicle side stiffness, which can be used in the side crash simulation analysis. The simulation calculation and result analysis of side crash are carried out for a particular vehicle model to improve the side crash safety performance.

A 3D Finite Element Model of Pelvis in Side Impact

1993 ◽  
Author(s):  
F. Renaudin ◽  
H. Guillemot ◽  
F. Lavaste ◽  
W. Skalli ◽  
F. Lesage ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Side Impact ◽  
3D Finite Element ◽  
3D Finite Element Model
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