finite element analysis of a bicycle frame

... post-production data analysis tasks The tools have certainly matured, but it is the scale and complexity of the data coming from the applications that renders ad hoc data management and data visualization ... specifically calls for a particular field mapped onto a particular geometry, the data for that mapping may not even explicitly reside in a database table That is, many physical or mechanical measures ... lookup tables can be generated as part of the general initialization after bulk loading the model - 22 - Supporting Finite Element Analysis with a Relational Database Backend 23 We can certainly...

Ngày tải lên: 30/03/2014, 22:20

... method of element removal and reactivation and the use of a new initial temperature at T s to calculate the stress/strain of the solidified elements During the calculation, element removal and reactivation ... thermal and plastic strains, it can be seen that the total strains in both cases have a similar trend The total strain increases and then decreases, and at about 100 ns it increases rapidly and ... melting and solidification with the aid of the temperature history data obtained from the thermal analysis The reason for using a new initial temperature for a reactivated element is explained as follows...

Ngày tải lên: 06/05/2014, 08:55

... frame and activated by hand from a pull ram positioned on the laboratory floor The jack was connected to the beam with a 25mm dia high tensile steel bar and shackle arrangement The shackle arrangement ... indicators and readings at each load increment noted The arrangement of test strain/dial gauges are shown in Figure Details of a bolt strain gauge are shown in Figure Figure - Strain / Dial gauge locations ... increased connection capacities still had a reserve of approximately 30% Overall the finite element analysis of extended end plate connections can be seen to provide advantages in terms of time and...

Ngày tải lên: 04/06/2014, 13:20

... Finite element idealisation of axisymmetric Fig Finite element idealisation of axisymmetric problem, mesh AM1 problem, mesh AM2 y p x 100mm 200mm Fig Finite element idealisation of plane strain ... the shear modulus of the layer material If the stress at the middle surface of a layer reaches the uniaxial yield stress of the layer ⎛ material, the whole layer is considered to be plastic and ... especially adaptive for analyzing some thick-walled pipes structures made by composite material! Elements containing differential material properties have differential stiffness or they have differential...

Ngày tải lên: 22/07/2014, 10:21

... 1959-1976 Droz, P., and Bazant, Z P., 1989, “Nonlocal Analysis of Stable States and Stable Paths of Propagation of Damage Shear Bands,” Cracking and Damage, edited by J Mazars and Z P Bazant, Elsevier, ... factor is a material property Damage—Breaking of bonds within a material Damage can be manifested as continuum damage (distributed microcracks), or as a single macrocrack Other forms of damage ... successful analyses Bazant, Pan, and Pijaudier-Cabot (1987) and Bazant, Pijaudier-Cabot, and Pan (1987) analyzed the softening postpeak load-deflection relation for reinforced concrete beams and frames...

Ngày tải lên: 24/10/2014, 21:58

... low-velocity impact on composite laminates generally consists of two types at the micro level, namely interlaminar damage, also known as delaminations, and intralaminar damage Intralaminar damage, which ... separately Damage resistance of a material can be defined as the ability of the material not to undergo a permanent change due to a loading event [33], while damage tolerance relates to the capacity ... selection of commercially available finite element codes such as Abaqus/Standard, Abaqus/Explicit and LS-Dyna to study the topic of impact damage of composite materials Such codes have the capability...

Ngày tải lên: 10/09/2015, 09:04

... a back -analysis of an actual three-dimensional tunnel heading problem, namely the tunnelling operation of Contract 704 of the Northeast Mass Rapid Transit Line This back -analysis exercise leads ... will also be investigated This illustrates the feasibility of conducting detailed and realistic 3-D analyses on relatively modest computational platforms which are readily available A comparison ... been partially unloaded This is the approach used by the “3-D” analysis in commercial softwares such as PLAXIS V.7 (1998) 20 Table 2.1 Summary of Analytical research Reference Description of Study...

