Coseismic Stress and Strain Field Changes Investigation Through 3-D Finite Element Modeling of DInSAR and GPS Measurements and Geological/Seismological Data: The L'Aquila (Italy) 2009 Earthquake Case Study

2018 ◽  
Vol 123 (5) ◽  
pp. 4193-4222 ◽  
Author(s):  
R. Castaldo ◽  
R. de Nardis ◽  
V. DeNovellis ◽  
F. Ferrarini ◽  
R. Lanari ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Strain Field ◽  
Stress And Strain ◽  
Gps Measurements ◽  
Element Modeling ◽  
Seismological Data

The Optimization of the Structure of Bulk Chemical Hull Based on MSC.Patran/Nastran

2011 ◽  
Vol 105-107 ◽  
pp. 880-885
Author(s):  
Hao Wei Wu ◽  
Yong Jie Pang ◽  
Ye Li
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Transverse Section ◽  
Final Conclusion ◽  
Stress And Strain ◽  
Element Modeling ◽  
New Concepts ◽  
Bulk Chemical ◽  
New Type

The optimization of the structure of bulk chemical hull (BCH) is derived by the finite element modeling (FEM) which is obtained by Patran and Nastran. In this paper, first of all, a new type of ship, BCH, is introduced. Then, the optimal scenario in theory is indicated by researching the transverse section of cargo holds of an ordinary BCH. And the FEM of the cargo holds of this ship is analysed, including the modeling, the load and the figures of stress and strain. The final conclusion would be obtained by comparing of the results which could verify the assumption forenamed. The simplification of the design is contributed by the new concepts and powerful capabilities of modeling of Patran and Nastran which improved the efficiency of ship designers.

Dynamic Modeling and Durability Analysis from the Ground Up

2003 ◽  
Vol 46 (1) ◽  
pp. 128-134 ◽  
Author(s):  
Thomas Stadterman ◽  
William (Skip) Connon ◽  
Kyung Choi ◽  
Jeffrey Freeman ◽  
Alan Peltz
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Dynamic Modeling ◽  
Dynamic Stress ◽  
Stress And Strain ◽  
Integrated Process ◽  
Mechanical Reliability ◽  
Us Army ◽  
Element Modeling ◽  
Durability Analysis

Vehicle manufacturers currently use dynamic modeling, finite element modeling, and durability analysis to incorporate reliability into their designs. Although these models are often used separately, there has been little effort toward integrating these analyses and performing an analysis from the "ground up" (i.e., using terrain data to determine dynamic stress and strain). This paper outlines the approach of an ongoing analysis of a US Army trailer, using an integrated process of dynamic modeling, finite element modeling, and durability analysis. This project outlines an approach to mechanical reliability analysis that can be used early in design.

Reconditioning by Metal Deposition Technology - Temperature Finite Element Modeling

2014 ◽  
Vol 1029 ◽  
pp. 130-133 ◽  
Author(s):  
Dan Florin Nitoi ◽  
Gabriel Marius Dumitru ◽  
Bogdan Dumitru ◽  
Alexandru Mihailescu ◽  
Suzana Carmen Cismas
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Working Condition ◽  
Metal Deposition ◽  
Strain Gauges ◽  
Stress And Strain ◽  
Initial Condition ◽  
Output Data ◽  
Element Modeling ◽  
Deposition Technology

Paper presents the finite element modeling for the stress and temperature as a result of the metal deposition technology. In this case, this research method is the only one that offers information because of the working condition that are total unfavourable for stress and strain gauges. By selecting the most appropriate initial condition, the output data are very close to real result. In the paper, the temperature behavior is model because its influence in structural transformation and the stress because it can cause problems in the situation of an incorrect working technology.

Applications and limitations of finite element modeling to glaciers: A case study

1985 ◽  
Vol 90 (B13) ◽  
pp. 11303 ◽  
Author(s):  
W. A. Nixon ◽  
J. A. Dowdeswell ◽  
A. P. R. Cooper ◽  
D. J. Drewry ◽  
L. G. Watts ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Element Modeling

A Parameterization Approach for Compliance Analysis and Synthesis of Flexure Mechanisms

2014 ◽  
Author(s):  
M. Jia ◽  
R. P. Jia ◽  
J. J. Yu
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Degree Of Freedom ◽  
Analytical Models ◽  
Type Synthesis ◽  
Geometric Properties ◽  
Element Modeling ◽  
Analysis And Synthesis ◽  
Serial Chains

This paper presents an approach based on parameterized compliance for type synthesis of flexure mechanisms with serial, parallel, or hybrid topologies. The parameterized compliance matrixes have been derived for commonly used flexure elements which are significantly influenced by flexure parameters including material and geometric properties. Different parameters of flexure elements generate different degree of freedom (DOF) characteristic of types. Enlightened by the compliance analysis of flexure elements, a parameterization approach with detailed processes and steps is introduced in this paper to help analyze and synthesize flexure mechanisms in the case study as serial chains, parallel chains, and combination hybrid chains. For a hybrid flexure, finite element modeling simulations results are compared to analytical compliance elements characters. Within linear deformations, the maximum compliance errors of analytical models are less than 6% compared with FE models. The final goal of this work is to provide a parameterized approach for type synthesis of flexure mechanisms that can be used to configure and change the parameters of flexure mechanisms to achieve desired DOF requirements of types initially.

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