The objective of this study is to investigate structural shadow zones encountered in shipbuilding design using the I-DEAS (Integrated Design Engineering Analysis Software) software. The term 'shadow zone' refers to areas of low stress concentrations that are caused by lines of stress bending around structural discontinuities. Two ship design situations frequently encountered that result in shadow zones are hull girder penetrations and short structural longitudinal bulkheads. In both of these...

Topic: STRESS ANALYSIS

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96

Oct 9, 2015
10/15

by
Brasek, Thomas Peyton.;Kwon, Young W.;Shin, Y. S.

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Cover title

Topic: STRESS ANALYSIS.,VISCOELASTICITY.

Naval Postgraduate School

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176

Jan 25, 2013
01/13

by
Brasek, Thomas Peyton.;Kwon, Young W.;Shin, Y. S.

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Topics: STRESS ANALYSIS., VISCOELASTICITY.

ADINA, a finite element program for automatic dynamic incremental nonlinear analysis, is used to conduct a stress analysis of the Tarawa class (LHA-1) superheater header. This investigation is sponsored by the Naval Sea Systems Command (NAVSEA) as a result of cracking in the superheater header tube attachment weld. A 2-dimensional solid axisymmetric finite element model was developed using both a coarse and fine mesh. Both pressure and thermally induced stresses were studied. A 3-dimensional...

Topics: Mechanical engineering, thermal stress analysis

Modeling the wing in ANSYS Mechanical APDL using working model parameters and applying the loads accordingly. The idealization of the wing and all its structural components to a single wing element. Obtaining the results and comparing them. In this project, we are considering different composite materials and their properties. The wing model is generated and meshed to produce required elements and nodes. The Loads are applied accordingly with reference to the working model. When the...

Topics: Stress Analysis, Wing Analysis & Ansys

Calculations of transient thermal stress levels were made for composite coatings of hollow cylinders. Stress analysis was done during a thermal cycle of successive heating and cooling periods. Various coating configurations were investigated. The results showed the effect of changes in coating arrangements and the failure modes due to the excessive stress levels. Solutions were obtained by approximate techniques, and a computer program for transient three dimensional thermal stress analysis was...

Topics: Mechanical engineering, Transient Thermal Stress Analysis

Thesis advisor, Charles N. Calvano

Topics: STRESS ANALYSIS, STRUCTURAL ANALYSIS, SHIP HULLS

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371

May 6, 2010
05/10

by
Manson, S. S.; Millenson, M. B

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No Abstract Available

Topics: CREEP PROPERTIES, PLASTIC FLOW, STRESS ANALYSIS

Threaded fastener such as U bolts are probably the best choice to apply a desired clamp load to assemble a joint or connection. The main characteristic of holding U bolt of automobile wheel is being under cyclic load which are applied by bumpy rods. So it is necessary to prevent the failure of U bolt under different condition. To do experimental testing for every new design of bolted connection. by Hitesh Patil | Dr. S. I. Kolhe "Experimental Investigation of U Bolt used in Leaf Spring...

Topics: Mechanical Engineering, Stress Analysis, loading condition

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93

Oct 6, 2015
10/15

by
Baumann, Gregg W.

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Thesis advisor, Charles N. Calvano

Topic: STRESS ANALYSIS,STRUCTURAL ANALYSIS,SHIP HULLS

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295

May 21, 2011
05/11

by
Liepmann, H W; Laufer, J; Liepmann, Kat

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No Abstract Available

Topics: PROPELLERS - STRESSES & STRESS ANALYSIS, PROPELLERS - DEFLECTION

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296

Jun 17, 2010
06/10

by
Kubenko, V. D

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Analysis of stresses near elliptic hole in thin infinite plate subject to oscillating pressure

Topics: HOLES (MECHANICS), OSCILLATIONS, PRESSURE OSCILLATIONS, STRESS ANALYSIS, STRESS DISTRIBUTION, THIN...

A gear is a rotating machine part having cut teeth , or cogs , which mesh with another toothed part in order to transmit torque. In order to avoid undercutting and interference, addendum modification of the gear tooth is carried out in this paper, a standard and a profile corrected carried out spur gear pair is modeled. The material used is plastic (Nylon-66). The gear ratio assumed was 1.5 with a module of 10 and correction factor taken to be 0.5. The dimension of the models was arrived at by...

Topics: Spur Gear, Bending, Contact & Stress Analysis

Composite structure repair methodology has been developed to specific applications (typically in small area and limited to secondary structure) and is being extended to Large Area Composite Structure Repair (with target extension to primary structures). Therefore, the repair becomes more critical because we get redistribution of stresses that can also affect the zones outside of the repair area. For this reason, an analytic evaluation of the repair's reliability has to be performed to define a...

