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.

The Accepting of Pipe Bends With Ovality and Thinning Using Finite Element Method

2010 ◽  
Vol 132 (3) ◽  
Author(s):  
AR. Veerappan ◽  
S. Shanmugam ◽  
S. Soundrapandian
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Internal Pressure ◽  
Cross Sections ◽  
Pressure Ratio ◽  
Empirical Relationship ◽  
The Finite Element Method ◽  
Element Method

Thinning and ovality are commonly observed irregularities in pipe bends, which induce higher stress than perfectly circular cross sections. In this work, the stresses introduced in pipe bends with different ovalities and thinning for a particular internal pressure are calculated using the finite element method. The constant allowable pressure ratio for different ovalities and thinning is presented at different bend radii. The allowable pressure ratio increases, attains a maximum, and then decreases as the values of ovality and thinning are increased. An empirical relationship to determine the allowable pressure in terms of bend ratio, pipe ratio, percent thinning, and percent ovality is presented. The pipe ratio has a strong effect on the allowable pressure.

scholarly journals Extended finite element method for simulating the mechanical behavior of multiple random holes and inclusions in functionally graded material

2017 ◽  
Vol 20 (K2) ◽  
pp. 141-147
Author(s):  
Bang Kim Tran ◽  
Huy The Tran ◽  
Tinh Quoc Bui ◽  
Thien Tich Truong
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Functionally Graded Material ◽  
Extended Finite Element Method ◽  
Functionally Graded ◽  
The Finite Element Method ◽  
Extended Finite Element ◽  
Graded Material ◽  
Element Method

Analysis of mechanical behavior of a structure containing defects such as holes and inclusions is essential in many engineering applications. In many structures, the discontinuities may have a significant influence on the reduction of the structural stiffness. In this work, we consider the effect of multiple random holes and inclusions in functionally graded material (FGM) plate and apply the extended finite element method with enrichment functions to simulate the mechanical behavior of those discontinuous interfaces. The inclusions also have FGM properties. Numerical examples are considered and their obtained results are compared with the COMSOL, the finite element method software.

Meso modeling of silk wire rope scaffolds in tissue engineering

2016 ◽  
Vol 47 (3) ◽  
pp. 377-389 ◽  
Author(s):  
Sayyed Behzad Abdellahi ◽  
Elham Naghashzargar ◽  
Dariush Semnani
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Element Model ◽  
Maximum Error ◽  
Wire Rope ◽  
The Finite Element Method ◽  
Energy Potential ◽  
Wire Ropes ◽  
Element Method

Finite element method can provide valuable results and information to evaluate and assess the mechanical behavior of tissue engineered scaffolds. In this investigation, a structurally and analytically based model is applied to analyze and to describe the mechanical properties of wire rope yarns as scaffold or other applications in textile engineering. In order to modeling the mechanical behavior of single yarn, non-linear hyperfoam model with three strain energy potential has been used. The results of finite element model are compared with an experimental approach and showed good agreement between software and experimental analysis with a maximum error at break of about 4.3%. As a result, validation of the finite element method is guaranteed for analysis of other structure of multi twisted yarn or wire ropes.

Mechanical behavior of coronary stents investigated through the finite element method

2002 ◽  
Vol 35 (6) ◽  
pp. 803-811 ◽  
Author(s):  
Francesco Migliavacca ◽  
Lorenza Petrini ◽  
Maurizio Colombo ◽  
Ferdinando Auricchio ◽  
Riccardo Pietrabissa
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Coronary Stents ◽  
The Finite Element Method ◽  
Element Method

A Case Study of Conceptual Design Analysis of Stove Brackets Using Finite Element Method

2008 ◽  
Author(s):  
Diego Va´zquez ◽  
Hugo Medelli´n ◽  
Antonio Ca´rdenas ◽  
Alonso de la Garza
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Experimental Analysis ◽  
Mechanical Performance ◽  
Fem Simulation ◽  
Production Costs ◽  
The Finite Element Method ◽  
Design Change ◽  
Element Method

Advanced engineering techniques for analysis are modern tools used for companies to enhance the design and manufacturing cycles of new or existing products. Finite element method has become one of the most used tools in the design process of products. This paper presents a case study regarding a design change of the brackets that support the gas jet in stoves. Using the finite element method, the mechanical performance of the existing brackets is compared with the performance of the new proposed bracket. This comparison is used to evaluate the feasibility of carrying out the design change. The benefit of the new design is a reduction of materials, production costs and production times. Experimental analysis of the materials and the validation of the finite element solutions were also performed. The results of the experimental analysis and FEM simulation are discussed and presented. Finally, the performance of the existing and the new brackets under several load cases is compared and the results suggest that the product design change is feasible.

Finite Element Analysis of a Steel Bracket

2014 ◽  
Vol 1061-1062 ◽  
pp. 584-587
Author(s):  
Xiao Liang Chen ◽  
Zuan Tian ◽  
Yuan Ping Li
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Sheet Metal ◽  
Theoretical Method ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Stress And Deformation ◽  
Element Method

With the development of the society, sheet metal filing cabinets have become popular in the office. When filing cabinets store too many paper documents, the interlayer splints often fail because of the failure of the small brackets below. The stress and deformation of brackets were studied by the theoretical method and the finite element method. Results show some small machining shape defects have little influence on the mechanical behavior of brackets. The failure reason of small brackets is not the strength, but the instability.

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