Ngày tải lên: 17/09/2015, 17:19

... idea of ‘different strain measures’ and also concepts such as ‘total Lagrangian’, ‘up-dated Lagrangian’ and ‘corotational’ procedures Chapters and extend these ideas to continua, which Chapter ... (1970) [M6] Marcal, P V., Finite element analysis with material non-linearities-theory and practise, Recent Advances in Matrix Methods of Structural Analysis & Design, ed R H Gallagher et al., The ... be aware of how such topics are handled in a computer program and what are the potential limitations Textbooks are, of course, available on most of these topics and the potential user of a non-linear...

Ngày tải lên: 26/04/2016, 08:47

... two-dimensionalcontinua A co-rotationalapproach for three-dimensionalcontinua A co-rotational approach for a curved membrane using facet triangles A co-rotational approach for a curved membrane using quadrilaterals ... Non-linear Finite Element Analysis of Solids and Structures ~~ ~ Volume 2: Advanced Topics To Kiki, Lou, Max, ArabeIIa Gideon, Gavin, Rosie and Lucy Non-linear Finite Element Analysis of Solids and ... integration of the rate equations, plasticity and hyperelasticity follow in later chapters Much finite element work on large-strain elaso-plastic analysis has adopted a hypoelastic approach (see...

Ngày tải lên: 26/04/2016, 08:48

... Āplate, Ānail (m2) Aplate, Anail (m2) Ān Cross sectional area of 2D idealized plate and 3D nail Contact surface area of 2D idealized plate and 3D nail with soil Cross sectional area factor Af ... Modes of failure encountered by soil nailing (c) Combination of Internal and External Failure 1.1.3 Advantages and Disadvantages of Soil Nailing as a Geotechnical Application The main advantages of ... is hard to obtain parameters accurately that resemble actual conditions Hence the accuracy achieved by using complicated software is often offset by inaccurate parameters used Accurate analysis...

Ngày tải lên: 06/10/2015, 20:57

... stress analysis, for most analyses of operational loads, linear analysis is adequate as it is usually undesirable to have operational loads that can lead to nonlinear material behavior or large ... flow analysis of coolant ponds, pollutants and contaminants, and air in ventilation systems; e electromagnetic analysis of antennas, transistors and aircraft signatures; f analysis of surgical ... two are not compatible The availability of a wide range of analysis capabilities in one program makes possible analyses of many complex real-life problems For example, the flow around a car and...

Ngày tải lên: 08/04/2014, 10:34

... details of folding joints (b) A sample vibration-mode shape of a five-module truss as obtained via finite element analysis (Courtesy: AIAA) 14 Hutton: Fundamentals of Finite Element Analysis Basic ... LINEAR SPRING AS A FINITE ELEMENT A linear elastic spring is a mechanical device capable of supporting axial loading only and constructed such that, over a reasonable operating range (meaning ... Fundamentals of Finite Element Analysis Basic Concepts of the Finite Element Method Text © The McGraw−Hill Companies, 2004 1.5 Examples of Finite Element Analysis Figure 1.7 A mesh of finite elements...

Ngày tải lên: 08/04/2014, 10:37

... details of folding joints (b) A sample vibration-mode shape of a five-module truss as obtained via finite element analysis (Courtesy: AIAA) 14 Hutton: Fundamentals of Finite Element Analysis Basic ... LINEAR SPRING AS A FINITE ELEMENT A linear elastic spring is a mechanical device capable of supporting axial loading only and constructed such that, over a reasonable operating range (meaning ... Fundamentals of Finite Element Analysis Basic Concepts of the Finite Element Method Text © The McGraw−Hill Companies, 2004 1.5 Examples of Finite Element Analysis Figure 1.7 A mesh of finite elements...

Ngày tải lên: 26/05/2014, 03:41

... solver • Automated fast profile optimization • SAP2000 • Non-linear Pushover Analysis General Dynamic Analysis Analysis Options Eigenvalue analysis with an accelerated subspace iteration algorithm ... t ) Analysis Options Extensive Analysis Capabilities Static and/or dynamic response spectrum analysis • P-delta analysis with either static or dynamic analysis • Blocked active column equation ... vehicle loads • SAP2000 • User-defined truck, lane and train loads Bridge Analysis Bridge Analysis Determination of maximum and minimum displacement a nd reactions • SAP2000 • Capable of handing...

