Evaluation of the capability of the simulated dual energy X-ray absorptiometry-based two-dimensional finite element models for predicting vertebral failure loads

In order to study the effects of liner materials on the formation of Shaped Charges with Double Layer Liners (SCDLL) into tandem Explosively Formed Projectile (EFP), the formation mechanism of DLSCL was studied. Utilizing two-dimensional finite element dynamic code AUTODYN, the numerical simulations on the mechanical phenomenon of SCDLL forming into tandem EFP were carried out. X-ray pictures were obtained after Experiments on SCDLL. Comparisons between experimental results and numerical simulation results have good agreement. It can be concluded from the results that the materials properties and configurations of both liners are crucial to the formation of tandem EFP.

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Minimization of X-Ray Mask Distortion by Two-Dimensional Finite Element Method Simulation

Japanese Journal of Applied Physics ◽

10.1143/jjap.29.2203 ◽

1990 ◽

Vol 29 (Part 1, No. 10) ◽

pp. 2203-2206 ◽

Cited By ~ 2

Author(s):

Akihiko Kishimoto ◽

Shinji Kuniyoshi ◽

Naoto Saito ◽

Takashi Soga ◽

Kozo Mochiji ◽

...

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Finite Element Method Simulation ◽

Two Dimensional ◽

X Ray ◽

Dimensional Finite Element ◽

Element Method

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Two-dimensional finite element models of the variation of heat flow with depth caused by refraction at a low conductivity graben

Open-File Report ◽

10.3133/ofr87618 ◽

1987 ◽

Cited By ~ 2

Author(s):

R.W. Saltus ◽

A.H. Lachenbruch

Keyword(s):

Finite Element ◽

Heat Flow ◽

Finite Element Models ◽

Two Dimensional ◽

Dimensional Finite Element

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Two Dimensional Finite Element Modeling to Identify Physiological Bases for Tactile Gap Discrimination

Proceedings of the Human Factors and Ergonomics Society Annual Meeting ◽

10.1177/154193120504901004 ◽

2005 ◽

Vol 49 (10) ◽

pp. 891-895

Author(s):

Gregory J. Gerling ◽

Geb W. Thomas

Keyword(s):

Finite Element ◽

Solid Mechanics ◽

Finite Element Models ◽

Type I ◽

Gap Detection ◽

Two Dimensional ◽

Neural Signals ◽

Axis Parallel ◽

Dimensional Finite Element ◽

Manual Tasks

Tactile edge and gap detection are fundamental to performing manual tasks. Because slowly adapting type I (SA-I) mechanoreceptors encode details pertinent to edge localization, understanding low-level encoding is critical to understanding edge perception. Solid mechanics models may help us understand how mechanoreceptors in the skin encode applied surface indentation into neural signals representing edges. Finite element models test whether an indenter separated by a gap creates unique stress/strain distributions in models based upon orientation to fingerprint lines. Results indicate that a gap axis parallel to ridge lines elicits a more pronounced signal than a gap axis perpendicular to ridge lines. The differences may be due to underlying intermediate ridge microstructure. The percentage differences for three derived stress metrics range from 30-87% greater when the indenter's gap axis parallels the ridges. This initial effort demonstrates that underlying skin microstructure may aid tactile perception of stimulus orientation.

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