scholarly journals Metal inclusion influence on mechanical behaviour of plates made of araldite

2020 ◽  
Vol 2 (2) ◽  
pp. 9-19
Author(s):  
Sorin Draghici ◽  
Horia Alexandru Petrescu ◽  
Gabriel Jiga ◽  
Sebastian Vintilă ◽  
Anton Hadar
Keyword(s):  
Finite Element ◽  
Composite Material ◽  
Numerical Analysis ◽  
Mechanical Behavior ◽  
Mechanical Behaviour ◽  
Experimental Analysis ◽  
Material Defects ◽  
Metal Inclusion ◽  
Analysis Process ◽  
Metallic Inclusions

Due to the need for creating new, more efficient, materials for use in structures manufacturing, a high interest issue for researchers and engineers is to analyze the plastic or composite material defects and their influence over the mechanical behavior of the structures. Presented in this paper are the results of experimental analysis and its validation, made by finite element numerical analysis. The first part of the analysis process consisted in obtaining the reference values from plastic plates containing no metallic inclusions, which were analyzes both experimentally and numerically, by subjecting them to a flexural load. A numerical validation of the experimental model was obtained. Next, same kind of numerical and experimental analyses were performed, but this time plastic plates containing metallic inclusions were subjected to the same loads as before. In doing so, the study revealed the local and global influences of inclusions over the mechanical behavior of plastic plates.  

Investigation of API 8 Round Casing Connection Performance—Part I: Introduction and Method of Analysis

1984 ◽  
Vol 106 (1) ◽  
pp. 130-136 ◽  
Author(s):  
W. T. Asbill ◽  
P. D. Pattillo ◽  
W. M. Rogers
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Internal Pressure ◽  
Mechanical Behavior ◽  
Experimental Analysis ◽  
Strain Gages ◽  
The Finite Element Method ◽  
Strength Of Materials ◽  
Methods Of Analysis ◽  
Element Method

The purpose of this investigation was to gain a better understanding into the mechanical behavior of the API 8 Round casing connection, when subjected to service loads of assembly interference, tension and internal pressure. The connection must provide both structural and sealing functions and these functions were evaluated by several methods. Part I discusses the methods of analysis, which include hand calculations using strength of materials, finite element method via unthreaded and threaded models, and experimental analysis using strain gages. Comparisons of all three methods are made for stresses and show that the finite element method accurately models connection behavior.

Numerical analysis of the mechanical behavior of a ring-spinning triangle using the Finite Element Method

2011 ◽  
Vol 81 (9) ◽  
pp. 959-971 ◽  
Author(s):  
Sheng Yan Li ◽  
Bin Gang Xu ◽  
Xiao Ming Tao ◽  
Jie Feng
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Analysis ◽  
Mechanical Behavior ◽  
The Finite Element Method ◽  
Ring Spinning ◽  
Spinning Triangle ◽  
Element Method

2D Meso-Scale Finite Element Modeling and Simulation of Polymer-Mineral Composite Material

2016 ◽  
Vol 848 ◽  
pp. 3-8
Author(s):  
Pei Yao Sheng ◽  
Shi Zhao Wang ◽  
Zhong Ji
Keyword(s):  
Finite Element ◽  
Composite Material ◽  
Numerical Analysis ◽  
Finite Element Modeling ◽  
Epoxy Resin ◽  
Element Model ◽  
Fe Model ◽  
Element Modeling ◽  
Low Thermal Expansion ◽  
Meso Scale

Polymer-mineral composite material is prepared by using modified epoxy resin as binder and mineral particles as aggregates. Its excellent damping characteristic and low thermal expansion make it ideal in manufacturing machine tool beds. However, the properties of this material depend on its formula and structure, so it is very important to develop an efficient method to numerically model the materials and then to optimize their properties. In this paper, 2D meso-scale finite element modeling is presented for numerical analysis of the mechanical properties of polymer-mineral composite material. The material was treated as a 2-phase composite composed of aggregates and binder which was epoxy resin mixed with fillers. Based on grading curve, the weights of aggregates were converted into the corresponding area, the aggregate particles were randomly generated and assembled with binder to produce the model. And then 2D numerical simulations were conducted under different gradations. The results show that: (1) the 2D FE model is very close to the real polymer-mineral composite material in the aspect of density and aggregate shapes and sizes, which validate the fidelity of the generated finite element model and numerical analysis method; (2) by comparing the materials’ properties under four different gradations, it can be found that the materials with SAC gradation have the best mechanical property.

Experimental and Numerical Analysis of a Pristine and a Nano-Modified Thermoplastic Adhesive

2018 ◽  
Author(s):  
Carlo Boursier Niutta ◽  
Raffaele Ciardiello ◽  
Giovanni Belingardi ◽  
Alessandro Scattina
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Numerical Analysis ◽  
Mechanical Behavior ◽  
Numerical Models ◽  
Surface Preparation ◽  
Experimental Results ◽  
Element Analysis ◽  
Piping Systems ◽  
Set Up

In this work, the mechanical properties of two different adhesives compositions have been investigated both experimentally and numerically. The studied thermoplastic adhesives are Hot-Melt Adhesive (HMA). In particular, a pristine and a nanomodified adhesive with 10% in weight of iron oxide have been considered. The adhesives have been subjected to a series of single lap joint (SLJ) tests using adherends made of polypropylene copolymer. As it is well-known, the structural-mechanical behavior of adhesive joints is mostly influenced by the bonding process: thickness of adhesive as well as its application procedures and the surface preparation of adherends are among the most influencing factors. In addition, the mechanical behavior of SLJ test is particularly influenced by the correct alignment of adherends and applied load. These aspects have been investigated, analyzing the experimental results. Moreover, the experimental results have been used to develop a numerical model of the two adhesives. The numerical analysis has been carried out using the commercial software LS-DYNA. Transient nonlinear finite element analysis has been performed to simulate the mechanical behavior of the thermoplastic adhesives. In particular, the cohesive formulations of the elements have been taken into consideration after a careful literature review. In order to set-up and to validate the mechanical properties of the adhesives, the experimental SLJ tests have been simulated. The developed finite element models enable to investigate more complex joint structures where these types of adhesives are used, such as plastic piping systems and automotive applications. Further, the numerical models allow to investigate with higher accuracy and lower time different aspects such as manufacturing and non-linear effects.