Ngày tải lên: 11/06/2014, 03:16

... sum of two n × n matrices, A and B, is a matrix, C, in which cij = aij + bij The product of a matrix, A, and a scalar, q, is a matrix, C, in which cij = qaij T T The transpose of a matrix, A, ... invariants I1 (A) , I2 (A) , and I3 (A) For a scalar-valued function f (A) , df (A) = ∂f  ∂f  da = tr  dA ,  A  ∂aij ij ∂f  ∂f    =  A  ij ∂aij (2.81) However, with a = VEC (A) , we can also ... similarly show that I and 0749 _Frame_ C02 Page 27 Wednesday, February 19, 2003 5:00 PM Mathematical Foundations: Tensors 27 2.2 DIVERGENCE, CURL, AND LAPLACIAN OF A TENSOR Suppose A is a tensor and...

Ngày tải lên: 27/06/2014, 15:20

... details of folding joints (b) A sample vibration-mode shape of a five-module truss as obtained via finite element analysis (Courtesy: AIAA) 14 Hutton: Fundamentals of Finite Element Analysis Basic ... LINEAR SPRING AS A FINITE ELEMENT A linear elastic spring is a mechanical device capable of supporting axial loading only and constructed such that, over a reasonable operating range (meaning ... Fundamentals of Finite Element Analysis Basic Concepts of the Finite Element Method Text © The McGraw−Hill Companies, 2004 1.5 Examples of Finite Element Analysis Figure 1.7 A mesh of finite elements...

Ngày tải lên: 08/08/2014, 17:20

... F2 and F4 are to be applied such that the resultant force in element is zero and node displaces an amount Hutton: Fundamentals of Finite Element Analysis Stiffness Matrices, Spring and Bar Elements ... static indeterminacy is automatically accommodated As the reader may recall from study of mechanics of materials, the solution of statically indeterminate systems requires 55 Hutton: Fundamentals ... Hutton: Fundamentals of Finite Element Analysis 42 Stiffness Matrices, Spring and Bar Elements CHAPTER Text © The McGraw−Hill Companies, 2004 Stiffness Matrices, Spring and Bar Elements Again invoking...

Ngày tải lên: 08/08/2014, 17:20

... finite element software packages, buckling and stress stiffening analyses are available as options when such an element is used in an analysis (The reader should be aware that buckling and stress ... perpendicular to the plane of loading All connections are treated as welded joints Using two beam-axial elements and the node numbers as shown, determine Hutton: Fundamentals of Finite Element Analysis ... of these observations regarding rotations, the nodal variables to be associated with a flexure element are as depicted in Figure 4.4 Element nodes and are located at the ends of the element, and...

Ngày tải lên: 08/08/2014, 17:20

... (a) (b) Figure 6.14 A four-node rectangular element showing (a) the translation to natural coordinates, (b) the natural coordinates of each node 185 Hutton: Fundamentals of Finite Element Analysis ... is because the base and height of any triangle so formed are constants Further, as the dashed line is moved closer to node 1, area A increases linearly and has value A = A , when evaluated at node ... Figure 6.11 (a) Area A1 associated with either P or P is constant (b) Lines of the constant area coordinate L1 where A is the total area of the triangle Clearly, the area coordinates are not independent,...

Ngày tải lên: 08/08/2014, 17:20

... take a general approach initially; that is, a specific element geometry is not used Instead, we assume a two-dimensional element having M nodes Hutton: Fundamentals of Finite Element Analysis Applications ... Mapping of a parent element into an isoparametric element A rectangle is shown for example 195 Hutton: Fundamentals of Finite Element Analysis 196 Interpolation Functions for General Element Formulation ... cylindrical coordinates (b) A threenode triangle in cylindrical coordinates at an arbitrary value ␪ Hutton: Fundamentals of Finite Element Analysis Interpolation Functions for General Element Formulation...

Ngày tải lên: 08/08/2014, 17:20