Contact Stresses in Dovetail Attachments: Finite Element Modeling

The stress analysis of dovetail attachments presents some challenges. These challenges stem from the high stress gradients near the edges of contact and from the nonlinearities attending conforming contact with friction. To meet these challenges with a finite element analysis, refined grids are needed with mesh sizes near the edges of contact of the order of one percent of the local radii of curvature there. A submodeling procedure is described which can provide grids of sufficient resolution in return for moderate computational effort. This procedure furnishes peak stresses near contact edges which are converging on a sequence of three submodel grids, and which typically do converge to within about five percent.

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Developing an Extended IFC Data Schema and Mesh Generation Framework for Finite Element Modeling

Advances in Civil Engineering ◽

10.1155/2019/1434093 ◽

2019 ◽

Vol 2019 ◽

pp. 1-19

Author(s):

Zhao Xu ◽

Zezhi Rao ◽

Vincent J. L. Gan ◽

Youliang Ding ◽

Chunfeng Wan ◽

...

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Finite Element Modeling ◽

Mesh Generation ◽

Geometric Model ◽

Information Modeling ◽

Element Analysis ◽

Element Modeling ◽

The Finite Element Analysis ◽

Ifc Standard

Mesh generation plays an important role in determining the result quality of finite element modeling and structural analysis. Building information modeling provides the geometry and semantic information of a building, which can be utilized to support an efficient mesh generation. In this paper, a method based on BRep entity transformation is proposed to realize the finite element analysis using the geometric model in the IFC standard. The h-p version of the finite element analysis method can effectively deal with the refined expression of the model of bending complex components. By meshing the connection model, it is suggested to adopt the method of scanning to generate hexahedron, which improves the geometric adaptability of the mesh model and the quality and efficiency of mesh generation. Based on the extension and expression of IFC information, the effective finite element structure information is extracted and extended into the IFC standard mode. The information is analyzed, and finally the visualization of finite element analysis in the building model can be realized.

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PS09 Multiscale Finite Element Analysis of Piezoelectric Materials based on EBSD Crystal Morphology Analysis : investigation on Micro Finite Element Modeling

The Proceedings of the Materials and Mechanics Conference ◽

10.1299/jsmemm.2009.445 ◽

2009 ◽

Vol 2009 (0) ◽

pp. 445-446

Author(s):

Yuuki TANIGUCHI ◽

Syusuke KIMURA ◽

Hiroyuki KURAMAE ◽

Kazuyoshi TSUCHIYA ◽

Yasutomo UETSUJI

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Finite Element Modeling ◽

Crystal Morphology ◽

Piezoelectric Materials ◽

Element Analysis ◽

Element Modeling ◽

Morphology Analysis ◽

Multiscale Finite Element

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Structural Strength Analysis of FRP Yacht by FEM

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.275-277.105 ◽

2013 ◽

Vol 275-277 ◽

pp. 105-110 ◽

Cited By ~ 1

Author(s):

Yong Qing Ye ◽

Chao He Chen ◽

Xiao Liu

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Finite Element Modeling ◽

Sandwich Structure ◽

Structural Strength ◽

Composite Panel ◽

Strength Analysis ◽

Element Analysis ◽

Laminated Structure ◽

Element Modeling

This paper discusses the laminated structure and sandwich structure by finite element modeling, the process of finite element modeling of composite panel with top-hat stiffeners and finite element analysis of the whole hull. The result shows that the method and steps of modeling FRP yacht based on FEM to directly calculate the hull structural strength are instructive.

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Finite Element Modeling of the Response of Long Floating Structures Under Harmonic Excitation

Journal of Energy Resources Technology ◽

10.1115/1.3231162 ◽

1985 ◽

Vol 107 (1) ◽

pp. 48-53 ◽

Cited By ~ 2

Author(s):

C. Georgiadis

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Finite Element Model ◽

Finite Element Modeling ◽

Wave Field ◽

Element Model ◽

Harmonic Excitation ◽

Element Analysis ◽

Floating Structures ◽

Element Modeling

The response of long floating structures to a harmonic excitation is the basis for the response calculation in a short-crested wave field. This paper will present consistent formulas for obtaining the nodal loads in a finite element analysis. The accuracy of the method used is compared with the results obtained using a Rayleigh-Ritz approximation of the response with continuous eigenfunctions. The error of using an irrational finite element model is demonstrated for comparison, and to indicate to designers of similar structures the large effects which they may be overlooking.

