Finite element implementation of large deformation micropolar plasticity exhibiting isotropic and kinematic hardening effects

2005 ◽  
Vol 62 (12) ◽  
pp. 1691-1720 ◽  
Author(s):  
P. Grammenoudis ◽  
Ch. Tsakmakis
Keyword(s):  
Finite Element ◽  
Large Deformation ◽  
Kinematic Hardening ◽  
Finite Element Implementation ◽  
Micropolar Plasticity

A Finite Element Method for Dielectric Elastomers Affected by Viscoelasticity and Current Leakage

2018 ◽  
Vol 10 (09) ◽  
pp. 1850102 ◽  
Author(s):  
Choon Chiang Foo ◽  
Jun Liu ◽  
Zhi-Qian Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Large Deformation ◽  
Constitutive Theory ◽  
Dielectric Elastomers ◽  
Simulation Platform ◽  
Current Leakage ◽  
Dissipative Processes ◽  
Finite Element Implementation ◽  
Electromechanical Performance

Dissipative processes such as viscoelasticity and current leakage are known to affect the electromechanical performance of dielectric elastomers. In this work, we describe a constitutive theory that couples electrostatics, large deformation, viscoelasticity and current leakage. We also implement this model in a commercial finite element solver ABAQUS by developing new user-defined elements. The method is used to study the effect of viscoelasticity and current leakage on the behavior of dielectric elastomers. Our finite element implementation will serve as a simulation platform to guide the design of practical dielectric elastomer transducers.

scholarly journals Theoretic Framework and Finite Element Implementation on Progressive Collapse Simulation of Masonry Arch Bridge

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Weibing Peng ◽  
Ruodan Pan ◽  
Fei Dai
Keyword(s):  
Finite Element ◽  
Large Deformation ◽  
Progressive Collapse ◽  
Feature Model ◽  
Masonry Arch ◽  
Arch Bridge ◽  
Finite Element Implementation ◽  
Collapse Simulation ◽  
Masonry Arch Bridge ◽  
Collapse Process

The capacity that computer can solve more complex design problem is gradually increased. Progressive collapse simulation of masonry arch bridge needs a breakthrough in the current development limitations and then becomes more accurate and integrated. This paper proposes a theoretic framework and finite element implementation on progressive collapse simulation of masonry arch bridge. It is intended to develop a new large deformation element in OpenSees, which can be used for analyzing the collapse process of masonry arch bridge. A mathematical method for large deformation element is put forward by large deformation element. The feature model for bridge structure allows families of bridge components to be specified using constraints on geometry and topology. Geometric constraints are established in bridge components by feature dependence graph in the feature model for bridge. A bridge collapse simulation software system was developed according to such combined technologies. Results from our implementation show that the method can help to simulate the progressive collapse process of masonry arch bridge.

TWO-DIMENSIONAL LARGE DEFORMATION FINITE ELEMENT MODELLING OF SENSITIVE CLAY LANDSLIDES

2020 ◽  
Author(s):  
Bipul Hawlader ◽  
◽  
Chen Wang ◽  
Ripon Karmaker ◽  
Didier Perret ◽  
...  
Keyword(s):  
Finite Element ◽  
Large Deformation ◽  
Finite Element Modelling ◽  
Two Dimensional ◽  
Element Modelling ◽  
Sensitive Clay
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