Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 114
Book Description
Three-dimensional Analysis of Chevron-notched Specimens by Boundary Integral Method
Author: Three-dimensional Analysis of Chevron-notched Specimens by Boundary Integral Method
Author: Louis J. GhosnThree-Dimensional Analysis of Short-Bar Chevron-Notched Specimens by the Boundary Integral Method
Author: A. MendelsonPublisher:
ISBN:
Category : Boundary integral method
Languages : en
Pages : 12
Book Description
An analysis was performed, of the three-dimensional elastic problem of the chevron-notched short-bar specimen, using the boundary integral equation method. This method makes use of boundary surface elements only in obtaining the solution. Results were obtained for various notch geometries, and included displacement and stress fields. Load line displacements, and stress-intensity factors determined both from strain calculations and compliance calculations were compared with experimental values obtained at NASA Lewis Research Center. Good agreement was obtained.
Three-dimensional Finite-element Analysis of Chevron-notched Fracture Specimens
Author: Chevron-notched Specimens, Testing and Stress Analysis
Author: John H. UnderwoodPublisher: ASTM International
ISBN: 9780803104013
Category : Technology & Engineering
Languages : en
Pages : 353
Book Description
Three-Dimensional Finite-Element Analysis of Chevron-Notched Fracture Specimens
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781725622586
Category :
Languages : en
Pages : 34
Book Description
Stress-intensity factors and load-line displacements were calculated for chevron-notched bar and rod fracture specimens using a three-dimensional finite-element analysis. Both specimens were subjected to simulated wedge loading (either uniform applied displacement or uniform applied load). The chevron-notch sides and crack front were assumed to be straight. Crack-length-to-specimen width ratios (a/w) ranged from 0.4 to 0.7. The width-to-thickness ratio (w/B) was 1.45 or 2. The bar specimens had a height-to-width ratio of 0.435 or 0.5. Finite-element models were composed of singularity elements around the crack front and 8-noded isoparametric elements elsewhere. The models had about 11,000 degrees of freedom. Stress-intensity factors were calculated by using a nodal-force method for distribution along the crack front and by using a compliance method for average values. The stress intensity factors and load-line displacements are presented and compared with experimental solutions from the literature. The stress intensity factors and load-line displacements were about 2.5 and 5 percent lower than the reported experimental values, respectively. Raju, I. S. and Newman, J. C., Jr. Langley Research Center NASA-TM-85798, NAS 1.15:85798 RTOP 505-33-23-02...
Improvement of the Structural Integrity of Ceramic Parts
Author: Bogdan VasylivPublisher: Cambridge Scholars Publishing
ISBN: 1527557634
Category : Technology & Engineering
Languages : en
Pages : 248
Book Description
In contrast to previous epochs, we live in a “new ceramic world” where advanced ceramics are engineered for specific applications. This book highlights studies in the fields of fracture mechanics and materials science as promising avenues for the quality control of ceramic products. It proposes new approaches to solving issues regarding the structural integrity of ceramic parts, namely techniques of crack initiation and retardation in ceramic parts of arbitrary shapes explaining regularities of crack retardation kinetics. It also presents a developed technique of high-temperature reduction-oxidation (redox) treatment of Ni-containing cermets for solid oxide fuel cell anodes. The book should be useful to mechanical engineers and materials scientists developing new ceramic and superhard materials and designing corresponding products of complex shapes.
Scientific and Technical Aerospace Reports
Author: 23nd Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 20, Issue 3
Author: Ersan UstundagPublisher: John Wiley & Sons
ISBN: 0470295023
Category : Technology & Engineering
Languages : en
Pages : 655
Book Description
This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.
Author: