Finite Element Model of Granite Ablation with UV Laser

2012 ◽  
Vol 730-732 ◽  
pp. 519-524
Author(s):  
Emilio Saavedra ◽  
Ana J. López ◽  
Javier Lamas ◽  
Maria Paula Fiorucci ◽  
Alberto Ramil ◽  
...  
Keyword(s):  
Finite Element ◽  
Laser Ablation ◽  
Finite Element Model ◽  
Element Model ◽  
Uv Laser ◽  
Stone Surface ◽  
Ablation Process ◽  
Laser Ablation Process ◽  
Cleaning Treatment ◽  
Molten Region

This work presents 3-D Finite Element Model of the heat transfer inside granite during pulsed laser ablation with the aim of achieving laser cleaning treatment without damaging the stone surface. The model is focused on biotite, the most affected granite-forming mineral, owing to its low melting temperature. The model predicts sizes of the molten region that are consistent with experimental results. Moreover, the effects of different irradiation parameters; i.e., fluence, laser repetition frequency, and speed of scan have been investigated through the size of the biotite molten region. This model may be considered as the first stage of a comprehensive model of the laser ablation process in granite.

Finite element analysis of the initial stages of the laser ablation process

2004 ◽  
Vol 453-454 ◽  
pp. 323-327 ◽  
Author(s):  
J.C Conde ◽  
F Lusquiños ◽  
P González ◽  
J Serra ◽  
B León ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Laser Ablation ◽  
Ablation Process ◽  
Element Analysis ◽  
Laser Ablation Process

A finite element model to predict the ablation depth in pulsed laser ablation

2010 ◽  
Vol 519 (4) ◽  
pp. 1421-1430 ◽  
Author(s):  
Nikhil A. Vasantgadkar ◽  
Upendra V. Bhandarkar ◽  
Suhas S. Joshi
Keyword(s):  
Finite Element ◽  
Laser Ablation ◽  
Finite Element Model ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Element Model ◽  
Ablation Depth

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.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

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