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Finite Element Analysis of Drum on the New Type Self-Driven Towing Machine for Cable

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.55-57.664 ◽

2011 ◽

Vol 55-57 ◽

pp. 664-669

Author(s):

Jin Ning Nie ◽

Hui Wang ◽

De Feng Xie

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Stress Analysis ◽

Compressive Stress ◽

Wire Rope ◽

Ansys Software ◽

Element Analysis ◽

Structure Improvement ◽

Improvement Measures ◽

New Type

According to the situation that the dual-friction drums on the new type towing machine lack stress analysis when designed, the safety is difficult to test and verify. The pull of wire rope in various positions was derived and calculated, so both compressive stress and tangent friction force generated by the pull of wire rope were calculated. The result made by ANSYS software demonstrates the safety of the left drum which suffers from larger loads, structure improvement measures are put forward for the drum.

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Stress Analysis and Structure Optimization for the Opening Flat Cover of Pressure Vessels

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.538-541.3253 ◽

2012 ◽

Vol 538-541 ◽

pp. 3253-3258 ◽

Cited By ~ 1

Author(s):

Jun Jian Xiao

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Stress Concentration ◽

Stress Analysis ◽

Structure Optimization ◽

Pressure Vessels ◽

Secondary Stress ◽

Element Analysis ◽

Primary Stress ◽

Flat Cover

According to the results of finite element analysis (FEA), when the diameter of opening of the flat cover is no more than 0.5D (d≤0.5D), there is obvious stress concentration at the edge of opening, but only existed within the region of 2d. Increasing the thickness of flat covers could not relieve the stress concentration at the edge of opening. It is recommended that reinforcing element being installed within the region of 2d should be used. When the diameter of openings is larger than 0.5D (d>0.5D), conical or round angle transitions could be employed at connecting location, with which the edge stress decreased remarkably. However, the primary stress plus the secondary stress would be valued by 3[σ].

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Strength-based design of a sunflower stalk cutter machine design using finite element analysis and experimental validation

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/09544062211059741 ◽

2021 ◽

pp. 095440622110597

Author(s):

Gürkan İrsel

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Stress Analysis ◽

Strain Gage ◽

Experimental Validation ◽

Experimental Studies ◽

Fatigue Analysis ◽

Structural Stress ◽

Element Analysis ◽

Strength Based

In this study, the total algorithm of the strength-based design of the system for mass production has been developed. The proposed algorithm, which includes numerical, analytical, and experimental studies, was implemented through a case study on the strength-based structural design and fatigue analysis of a tractor-mounted sunflower stalk cutting machine (SSCM). The proposed algorithm consists of a systematic engineering approach, material selection and testing, design of the mass criteria suitability, structural stress analysis, computer-aided engineering (CAE), prototype production, experimental validation studies, fatigue calculation based on an FE model and experimental studies (CAE-based fatigue analysis), and an optimization process aimed at minimum weight. Approximately 85% of the system was designed using standard commercially available cross-section beams and elements using the proposed algorithm. The prototype was produced, and an HBM data acquisition system was used to collect the strain gage output. The prototype produced was successful in terms of functionality. Two- and three-dimensional mixed models were used in the structural analysis solution. The structural stress analysis and experimental results with a strain gage were 94.48% compatible in this study. It was determined using nCode DesignLife software that fatigue damage did not occur in the system using the finite element analysis (FEA) and experimental data. The SSCM design adopted a multi-objective genetic algorithm (MOGA) methodology for optimization with ANSYS. With the optimization solved from 422 iterations, a maximum stress value of 57.65 MPa was determined, and a 97.72 kg material was saved compared to the prototype. This study provides a useful methodology for experimental and advanced CAE techniques, especially for further study on complex stress, strain, and fatigue analysis of new systematic designs desired to have an optimum weight to strength ratio.

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