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Author: 劉國楨 Publisher: ISBN: 9781374686557 Category : Languages : en Pages :
Book Description
This dissertation, "A Conic-section Simulation Analysis of Two-dimensional Fracture Problems Using Finite Element Method" by 劉國楨, Kwok-jing, Lau, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4212760 Subjects: Metals - Fracture
Author: 劉國楨 Publisher: ISBN: 9781374686557 Category : Languages : en Pages :
Book Description
This dissertation, "A Conic-section Simulation Analysis of Two-dimensional Fracture Problems Using Finite Element Method" by 劉國楨, Kwok-jing, Lau, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4212760 Subjects: Metals - Fracture
Author: T.A. Cruse Publisher: Springer Science & Business Media ISBN: 9400913850 Category : Science Languages : en Pages : 171
Book Description
The Boundary Integral Equation (BIE) method has occupied me to various degrees for the past twenty-two years. The attraction of BIE analysis has been its unique combination of mathematics and practical application. The EIE method is unforgiving in its requirement for mathe matical care and its requirement for diligence in creating effective numerical algorithms. The EIE method has the ability to provide critical inSight into the mathematics that underlie one of the most powerful and useful modeling approximations ever devised--elasticity. The method has even revealed important new insights into the nature of crack tip plastic strain distributions. I believe that EIE modeling of physical problems is one of the remaining opportunities for challenging and fruitful research by those willing to apply sound mathematical discipline coupled with phys ical insight and a desire to relate the two in new ways. The monograph that follows is the summation of many of the successes of that twenty-two years, supported by the ideas and synergisms that come from working with individuals who share a common interest in engineering mathematics and their application. The focus of the monograph is on the application of EIE modeling to one of the most important of the solid mechanics disciplines--fracture mechanics. The monograph is not a trea tise on fracture mechanics, as there are many others who are far more qualified than I to expound on that topic.
Author: National Aeronautics and Space Administration (NASA) Publisher: Createspace Independent Publishing Platform ISBN: 9781725162495 Category : Languages : en Pages : 38
Book Description
A comparison of the finite element method (FEM) and boundary element method (BEM) for the solution of two-dimensional plane strain problems in fracture mechanics is presented in this paper. Stress intensity factors (SIF's) were calculated using both methods for elastic plates with either a single-edge crack or an inclined-edge crack. In particular, two currently available programs, ANSYS for finite element analysis and BEASY for boundary element analysis, were used. Min, J. B. and Steeve, B. E. and Swanson, G. R. Marshall Space Flight Center NASA-TP-3277, M-695, NAS 1.60:3277 ...
Author: A. S. Kobayashi Publisher: ISBN: Category : Languages : en Pages : 24
Book Description
The method of direct stiffness is used to determine stress intensity factors for two-dimensional fracture mechanic problems of practical interest. For most problems, the crack opening displacement about three nodal positions away from the crack tip was used to determine the stress intensity factor within a projected accuracy of plus or minus 5%. The requirement of extremely small finite elements in the vicinity of the crack tip is circumvented and the amount of computational effort is reduced. Stress intensity factors obtained by this method include the double cantilever specimen, notched cylinder with internal pressure, edge-notched square plate with prescribed edge displacements, and the tension plate with slanted cracks. (Author).
Author: Meinhard Kuna Publisher: Springer Science & Business Media ISBN: 9400766807 Category : Science Languages : en Pages : 464
Book Description
Fracture mechanics has established itself as an important discipline of growing interest to those working to assess the safety, reliability and service life of engineering structures and materials. In order to calculate the loading situation at cracks and defects, nowadays numerical techniques like finite element method (FEM) have become indispensable tools for a broad range of applications. The present monograph provides an introduction to the essential concepts of fracture mechanics, its main goal being to procure the special techniques for FEM analysis of crack problems, which have to date only been mastered by experts. All kinds of static, dynamic and fatigue fracture problems are treated in two- and three-dimensional elastic and plastic structural components. The usage of the various solution techniques is demonstrated by means of sample problems selected from practical engineering case studies. The primary target group includes graduate students, researchers in academia and engineers in practice.
Author: Soheil Mohammadi Publisher: John Wiley & Sons ISBN: 0470697997 Category : Technology & Engineering Languages : en Pages : 280
Book Description
This important textbook provides an introduction to the concepts of the newly developed extended finite element method (XFEM) for fracture analysis of structures, as well as for other related engineering applications. One of the main advantages of the method is that it avoids any need for remeshing or geometric crack modelling in numerical simulation, while generating discontinuous fields along a crack and around its tip. The second major advantage of the method is that by a small increase in number of degrees of freedom, far more accurate solutions can be obtained. The method has recently been extended to nonlinear materials and other disciplines such as modelling contact and interface, simulation of inclusions and holes, moving and changing phase problems, and even to multiscale analyses. The book is self contained, with summaries of both classical and modern computational techniques. The main chapters include a comprehensive range of numerical examples describing various features of XFEM.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 602
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: 劉國楨
Author: 劉國楨
Author: Kwok-jing Lau
Author: J. B. Min
Author: Barry James Simon
Author: T.A. Cruse
Author: National Aeronautics and Space Administration (NASA)
Author: A. S. Kobayashi
Author: Meinhard Kuna
Author: Soheil Mohammadi
Author: