Finite Element Based Dimension Deformation Predication and Anti-deformation Compensation Model for Composite Part

2010 ◽  
Author(s):  
Xiaojing Chen ◽  
Laishui Zhou ◽  
Guidong Li
Keyword(s):  
Finite Element ◽  
Composite Part ◽  
Compensation Model ◽  
Deformation Compensation

Finite Element Modeling of Steel Pipeline Reconstruction Using Fiberglass Composite Material

2015 ◽  
Vol 725-726 ◽  
pp. 648-653 ◽  
Author(s):  
Ekaterina A. Nekliudova ◽  
Artem S. Semenov ◽  
S.G. Semenov ◽  
Boris E. Melnikov
Keyword(s):  
Finite Element ◽  
Composite Material ◽  
Stress State ◽  
Elastic Moduli ◽  
Strength Properties ◽  
Geometrical Parameters ◽  
Effective Elastic Moduli ◽  
Composite Part ◽  
Steel Pipeline ◽  
Fiberglass Composite

A stress state of the partially damaged underground steel pipeline after reconstruction by means of the fiberglass composite material is considered. The strength properties of the composite are determined experimentally. The effective elastic moduli of the composite are determined by means of the finite element homogenization. Tsai-Wu failure criterion is used for the composite part of the pipeline. The influence of geometrical parameters and loading conditions on the safety factor of the pipeline is analyzed and discussed.

A Method for Bouncing Compensation of Pre-Tensioned Frame in AGC Control System of Hydraulic Leveler

2011 ◽  
Vol 474-476 ◽  
pp. 1720-1724
Author(s):  
Ying Hu ◽  
Xiao Hong Hao ◽  
Qing Xue Huang ◽  
Qiu Shu Wang
Keyword(s):  
Finite Element ◽  
Control System ◽  
Stress Distribution ◽  
Compensation Model ◽  
Finite Element Software ◽  
System Requirements ◽  
Frame Stiffness

For the frame characteristics of leveler and the leveler AGC control system requirements, this paper analyzed the structure of the frame. And using the finite element software ANSYS analyzed the stress distribution and deformation of leveler prestressedstand. Thus we can obtain the frame stiffness in different preload coefficient, and establish the corresponding AGC compensation model. All of this, the leveler control system can provide the precise compensation for frame bounce. Because of this, it improved the straightening precision, and achieved the lean straightening. Meanwhile, it can provide the feedback guarantee for the accurate correction of leveler model.

Development of an optimized thermal cure cycle for a complex-shape composite part using a coupled finite element/genetic algorithm technique

2015 ◽  
Vol 24 (6) ◽  
pp. 459-469 ◽  
Author(s):  
Mehdy Vafayan ◽  
Mir Hamid Reza Ghoreishy ◽  
Hossein Abedini ◽  
Mohammad Hossein Beheshty
Keyword(s):  
Genetic Algorithm ◽  
Finite Element ◽  
Complex Shape ◽  
Thermal Cure ◽  
Composite Part ◽  
Cure Cycle

Development of an actuated corrugated laminate for morphing structures

2020 ◽  
Vol 125 (1283) ◽  
pp. 180-204
Author(s):  
A. Airoldi ◽  
D. Rigamonti ◽  
G. Sala ◽  
P. Bettini ◽  
E. Villa ◽  
...  
Keyword(s):  
Finite Element ◽  
Shape Memory Alloy ◽  
System Performance ◽  
Strength Properties ◽  
Finite Element Analyses ◽  
Composite Part ◽  
Experimental Assessment ◽  
Sma Actuators ◽  
Actuation System ◽  
Numerical Approaches

ABSTRACTThis paper presents the design, manufacturing and experimental assessment of a morphing element consisting of a composite corrugated panel that hosts a diffused actuation system based on Shape Memory Alloy (SMA) actuators. The characterisation of the SMA actuators is reported and the system performance is predicted through an analytical model and finite element analyses. Two versions of the actuated system are proposed, with different methods for the physical integration of the SMA wires into the composite part. Manufacturing and testing of specimens with different wire densities are reported. Correlation with experiments validates the analytical and numerical approaches adopted for the design and analyses. The results confirm the potential of the concept proposed for developing corrugated panels that can be contracted in a predefined direction by a load-bearing actuation system, but still retain high stiffness and strength properties in other directions.

Residual Stresses in SCS-6/Ti-24Al-11Nb Composite: Part II—Finite Element Modeling

1994 ◽  
Vol 16 (1) ◽  
pp. 54 ◽  
Author(s):  
WS Johnson ◽  
JE Masters ◽  
TK O'Brien ◽  
P Rangaswamy ◽  
N Jayaraman
Keyword(s):  
Finite Element ◽  
Residual Stresses ◽  
Finite Element Modeling ◽  
Composite Part ◽  
Element Modeling

scholarly journals Draping modelization of stitched composite reinforcements

2021 ◽  
Author(s):  
Jin Huang ◽  
Nahiène Hamila ◽  
Philippe Boisse
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Three Dimensional ◽  
Element Model ◽  
Good Prediction ◽  
Composite Part ◽  
Shell Elements ◽  
Contact Algorithm ◽  
Specific Contact ◽  
Macroscopic Approach

In the aeronautic industry, thicker and more complex composite parts are required. Multi-layered reinforcements are widely used to achieve a certain thickness for the composite part. The tufting technology has become one of the most effective three-dimensional (3D) reinforcement technologies to improve the through-the-thickness mechanical properties of multi-layered reinforcements. A finite element model is proposed for the simulation of tufted reinforcements preforming. The textile reinforcement is modelled by shell elements, and the tufting thread is modelled by bar elements. A specific contact algorithm is developed to manage the interaction between reinforcements and tufting threads. This meso-macroscopic approach reduces the number of finite elements and saves calculation time compared to a mesoscopic model. The model shows a good prediction of deformations during the forming on a hemispherical shape.

scholarly journals Volumetric Intraoperative Brain Deformation Compensation: Model Development and Phantom Validation

2012 ◽  
Vol 31 (8) ◽  
pp. 1607-1619 ◽  
Author(s):  
Christine DeLorenzo ◽  
Xenophon Papademetris ◽  
Lawrence H. Staib ◽  
Kenneth P. Vives ◽  
Dennis D. Spencer ◽  
...  
Keyword(s):  
Model Development ◽  
Compensation Model ◽  
Brain Deformation ◽  
Deformation Compensation ◽  
Phantom Validation

Iterative Algorithm for Establishing the Optimal Compensation Model of Blade Cutting Path Based on Finite Element Analysis

2014 ◽  
Vol 556-562 ◽  
pp. 6085-6088
Author(s):  
Yan Cao ◽  
Li Wei Jia ◽  
Hui Yao ◽  
Zhi Jie Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cutting Force ◽  
Iterative Algorithm ◽  
Machining Process ◽  
Machining Error ◽  
Element Analysis ◽  
Compensation Model ◽  
Blade Machining ◽  
Cutting Path

Blade deformation during its machining is a key problem in aviation manufacturing. Machining error of a low rigidity blade caused by cutting force reduces its processing precision. And this kind of error is difficult to predict and control. In the paper, Finite Element Analysis is used to simulate blade machining process. The errors at sample points are gotten and used to evaluate the change of tool path. An optimal compensation model of blade machining path is put forward to consider the coupling effect between blade deformation and cutting force in multiple feeds. And an iterative algorithm is also presented to solve the optimal model. Thus, the object is achieved to reduce the blade machining error to a satisfying extent.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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