scholarly journals The Vanderbilt Concrete Canoe Design Project: The Little Engine that Canoed

2006 ◽  
Vol 2 ◽  
Author(s):  
Stephen Brian Schmitt
Keyword(s):  
Three Dimensional ◽  
Element Analysis ◽  
Team Members ◽  
Railroad Industry ◽  
School History ◽  
Dimensional Finite Element ◽  
The Face ◽  
Three Dimensional Finite Element ◽  
Project Objectives ◽  
First Time

The Vanderbilt Concrete Canoe (VCC) Team has a competitive history at the Southeastern Regional ASCE Conference, placing in the top five schools throughout the past three years. The most recent concrete canoe project was named The Little Engine That Canoed in 2006 to honor Commodore Cornelius Vanderbilt’s origins in the railroad industry and as a reminder of the power of persistence. Developing The Little Engine was a small portion of the overall project objectives. The design team first compiled a significant body of literature that systematically outlined the steps for a successful concrete canoe project. The Little Engine boasts a fresh hull, three-dimensional finite element analysis, and an optimized concrete composite. The canoe construction efforts yielded a female mold, canoe carrier, and stands. Team members found the process of modeling the V-shaped bow and stern sections and a rounded stern stem to be the most challenging obstacles. Three-dimensional analysis was performed for the first time in school history and provided insight into graduate level coursework. Similarly, designing a concrete composite to withstand the rigors of competition required the use of a polymer to replace water in the concrete mix. To reach new heights, the team utilized a functional breakdown structure. Teamwork and communication, in the face of limited manpower, resulted in performing over 800 man-hours of concrete canoe related activities during a two-year period.

scholarly journals Internet-based Distributed Collaborative Engineering Analysis

2002 ◽  
Vol 10 (4) ◽  
pp. 341-348 ◽  
Author(s):  
Qiuli Sun ◽  
Kurt Gramoll
Keyword(s):  
Geometric Modeling ◽  
Geometric Model ◽  
Three Dimensional ◽  
Shared Environment ◽  
Engineering Analysis ◽  
Element Analysis ◽  
Team Members ◽  
Dimensional Finite Element ◽  
Actual Design ◽  
Three Dimensional Finite Element

This paper proposes an engineering analysis environment that allows remote users to conduct three-dimensional finite element analysis collaboratively through the Internet. Java and Java 3D were chosen to develop the working prototype due to their advantages of platform-independence and network supporting. The environment allows remote users to work collaboratively on the same analysis object simultaneously. It reads the geometric data generated by the collaborative geometric modeling environment. The user can interact directly with the geometric model to perform operations, such as applying, editing, and deleting boundary conditions and forces. The operations are propagated among the team members, which creates a distributed shared environment. The commands are transmitted instead of the generated data, and thus the network traffic associated with the collaboration is minimized. Different from classical server/client models,# the environment adopts a strategy in which the client-side application has full analysis capabilities while the server only manages communication. The essential features for distributed collaboration are discussed. The actual design consideration of the working prototype is presented to help illustrate the complexity and development of the collaborative environment. The environment is open to the public at www.vcity.ou.edu.

Finite Element Analysis of Nonuniformity of Tires with Imperfections5

2007 ◽  
Vol 35 (3) ◽  
pp. 226-238 ◽  
Author(s):  
K. M. Jeong ◽  
K. W. Kim ◽  
H. G. Beom ◽  
J. U. Park
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Radial Force ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Dimensional Finite Element ◽  
Force Variation ◽  
Three Dimensional Finite Element

Abstract The effects of variations in stiffness and geometry on the nonuniformity of tires are investigated by using the finite element analysis. In order to evaluate tire uniformity, a three-dimensional finite element model of the tire with imperfections is developed. This paper considers how imperfections, such as variations in stiffness or geometry and run-out, contribute to detrimental effects on tire nonuniformity. It is found that the radial force variation of a tire with imperfections depends strongly on the geometrical variations of the tire.

scholarly journals Three-Dimensional Finite Element Analysis of Stress Distribution in a Tooth Restored with Full Coverage Machined Polymer Crown

2021 ◽  
Vol 11 (3) ◽  
pp. 1220
Author(s):  
Azeem Ul Yaqin Syed ◽  
Dinesh Rokaya ◽  
Shirin Shahrbaf ◽  
Nicolas Martin
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Distribution ◽  
Three Dimensional ◽  
Intraoral Scanner ◽  
Element Analysis ◽  
Dental Ceramic ◽  
Dimensional Finite Element ◽  
Three Dimensional Finite Element ◽  
Ceramic Crown

The effect of a restored machined hybrid dental ceramic crown–tooth complex is not well understood. This study was conducted to determine the effect of the stress state of the machined hybrid dental ceramic crown using three-dimensional finite element analysis. Human premolars were prepared to receive full coverage crowns and restored with machined hybrid dental ceramic crowns using the resin cement. Then, the teeth were digitized using micro-computed tomography and the teeth were scanned with an optical intraoral scanner using an intraoral scanner. Three-dimensional digital models were generated using an interactive image processing software for the restored tooth complex. The generated models were imported into a finite element analysis software with all degrees of freedom concentrated on the outer surface of the root of the crown–tooth complex. To simulate average occlusal load subjected on a premolar a total load of 300 N was applied, 150 N at a buccal incline of the palatal cusp, and palatal incline of the buccal cusp. The von Mises stresses were calculated for the crown–tooth complex under simulated load application was determined. Three-dimensional finite element analysis showed that the stress distribution was more in the dentine and least in the cement. For the cement layer, the stresses were more concentrated on the buccal cusp tip. In dentine, stress was more on the cusp tips and coronal 1/3 of the root surface. The conventional crown preparation is a suitable option for machined polymer crowns with less stress distribution within the crown–tooth complex and can be a good aesthetic replacement in the posterior region. Enamic crowns are a good viable option in the posterior region.

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