Author: S. F. Duffy
Publisher: ASTM International
ISBN: 0803118643
Category : Accelerated life testing
Languages : en
Pages : 422
Book Description
Life Prediction Methodologies and Data for Ceramic Materials
Author: S. F. Duffy
Publisher: ASTM International
ISBN: 0803118643
Category : Accelerated life testing
Languages : en
Pages : 422
Book Description
Publisher: ASTM International
ISBN: 0803118643
Category : Accelerated life testing
Languages : en
Pages : 422
Book Description
Ceramic Life Prediction Methodology
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Book Description
The objective of this program was to establish a method for predicting the lifetime reliability of structural ceramic materials in high temperature applications. Fast fracture and stress rupture data were collected on two materials, a sintered silicon nitride and a lithium-aluminum-silicate. The fast fracture data was presented graphically in the form of Weibull plots of percent failed versus failure stress. Stress rupture results were presented in tabular form. Photo micrographs were presented to illustrate the fracture surfaces of fast fracture and stress rupture failures. A program of specimen development was conducted. The objective of the program was to develop processing techniques to make it possible to fabricate integral shaft spin disks suitable for hot spin testing as stress rupture specimens. The hot spin disk stress rupture results were to be used to correlate experimental time dependent failure results with analytical time dependent failure results.
Publisher:
ISBN:
Category :
Languages : en
Pages : 105
Book Description
The objective of this program was to establish a method for predicting the lifetime reliability of structural ceramic materials in high temperature applications. Fast fracture and stress rupture data were collected on two materials, a sintered silicon nitride and a lithium-aluminum-silicate. The fast fracture data was presented graphically in the form of Weibull plots of percent failed versus failure stress. Stress rupture results were presented in tabular form. Photo micrographs were presented to illustrate the fracture surfaces of fast fracture and stress rupture failures. A program of specimen development was conducted. The objective of the program was to develop processing techniques to make it possible to fabricate integral shaft spin disks suitable for hot spin testing as stress rupture specimens. The hot spin disk stress rupture results were to be used to correlate experimental time dependent failure results with analytical time dependent failure results.
Ceramic Life Prediction Methodology Final Report
Author: L. R. Swank
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 98
Book Description
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 98
Book Description
Life Prediction Methodology for Ceramic Components of Advanced Heat Engines. Phase 1
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 369
Book Description
Emphasis of this program is to develop and demonstrate ceramics life prediction methods, including fast fracture, stress rupture, creep, oxidation, and nondestructive evaluation. Significant advancements were made in these methods and their predictive capabilities successfully demonstrated.
Publisher:
ISBN:
Category :
Languages : en
Pages : 369
Book Description
Emphasis of this program is to develop and demonstrate ceramics life prediction methods, including fast fracture, stress rupture, creep, oxidation, and nondestructive evaluation. Significant advancements were made in these methods and their predictive capabilities successfully demonstrated.
Ceramic Life Prediction Methodology - Analytical Assessment of Selected Component Data
Author: L. R. Swank
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
A complete set of thermal conditions, mechanical loads, geometry as well as thermal, elastic, fast fracture, and time dependent material properties was furnished by AMMRC for the hub of a gas turbine disc. A finite element computer model was prepared for the disc from this data. The temperature and stress distributions, the fast fracture and the time dependent reliabilities were calculated. The results were presented in iso-stress and iso-thermal plots and in graphical data. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
A complete set of thermal conditions, mechanical loads, geometry as well as thermal, elastic, fast fracture, and time dependent material properties was furnished by AMMRC for the hub of a gas turbine disc. A finite element computer model was prepared for the disc from this data. The temperature and stress distributions, the fast fracture and the time dependent reliabilities were calculated. The results were presented in iso-stress and iso-thermal plots and in graphical data. (Author).
Ceramic Life Prediction Methodology - Hot Spin Disc Life Program
Author: R. R. Baker
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
Book Description
A rotating disc was designed to fail due to time dependent mechanisms. Several discs were fabricated and a previously existing test rig was developed to test the discs at the design conditions. A successful calibration test was conducted at the design condition of 2300 deg F rim temperature and 50,000 rpm. The disc failed after eight and one-half hours of steady state testing indicating that the design was successful, since the failure was due to a time dependent mechanism. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
Book Description
A rotating disc was designed to fail due to time dependent mechanisms. Several discs were fabricated and a previously existing test rig was developed to test the discs at the design conditions. A successful calibration test was conducted at the design condition of 2300 deg F rim temperature and 50,000 rpm. The disc failed after eight and one-half hours of steady state testing indicating that the design was successful, since the failure was due to a time dependent mechanism. (Author).
Life Prediction Methodology for Ceramic Components of Advanced Heat Engines, Phase 1
Author: J. C. Cuccio
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 306
Book Description
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 306
Book Description
Energy Research Abstracts
Probabilistic Aspects of Life Prediction
Life Prediction Methodology for Ceramic Components of Advanced Heat Engines. Phase 1
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 306
Book Description
This volume presents the following appendices: ceramic test specimen drawings and schematics, mixed-mode and biaxial stress fracture of structural ceramics for advanced vehicular heat engines (U. Utah), mode I/mode II fracture toughness and tension/torsion fracture strength of NT154 Si nitride (Brown U.), summary of strength test results and fractography, fractography photographs, derivations of statistical models, Weibull strength plots for fast fracture test specimens, and size functions.
Publisher:
ISBN:
Category :
Languages : en
Pages : 306
Book Description
This volume presents the following appendices: ceramic test specimen drawings and schematics, mixed-mode and biaxial stress fracture of structural ceramics for advanced vehicular heat engines (U. Utah), mode I/mode II fracture toughness and tension/torsion fracture strength of NT154 Si nitride (Brown U.), summary of strength test results and fractography, fractography photographs, derivations of statistical models, Weibull strength plots for fast fracture test specimens, and size functions.