Topics: finite element and stress analysis, reliability calculation

Steam turbine blades are the most important component of the thermal power plant. Most of the research work on creep estimation is done on the high pressure or intermediate pressure turbines blades. The main aim of this study is to estimate the creep life of 210 MW low pressure steam turbine blade. In first stage the three dimensional model of the blade was prepared in the PRO-E then this model is imported in ANSYS-14.5 for finite element analysis. Maximum stress and maximum deformation can be...

Topics: Creep, Larson Miller Parameter, Stress Analysis, Turbines.

A computerized solution for three dimensional stress analysis was developed. The solution was based on the finite element technique employing twenty and thirty-two nodal point three dimensional isoparametric elements. The solution is applicable to linear elastic structures composed of homogeneous and isotropic materials subjected to static loading under constant temperature. Deformed states are restricted to small displacements and displacement gradients. The program is coded in standard...

Topics: Mechanical engineering, finite element, three dimensional stress analysis

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Oct 6, 2015
10/15

by
Danielson, D. A. (Donald A.).;Steele, C. R.;Fakhroo, Fariba.;Cricelli, A. S.

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Technical report for the period October 1993 - December 1994.

Topic: MECHANICAL PROPERTIES.,SHIPS.,STRESS ANALYSIS.,SUBMARINES.,SHIP PLATES.

Cover title

Topics: SHIP HULLS., STRESS ANALYSIS., SHIP MODELS., SKIN(STRUCTURAL)

2,572
2.6K

Jun 17, 2010
06/10

by
Paris, P. C.; Sih, G. C

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Elastic stress analyses of cracked bodies represented by stress intensity factor method - fracture mechanics

Topics: CRACK INITIATION, CRACKS, FRACTURE MECHANICS, PLASTIC PROPERTIES, STRESS ANALYSIS, STRESS INTENSITY...

The main objective of this study is to design the lifting fixture for the centre housing component using Catia to avoid the usage of a belt for lifting purpose and also to analyse the minimum and maximum stress of the designed fixture for the given load using Ansys software. Fixture design is a vital role in handling the production side and it minimizes lifting problems during loading and unloading time. Belt usage has eliminated accidents and is easily operated by the operators. Thus the...

Topics: Fixtures, Centre Housing, Catia, FEM, Stress Analysis & Design

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83

Oct 7, 2015
10/15

by
Danielson, D. A. (Donald A.)

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Topic: SHIP HULLS.,STRESS ANALYSIS.,SHIP MODELS.,SKIN(STRUCTURAL)

The metal construction market in Brazil has grown significantly over the past few years. The weight reductions and performance increase of mechanical pieces obtained by using optimization techniques are significant to the point that currently its use is critical to define that competitiveness of the metal-mechanical engineering industries, and its undeniable importance in reducing costs. The optimization applied in the mechanical part design consists of using computational methods for...

Topics: Structural optimization, Stress analysis, Equal legs angles, Phoelasticity.

Naval Postgraduate School

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201

Jan 24, 2013
01/13

by
Danielson, D. A. (Donald A.).;Steele, C. R.;Fakhroo, Fariba.;Cricelli, A. S.

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Technical report for the period October 1993 - December 1994.

Topics: MECHANICAL PROPERTIES., SHIPS., STRESS ANALYSIS., SUBMARINES., SHIP PLATES.

Journal of Research of the National Institute of Standards and Technology

Topics: stress analysis, contrast, division, experimental mechanics, rotation, spatial frequency

In this paper the plan of the snare is finished by systematic strategy and configuration is accomplished for the distinctive materials like manufactured steel and high malleable steel. After the expository strategy plan and demonstrating of the snare is done in displaying programming (strong edge). The displaying is finished utilizing the outline figuring from the demonstrating the investigation of the snare is done in FEA programming (ANSYS). This result leads us to the assurance of worry in...

Topics: Crane Hook, Ansys, FEA Programming, Modeling, Meshing & Stress Analysis.

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84

Dec 29, 2020
12/20

by
Ross, C. T. F., 1935-

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338 pages : 25 cm

Topics: Structural analysis (Engineering), Strains and stresses, Festigkeitslehre, Stress analysis

Chandan Das 1 , Suman Das 2 *, Debamalya Banerjee 3 , Amalendu Samanta 4 , Bidyut Kumar Bhattacharyya 5 1 Department of Production Engineering, J.U., Kolkata, West Bengal, India; 2 *Department of Mechanical Engineering, Swami Vivekananda Institute of Science & Technology, Kolkata, West Bengal, India; 3 Department of Production Engineering, J.U, Kolkata, West Bengal, India; 4 Department of Occupational Health, All India Institute of Hygiene and Public Health, West Bengal, India; 5 Department...

Topics: Discomfort feelings, health status, posture analysis, RULA, Stress analysis.

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266

Jul 11, 2010
07/10

by
Baty, D. L.; Wempe, T. E.; Huff, E. M

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Six airline pilots participated in a fixed-base simulator study to determine the effects of two Horizontal Situation Display (HSD/map) panel locations relative to the Vertical Situation Display (VSD), and of three map orientations on manual piloting performance. Pilot comments and opinions were formally obtained. Significant performance differences were found between wind conditions, and among pilots, but not between map locations and orientations. The results also illustrate the potential...

Topics: FRACTURE MECHANICS, FRACTURE STRENGTH, INFORMATION RETRIEVAL, STRESS ANALYSIS, TOUGHNESS

http://uf.catalog.fcla.edu/uf.jsp?st=UF001066185&ix=nu&I=0&V=D&pm=1

Topics: Dental Stress Analysis, Emotions--Child, Emotions--Infant, Pediatric Dentistry.

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339

Jul 9, 2010
07/10

by
Stevens, N. J

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The Space Plasma, High Voltage Interaction Experiment (SPHINX) is the name given to an auxiliary payload satellite scheduled to be launched in January 1974. The principal experiments carried on this satellite are specifically designed to obtain the engineering data on the interaction of high voltage systems with the space plasma. The classes of experiments are solar array segments, insulators, insulators with pin holes and conductors. The satellite is also carrying experiments to obtain flight...

Topics: MECHANICAL PROPERTIES, STRESS ANALYSIS, VISCOELASTICITY, DEFORMATION, ELASTIC PROPERTIES, MATERIALS...

Conveyor pulleys deflect the belt on a conveyor and in the case of drive and take-up units, pulleys introduced the required motive force and tension into the belt. Mechanical advantage is a measurement of how much a simple machine multiplies a force. The bigger the mechanical advantage, the lesser the force needed, but greater the distance have to use that force. The present analysis has been carried by using finite element analysis. By applying various identification numbers of the pulley and...

Topics: Fatigue Analysis, Radial Stress, Hoop Stress, Von Mises Stress & Analysis

266
266

May 23, 2011
05/11

by
Workman, Gary L.; Rathz, To

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Microgravity materials processing experiments provide an opportunity to perform scientific research in an environment which allows one to observe various phenomena without the masking effects of gravity-driven convective flows, buoyancy, or contaminating influences of walled containers. Even for the most experienced scientists, it is still difficult to predict beforehand, whether or not microgravity experimentation can be successfully performed in space and achieve solutions to problems which...

Topics: CRACK PROPAGATION, STRESS INTENSITY FACTORS, FATIGUE (MATERIALS), FRACTURING, STRESS ANALYSIS

Journal of Research of the National Institute of Standards and Technology

Topics: optimum design, ceramics, finite element method, stress analysis, stress relaxation

Cover title

Topics: CHIPS(ELECTRONIC)., CIRCUIT BOARDS., SOLDERED JOINTS., CERAMIC MATERIALS., STRESS ANALYSIS.

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The author has identified the following significant results. Preliminary results from the Texoma frame of data indicate many potentials in the analysis and interpretation of ERTS-1 data. It is believed that one of the more significant aspects of this analysis sequence has been the investigation of a technique to relate ERTS analysis and surface observation analysis. At present a sequence involving (1) preliminary analysis based solely upon the spectral characteristics of the data, followed by...

Topics: COMPUTER PROGRAMS, STRESS ANALYSIS, TURBINE BLADES, ENGINE DESIGN, HIGH PRESSURE

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62

Oct 6, 2015
10/15

by
Salinas, David.;Shin, Philip Y.

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Cover title

Topic: CHIPS(ELECTRONIC).,CIRCUIT BOARDS.,SOLDERED JOINTS.,CERAMIC MATERIALS.,STRESS ANALYSIS.

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173

Jun 18, 2010
06/10

by
Akhmetzyanov, M. KH

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Stress and resultant membrane and flexural deformation in photoelastic coatings of thin walled shells

Topics: COATING, COATING, ELASTIC DEFORMATION, PHOTOELASTIC MATERIAL, STRESS ANALYSIS, THIN WALLED SHELL,...

355
355

Jul 5, 2010
07/10

by
Evans, J. S

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No Abstract Available

Topics: AIRCRAFT STRUCTURES, MATHEMATICAL MODELS, STRESS ANALYSIS, DAMPING, MOMENT DISTRIBUTION, TRUSSES

The object of this work was to explore the possibility of scaling a Finite Element program to fit in a small desktop computer. A program originally written in FORTRAN IV and called STAP was selected for the present project. This program is contained in Bathe and Wilson's Numerical Methods in Finite Element Analysis and was conceived to solve static linear elastic analysis. The program was rewritten in an enhanced form of BASIC language suitable for the Hewlett-Packard System 45 desktop...

Topics: Mechanical engineering, stress analysis, finite element, computer program, computer graphics

Journal of Research of the National Bureau of Standards

Topics: Creep, primary creep, shear, shell, stress analysis, thin wall, torsion, tube

217
217

Jun 1, 2010
06/10

by
Ginsburg, V. L

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Stress measurement by photoelastic techniques using diffuse light method

Topics: PHOTOELASTIC ANALYSIS, PHOTOELASTICITY, STRESS ANALYSIS, STRESS MEASUREMENT, PHOTOELASTIC STRESS...

199
199

Jun 21, 2010
06/10

by
Millionshchikov, M. D

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Aircraft, aerodynamic, and hydrodynamic studies at USSR research facility

Topics: MATHEMATICAL MODELS, MICHELL THEOREM, WEIGHT (MASS), ORTHOGONALITY, STRESS ANALYSIS, STRUCTURAL...

The goal is to determine the mechanisms of soil-cement interlocked brick plus wood fibers under compressive loading. For this we used experimental stress analysis techniques. Horizontal deformations (εx) and vertical (εy) of bricks were obtained with extensometers, in the configuration of five rosettes. From the values of these deformations and using the equations of the theory of elasticity, Poisson coefficients were determined and elasticity modules, and calculated the corresponding...

Topics: Soil-cement bricks, wood fibers, limit states Stress analysis, elasticity modules.

338
338

Aug 1, 2010
08/10

by
Caroglanian, Arme

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A frequency selective surface (FSS) composed of apertures in a metallic sheet is known as the inductive FSS. The infinite inductive FSS theory is derived and the aperture fields are solved by a spectral domain formulation with method of moments solution. Both full domain and subsectional basis functions are studied. A locally planar technique (LPT) is used to determine the forward scattered field from a generally shaped inductive FSS with arbitrary illumination.

Topics: COMPRESSIBILITY EFFECTS, REYNOLDS STRESS, STRESS ANALYSIS, TURBULENT FLOW, DECOMPOSITION, HIGH SPEED

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33

Jul 31, 2021
07/21

by
Ross, C. T. F., 1935-

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322 pages : 25 cm

Topics: Structural analysis (Engineering), Strains and stresses, Einführung, Festigkeitslehre, Statik,...

402
402

May 23, 2011
05/11

by
Banerjee, Nana S.; Geer, James F

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The problem of accurately reconstructing a piece-wise smooth, 2(pi)-periodic function f and its first few derivatives, given only a truncated Fourier series representation of f, is studied and solved. The reconstruction process is divided into two steps. In the first step, the first 2N 1 Fourier coefficients of f are used to approximate the locations and magnitudes of the discontinuities in f and its first M derivatives. This is accomplished by first finding initial estimates of these...

Topics: REYNOLDS STRESS, HOMOGENEOUS TURBULENCE, STRESS ANALYSIS, TURBULENCE MODELS, COEFFICIENTS, SYSTEMS...

1,471
1.5K

Jul 9, 2010
07/10

by
Underwood, R. W

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The characteristics of aerial cameras and their employment in remote sensor investigations are reported. The development and use of the multispectral camera is discussed. The properties and applications of photographic films for various types of aerial photography are analyzed. Equipment and techniques for processing film described.

Topics: CHEMICAL REACTIONS, COMPOSITE MATERIALS, POLYMERS, VISCOELASTICITY, MATERIALS TESTS, PHYSICAL...

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834

Jul 9, 2010
07/10

by
Huff, V. N.; Kerrebrock, J

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No Abstract Available

Topics: FAILURE, PREDICTION ANALYSIS TECHNIQUES, PROPELLANT GRAINS, MECHANICAL PROPERTIES, NONDESTRUCTIVE...

The search for more efficient gas turbine engines has led to the proposal for the replacement of metal high temperature components with ceramic components . Essential to this effort is the numerical analysis of proposed designs . This thesis report describes the model discretization of a proposed blade design, the development of pre- and post-processors for the ADINA finite element code and the initial stress analysis of the modeled blade.

Topics: Mechanical engineering, Gas Turbine, Stress Analysis, Finite Element, Pre- and Post- Processor

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199

May 29, 2011
05/11

by
Brosius, Jeffrey W

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The purpose of this project is to apply the coronal magnetographic technique to SOHO (Solar Heliospheric Observatory) /CDS (Coronal Diagnostic Spectrometer) EUV (Extreme Ultraviolet Radiation) and coordinated VLA microwave observations of solar active regions to derive the strength and structure of the coronal magnetic field. A CDS observing plan was developed for obtaining spectra needed to derive active region differential emission measures (DEMs) required for coronal magnetography. VLA...

Topics: STRESS ANALYSIS, SPACE SHUTTLES, STRUCTURAL ANALYSIS, SATELLITE DESIGN, LOADS (FORCES), COMPUTER...