Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 88
Book Description
Elastic-plastic Finite Element Analysis of Fatigue Crack Growth in Mode 1 and Mode 2 Conditions
Author: Elastic-plastic Finite Element Analyses of Fatigue Crack Growth in Mode I and Mode II Conditions
Author: Satyanadham AtluriPublisher:
ISBN:
Category : Deformations (Mechanics)
Languages : en
Pages :
Book Description
Scientific and Technical Aerospace Reports
Author: Fracture Mechanics and Crack Growth
Author: Naman RechoPublisher: John Wiley & Sons
ISBN: 111856328X
Category : Technology & Engineering
Languages : en
Pages : 347
Book Description
This book presents recent advances related to the following two topics: how mechanical fields close to material or geometrical singularities such as cracks can be determined; how failure criteria can be established according to the singularity degrees related to these discontinuities. Concerning the determination of mechanical fields close to a crack tip, the first part of the book presents most of the traditional methods in order to classify them into two major categories. The first is based on the stress field, such as the Airy function, and the second resolves the problem from functions related to displacement fields. Following this, a new method based on the Hamiltonian system is presented in great detail. Local and energetic approaches to fracture are used in order to determine the fracture parameters such as stress intensity factor and energy release rate. The second part of the book describes methodologies to establish the critical fracture loads and the crack growth criteria. Singular fields for homogeneous and non-homogeneous problems near crack tips, v-notches, interfaces, etc. associated with the crack initiation and propagation laws in elastic and elastic-plastic media, allow us to determine the basis of failure criteria. Each phenomenon studied is dealt with according to its conceptual and theoretical modeling, to its use in the criteria of fracture resistance; and finally to its implementation in terms of feasibility and numerical application. Contents 1. Introduction. Part 1: Stress Field Analysis Close to the Crack Tip 2. Review of Continuum Mechanics and the Behavior Laws. 3. Overview of Fracture Mechanics. 4. Fracture Mechanics. 5. Introduction to the Finite Element Analysis of Cracked Structures. Part 2: Crack Growth Criteria 6. Crack Propagation. 7. Crack Growth Prediction in Elements of Steel Structures Submitted to Fatigue. 8. Potential Use of Crack Propagation Laws in Fatigue Life Design.
Finite Element Elastic-Plastic Analysis of Cracks
Author: Satya N. AtluriPublisher:
ISBN:
Category :
Languages : en
Pages : 46
Book Description
This is a summary of research performed in the areas: (a) development of two-dimensional hybrid finite element procedures to calculate stress intensity factors corresponding to general r to the minus alpha stress singularities in isotropic as well as anistropic materials; (b) study of the convergence of the assumed displacement hybrid finite element procedure in fracture mechanics problems; (c) development of a three-dimensional hybrid finite element procedure to calculate the elastic combined mode stress-intensity factors K1, K2 and K3 that vary along an arbitrarily curved three-dimensional crack front; (d) hybrid finite element solutions of fundamental three-dimensional crack problems; (e) development of a two-dimensional finite element procedure for analyzing plane problems of fracture involving large-scale yielding conditions and under cyclic loading; (f) study of the J-integral as a ductile fracture initiation condition; (g) studies of finite deformation effects near the crack-tip; (h) analysis of stable crack growth under rising load and study of criteria for loss of stability of growth in ductile materials; and (i) elastic-plastic analysis of effects of crack closure on fatigue crack growth rates. (Author).
Applied mechanics reviews
Author: Nonlinear Fracture Mechanics: Time-dependent fracture
Author: Ashok SaxenaPublisher: ASTM International
ISBN: 0803111746
Category : Creep
Languages : en
Pages : 480
Book Description
Japanese Science and Technology, 1983-1984
Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information BranchPublisher:
ISBN:
Category : Science
Languages : en
Pages : 1080
Book Description
NASA Technical Memorandum
Author: Configurational Forces as Basic Concepts of Continuum Physics
Author: Morton E. GurtinPublisher: Springer Science & Business Media
ISBN: 0387226567
Category : Science
Languages : en
Pages : 248
Book Description
Included is a presentation of configurational forces within a classical context and a discussion of their use in areas as diverse as phase transitions and fracture.