Author: Giovanni CavalliniPublisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 12
Book Description
Evaluation of Stress Intensity Factors by a Self-adaptive Finite Element Scheme
Author: Giovanni CavalliniPublisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 12
Book Description
A Re-evaluation of Finite-element Models and Stress-intensity Factors for Surface Cracks Emanating from Stress Concentrations
Author: Evaluation of Stress-Intensity Factors Using General Finite-Element Models
Author: IS. RajuPublisher:
ISBN:
Category : Bruchmechanik
Languages : en
Pages : 25
Book Description
Finite-element methods are commonly used to evaluate cracked solids. Post-processing methods are used to extract Mode I stress-intensity factor values from finite-element analyses. These methods include the Crack-Opening-Displacement (COD) method, the Force method, the Virtual Crack Closure Technique (VCCT) and the Equivalent Domain Integral (EDI) method. The COD method, Force method and the VCCT appear to require that the finite-element mesh intersect the crack front in an orthogonal manner in order to obtain accurate stress-intensity factor values. The EDI does not appear to require this orthogonality with the crack front to obtain accurate stress intensity factor values. The objectives of this study are to determine if accurate stress intensity factor values can be obtained from finite-element models that lack orthogonality with the crack front and, if accurate values cannot be obtained, to modify the extraction methods so that accurate stress-intensity factor values can be obtained from models without orthogonality at the crack front.
Evaluation of Bimaterial Stress Intensity Factors Using the Finite Element-boundary Element Alternating Method
Author: Siddhartha LahiriCalculation of stress intensity factors using the finite element method
Author: Susanna Pujol LurbeHierarchical Finite Elements for Stress Concentration and Stress Singularity Problems
Author: Harvinder S. SidhuPublisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 180
Book Description
Use of Special Finite Element to Evaluate Stress Intensity Factors at the Tip of a Notch in an Isotropic Solid
Author: Shmuel Khorsand NikfarjamPublisher:
ISBN:
Category :
Languages : en
Pages : 90
Book Description
Evaluation of Weight Functions, Stress Intensity Factors, and Energy Release Rates for Two-dimensional Anisotropic Structures by the Alternating Finite Element Method, the Virtual Crack Extension Technique, and the Equivalent Domain Integral Method
Author: Kuan-Luen ChenPublisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 390
Book Description
Scientific and Technical Aerospace Reports
Author: The Calculation of Stress Intensity Factors Using the Finite Element Method with Cracked Elements
Author: Esben ByskovPublisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
The calculation of stress intensity factors for complicated crack configurations in finite plates usually presents substantial difficulty. A version of the finite element method solves such problems approximately by means of special cracked elements. A general procedure for evaluating the stiffness matrix of a cracked element is developed, and numerical results obtained by the simplest elements are compared with those provided by other methods. (Author).