Study on the Analysis Model of the Self-Centering Wall

2013 ◽  
Vol 353-356 ◽  
pp. 1850-1857 ◽  
Author(s):  
Xiao Bin Hu ◽  
Wen Xia Li ◽  
Hao Xiang ◽  
Hui Gao He
Keyword(s):  
Finite Element ◽  
Numerical Analysis ◽  
Theoretical Analysis ◽  
Mechanical Behavior ◽  
Numerical Simulations ◽  
The Self ◽  
Hysteresis Curve ◽  
Analysis Model ◽  
Horizontal Connection ◽  
Analysis Models

The self-centering wall including both prestressed tendons and dampers is proposed in this paper, and the corresponding general finite element numerical analysis model, simplified numerical analysis model and theoretical analysis model were established respectively, focusing on how to simulate the prestressed tendons, dampers and the horizontal connection between the wall and the foundation. The numerical simulations of the self-centering wall subjected to reversal loading were performed using the above two numerical analysis models, and the results were compared to those obtained from theoretical analysis. It is indicated that the hysteresis curve of the self-centering wall under reversal loading exhibits flag shape and no residual displacement exists after the wall is unloaded completely. The numerical analysis results match well with those from theoretical analysis, which shows the two numerical analysis models proposed in this paper can be well used to capture the mechanical behavior of the self-centering wall.

scholarly journals A 2-D numerical model of the mechanical behavior of the textile-reinforced concrete composite material: effect of textile reinforcement ratio

2020 ◽  
Vol 61 (3) ◽  
pp. 51-59 ◽  
Author(s):  
Tien Manh Tran ◽  
Tu Ngoc Do ◽  
Ha Thu Thi Dinh ◽  
Hong Xuan Vu ◽  
Emmanuel Ferrier ◽  
...  
Keyword(s):  
Finite Element ◽  
Composite Material ◽  
Reinforced Concrete ◽  
Numerical Model ◽  
Mechanical Behavior ◽  
Basalt Fiber ◽  
Reinforcement Ratio ◽  
Experimental Results ◽  
Textile Reinforced Concrete ◽  
Engineering Structures

The textile-reinforced concrete composite material (TRC) consists of a mortar/concrete matrix and reinforced by multi-axial textiles (carbon fiber, glass fiber, basalt fiber, etc.). This material has been used widely and increasingly to reinforce and/or strengthen the structural elements of old civil engineering structures thanks to its advantages. This paper presents a numerical approach at the mesoscale for the mechanical behavior of TRC composite under tensile loading. A 2-D finite element model was constructed in ANSYS MECHANICAL software by using the codes. The experimental results on basalt TRC composite from the literature were used as input data in the numerical model. As numerical results, the basalt TRC provides a strain-hardening behavior with three phases, depending on the number of basalt textile layers. In comparison with the experimental results, it could be found an interesting agreement between both results. A parametric study shows the significant influence of the reinforcement ratio on the ultimate strength of the TRC composite. The successful finite element modeling of TRC specimens provides an economical and alternative solution to expensive experimental investigations.

scholarly journals Estimation of Initial Debonding Stress in Adhesive Structure between Concrete and Composites

1996 ◽  
Vol 5 (3) ◽  
pp. 096369359600500
Author(s):  
Atsushi Yokoyama ◽  
Akihiro Fujita ◽  
Shigeo Urai ◽  
Hiroyuki Hamada
Keyword(s):  
Experimental Data ◽  
Finite Element Method ◽  
Finite Element ◽  
Composite Material ◽  
Composite Materials ◽  
Numerical Analysis ◽  
Bonding Strength ◽  
Concrete Structures ◽  
Numerical Results ◽  
Good Agreement

This paper describe a numerical analysis using finite element method(FEM) to investigate effects of composite material on repairing of concrete structures. The numerical results were in good agreement with the experimental data. Particularly, bonding strength between composite materials and concrete was investigated.

Interactive Graphics for the Analysis of Tires

1985 ◽  
Vol 13 (3) ◽  
pp. 127-146 ◽  
Author(s):  
R. Prabhakaran
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Approximate Solutions ◽  
Interactive Graphics ◽  
Element Analysis ◽  
Analysis Process ◽  
Physical Problems ◽  
The Finite Element Analysis ◽  
Analysis Computer ◽  
Discretization Technique

Abstract The finite element method, which is a numerical discretization technique for obtaining approximate solutions to complex physical problems, is accepted in many industries as the primary tool for structural analysis. Computer graphics is an essential ingredient of the finite element analysis process. The use of interactive graphics techniques for analysis of tires is discussed in this presentation. The features and capabilities of the program used for pre- and post-processing for finite element analysis at GenCorp are included.

FINITE ELEMENT ANALYSIS OF RECTANGULAR RESONATORS WITH METAL INCLUSIONS

2019 ◽  
Author(s):  
Sergey Bushanskiy ◽  
Vyacheslav Komarov ◽  
A. Churkin
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Electrodynamic Characteristic ◽  
Metallic Inclusions ◽  
Element Method

Electrodynamic characteristic of two rectangular resonators with metallic inclusions are analyzed by using the finite element method.

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