Author: J. H. Van Der KuurPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Crack initiation by delayed hydride cracking at a blunt flaw during a thermo/mechanical transient
Author: J. H. Van Der KuurCrack initiation by delayed hydride cracking during multiple thermo/mechanical transients - phase 6
Author: J. H. Van Der KuurCrack initiation by delayed hydride cracking (dhc) during thermo/mechanical transients
Author: J. H. Van Der KuurApplied Mechanics Reviews
Author: Application of Fracture Mechanics in Failure Assessment--2003
Author: Poh-Sang LamPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 198
Book Description
Correlation between delayed hydride cracking velocity and critical crack length from small specimens
Author: B. J. S. WilkinsPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Electrical and mechanical transients were used to simulate acoustic emission (ae) signals expected during a crack-growth experiment by temperature-pressure cycling of a pressure tube. electric noise simulated heater noise, while mechanical transients from pencil-lead breaks and ballpoint-pen impacts on a pressure tube, respectively simulated ae from crack growth and mechanical noise in an operating fuel channel. simulations were used, before cycling, to assess the method's capability to discriminate against noise, calibrate instruments for sensitivity, and interpret ae events observed during cycling. digital signal processing (dsp) techniques, using correlation and frequency analyses, were applied to digitized transients. results show that: (i) a spatial filter on the ae instrument provides about 60 db discrimination against extraneous electrical and mechanical noise, (ii) ae bursts from ballpoint-pen impacts and pencil-lead breaks, on a pressure tube, contain low (
Metals Abstracts
Author: Metals Abstracts Index
Author: Fatigue under Thermal and Mechanical Loading: Mechanisms, Mechanics and Modelling
Author: J. BressersPublisher: Springer Science & Business Media
ISBN: 9401586365
Category : Technology & Engineering
Languages : en
Pages : 497
Book Description
The International Symposium "Fatigue under Thermal and Mechanical Loading", held at Petten (The Netherlands) on May 22-24, 1995, was jointly organized by the Institute for Advanced Materials of The Joint Research Centre, E. C. , and by the Societe Fran~se de Metallurgie et de Materiaux. The fast heating and cooling cycles experienced by many high temperature components cause thermally induced stresses, which often operate in combination with mechanical loads. The resulting thermal / mechanical fatigue cycle leads to material degradation mechanisms and failure modes typical of service cycles. The growing awareness that the synergism between the combined thermal and mechanical loads can not be reproduced by means of isothermal tests, has resulted in an increasing interest in thermal and thermo-mechanical fatigue testing. This trend has been reinforced by the constant pull by industry for more performant, yet safer high temperature systems, pushing the materials to the limit of their properties. Dedicated ASTM meetings in particular have set the scene for this area of research. The proceedings of the symposium organized by D. A. Spera and D. F. Mowbray in 1975 provided a reference book on thermal fatigue which reflects the knowledge and experimental capabilities of the mid-seventies.
Advances in Life Prediction Methodology
Author: Raj MohanPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 170
Book Description
Contains 17 papers from an August 1999 conference, bringing together researchers from industry and academia to address unresolved issues in the areas of material degradation, failure, and life prediction under complex service operating conditions. Themes are fatigue, creep and fracture mechanics, cr