Finite element modeling and analysis of piezo-integrated composite structures under large applied electric fields

2016 ◽  
Vol 25 (5) ◽  
pp. 055044 ◽  
Author(s):  
M N Rao ◽  
S Tarun ◽  
R Schmidt ◽  
K-U Schröder
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Electric Fields ◽  
Composite Structures ◽  
Modeling And Analysis ◽  
Element Modeling

A Meta-Object Based Approach to Finite Element Modeling

2001 ◽  
Author(s):  
Santosh Shanbhag ◽  
Ian R. Grosse ◽  
Jack C. Wileden ◽  
Alan Kaplan
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Production Model ◽  
Engineering Analysis ◽  
Demand Model ◽  
Element Analysis ◽  
Modeling And Analysis ◽  
Element Modeling ◽  
Molded Part ◽  
Analysis Models

Abstract With the integration of CAD and FEA software packages, design engineers who are not skilled in finite element analysis are performing finite element modeling and analysis. Furthermore, in the analysis of a system, engineers often make numerous modeling simplifications and analysis assumptions depending on the trade-off between cost, accuracy, precision or other engineering analysis objectives. Thus, reusability or interoperability of engineering analysis models is difficult and often impractical due to the wealth of knowledge involved in the creation of such models and the lack of formal methods to codify and explicitly represent this critical modeling knowledge. Most institutions and organizations have started documenting these simplifications and assumptions, making them understandable for the other engineers within the organization. However, this does not allow a seamless exchange of data or interoperability with other analysis models of similar or dissimilar nature. This plays a very important role in today’s market, which is moving away from the traditional make-to-stock production model to a build-to-demand model. We address these issues in this paper by adopting and extending the computer science concept of meta-object, and applying it in novel ways to the domain of FEA and the representation of finite element modeling knowledge. We present a taxonomy for engineering models that aids in the definition of the various object analysis classes. A simple beam analysis example, followed by a more realistic injection-molded part example. The latter example involves injection-mold filling simulation, thermal cooling, and part ejection analyses which are subclasses for a generic manufacturing analysis meta-object class. Prototype implementations of automated support for this meta-object approach to finite element modeling is in progress.

Finite Element Modeling and Analysis of Human Pelvis

2007 ◽  
Author(s):  
A. Ivanov ◽  
A. Kiapour ◽  
N. Ebraheim ◽  
V. K. Goel
Keyword(s):  
Finite Element ◽  
Individual Differences ◽  
Finite Element Modeling ◽  
Complex Geometry ◽  
Biomechanical Properties ◽  
Component Structure ◽  
Modeling And Analysis ◽  
Element Modeling ◽  
Biomechanical Behavior

The pelvis is a multi-component structure with complex geometry and biomechanical properties. Complex geometry, individual differences between subcomponents and aging create difficulties in analyzing the biomechanical behavior of the pelvis.

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