scholarly journals An Evaluation of Objective Rating Methods for Full-Body Finite Element Model Comparison to PMHS Tests

2013 ◽  
Vol 14 (sup1) ◽  
pp. S87-S94 ◽  
Author(s):  
Nicholas A. Vavalle ◽  
Benjamin C. Jelen ◽  
Daniel P. Moreno ◽  
Joel D. Stitzel ◽  
F. Scott Gayzik
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Model Comparison ◽  
Element Model ◽  
Objective Rating ◽  
Full Body

A Multi-Modality Image Data Collection Protocol for Full Body Finite Element Model Development

2009 ◽  
Author(s):  
F. Scott Gayzik ◽  
Craig A. Hamilton ◽  
Josh C. Tan ◽  
Craig McNally ◽  
Stefan M. Duma ◽  
...  
Keyword(s):  
Finite Element ◽  
Data Collection ◽  
Finite Element Model ◽  
Model Development ◽  
Image Data ◽  
Element Model ◽  
Full Body

Development and Full Body Validation of a 5th Percentile Female Finite Element Model

2016 ◽  
Author(s):  
Matthew L. Davis ◽  
Bharath Koya ◽  
Jeremy M. Schap ◽  
F. Scott Gayzik
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Full Body

Lateral Impact Validation of a Geometrically Accurate Full Body Finite Element Model for Blunt Injury Prediction

2012 ◽  
Vol 41 (3) ◽  
pp. 497-512 ◽  
Author(s):  
Nicholas A. Vavalle ◽  
Daniel P. Moreno ◽  
Ashley C. Rhyne ◽  
Joel D. Stitzel ◽  
F. Scott Gayzik
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Blunt Injury ◽  
Lateral Impact ◽  
Injury Prediction ◽  
Full Body

The Effect of Impactor Location on the Validation of a Full Body Finite Element Model in Two Loading Cases

2012 ◽  
Author(s):  
Nicholas A. Vavalle ◽  
Daniel P. Moreno ◽  
Joel D. Stitzel ◽  
F. Scott Gayzik
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Complex Loading ◽  
Element Model ◽  
Sensitivity Study ◽  
Oblique Impact ◽  
Lateral Impact ◽  
Element Analysis ◽  
The Right ◽  
Full Body

Finite element analysis (FEA) is a tool used by many in the injury biomechanics field. FEA allows researchers to study the stresses and strains in complex loading scenarios that would be impossible to determine experimentally. A vital step toward ensuring accurate results is validation of the finite element model (FEM), which is often based on matching model results to experimental results. While care is taken in performing experiments, there are still sources of variance in empirical results like experimental error and cadaver variation. In order to mimic these, location variations of two validation cases were studied, an oblique impact to the right thoracoabdominal region and a lateral impact to the right shoulder. Five locations were studied for each case, the nominal and four variations. The object of this study was to determine model robustness, conduct a sensitivity study of the model, and to simulate experimental subject variation without the use of subject-specific models. This study utilizes the Global Human Body Models Consortium (GHBMC) midsized male model. The model reflects a global effort to develop a set of state-of-the-art full body finite element models.

Investigation of the Mass Distribution of a Detailed Seated Male Finite Element Model

2014 ◽  
Vol 30 (3) ◽  
pp. 471-476 ◽  
Author(s):  
Nicholas A. Vavalle ◽  
A. Bradley Thompson ◽  
Ashley R. Hayes ◽  
Daniel P. Moreno ◽  
Joel D. Stitzel ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Mass Distribution ◽  
Soft Tissues ◽  
Element Model ◽  
Body Segment ◽  
Average Deviation ◽  
Bony Landmarks ◽  
Human Body Models ◽  
Full Body

Accurate mass distribution in computational human body models is essential for proper kinematic and kinetic simulations. The purpose of this study was to investigate the mass distribution of a 50th percentile male (M50) full body finite element model (FEM) in the seated position. The FEM was partitioned into 10 segments, using segment planes constructed from bony landmarks per the methods described in previous research studies. Body segment masses and centers of gravity (CGs) of the FEM were compared with values found from these studies, which unlike the present work assumed homogeneous body density. Segment masses compared well to literature while CGs showed an average deviation of 6.0% to 7.0% when normalized by regional characteristic lengths. The discrete mass distribution of the FEM appears to affect the mass and CGs of some segments, particularly those with low-density soft tissues. The locations of the segment CGs are provided in local coordinate systems, thus facilitating comparison with other full body FEMs and human surrogates. The model provides insights into the effects of inhomogeneous mass on the location of body segment CGs.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Sign in / Sign up

Export Citation Format

Share Document