Author: Tae Moon KimPublisher:
ISBN:
Category : Cracking process
Languages : en
Pages : 328
Book Description
Three Dimensional Crack Analysis by Finite Element Method with Boundary Integral Method at Crack Tip
Author: Tae Moon KimPublisher:
ISBN:
Category : Cracking process
Languages : en
Pages : 328
Book Description
Three-dimensional Analysis of Crack Growth
Author: Yaoming MiPublisher: Computational Mechanics
ISBN:
Category : Nature
Languages : en
Pages : 208
Book Description
Boundary Element Analysis in Computational Fracture Mechanics
Author: T.A. CrusePublisher: 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.
Linear and Nonlinear Crack Growth Using Boundary Elements
Author: Adrián CisilinoPublisher: Computational Mechanics
ISBN:
Category : Mathematics
Languages : en
Pages : 216
Book Description
This text provides a three dimensional Boundary Element Method for the analysis of fatigue crack problems in both linear and nonlinear fracture mechanics. Special attention is devoted to the use of singular and near-singular integrals.
Three-dimensional Analysis of Chevron-notched Specimens by Boundary Integral Method
Author: Stress-intensity Factor Equations for Cracks in Three-dimensional Finite Bodies Subjected to Tension and Bending Loads
Author: J. C. NewmanThe Virtual Crack Closure Technique: History, Approach and Applications
Author: Ronald KruegerPublisher:
ISBN:
Category :
Languages : en
Pages : 66
Book Description
An overview of the virtual crack closure technique is presented. The approach used is discussed, the history summarized, and insight into its applications provided. Equations for two-dimensional quadrilateral elements with linear and quadratic shape functions are given. Formula for applying the technique in conjuction with three-dimensional solid elements as well as plate/shell elements are also provided. Necessary modifications for the use of the method with geometrically nonlinear finite element analysis and corrections required for elements at the crack tip with different lengths and widths are discussed. The problems associated with cracks or delaminations propagating between different materials are mentioned briefly, as well as a strategy to minimize these problems. Due to an increased interest in using a fracture mechanics based approach to assess the damage tolerance of composite structures in the design phase and during certification, the engineering problems selected as examples and given as references focus on the application of the technique to components made of composite materials.
Contemporary Research in Engineering Science
Author: Romesh C. BatraPublisher: Springer Science & Business Media
ISBN: 3642800017
Category : Technology & Engineering
Languages : en
Pages : 696
Book Description
Fatigue failures occur in aerospace,marine,nuclear structures and automobile com ponents from initiation and propagation of cracks from holes,scratches or defects in the material. To design against these failures, crack propagation life and fracture strength need to be accurately predicted. It is reported in the literature, that these failures often initiate as surface cracks, corner cracks and cracks emanating from fastner holes. Such cracks are with elliptic or nearly elliptic in shapes. The deviation from elliptic shape is due to varying constraint effect along the crack front. Even in situations, when the cracks are through the thickness of the material, there would be thicknesswise variation of constraint effects leading to three dimensional nature of crack growth. Accurate predictions of the crack growth in these cases by numerical methods can be made only by solving three-dimensional boundary value problems. Empirical relationships have been developed [1] based on Linear Elastic Fracture Mechanics over years describing fatigue crack growth response. Some of these empirical relationships required modifications in the later stages, to meet the design applications. The Crack closure phenomenon discovered by Elber[2, 3] during the crack growth phase is mainly attributed to the local material yielding near the crack tip and the consequent residual plastic wake behind the crack tip. It helped considerably in understanding several aspects of fatigue crack growth and rewrite these relations.
Numerical Methods in Fracture Mechanics
Author: Anthony Roger LuxmoorePublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 696
Book Description
Author: