IT1237378B - Test system to rapidly determine the fatigue limit in material.
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Test system to rapidly determine the fatigue limit in material.
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IT1237378B
IT1237378BIT8806624AIT662488AIT1237378BIT 1237378 BIT1237378 BIT 1237378BIT 8806624 AIT8806624 AIT 8806624AIT 662488 AIT662488 AIT 662488AIT 1237378 BIT1237378 BIT 1237378B
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Application filed by Risitano Antonino, Geraci Alberto, Rosa Guido, CataniafiledCriticalRisitano Antonino
Priority to IT8806624ApriorityCriticalpatent/IT1237378B/en
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Publication of IT1237378BpublicationCriticalpatent/IT1237378B/en
Investigating Strength Of Materials By Application Of Mechanical Stress
(AREA)
Abstract
The method for determining a material's fatigue limit that is most reliable is the classic Wohler method. This, as noted, is based on curve construction o (applied load) in the function of N (number of cycles): o=f(N). Such a method still offers non-indifferent times. In fact when it is near to the occurring fatigue limit, the normal test device, averages 30 test hours for each specimen. Other proposed test methods that have special literature give sufficient guarantees for the reliability of the result. As indicated by these devices it is necessary to run the normal fatigue testing machines to be able to determine the fatigue limit's speed and reliability in amount of time no more than 1/10th necessary when using the classic Wohler method. The proposed solution, which has already been proved on several occasions, is based on installing sensors capable of displaying the surface temperature of the specimen during the test.
IT8806624A1988-11-281988-11-28Test system to rapidly determine the fatigue limit in material.
IT1237378B
(en)
A glass slide useful as a control of standard by having several areas of differing levels or types of analytes, and devices and methods for preparing the same
Evaluation of the-S/N- fatigue life gage under constant and variable amplitude loading(Evaluation of airframe fatigue life gage under constant and variable amplitude loading)[Final Report]
APPLICATION OF SLOW-STRAIN-RATE TESTS TO DEFINING THE STRESS FOR STRESS CORROSION CRACK INITIATION IN 70/30 BRASS, PAPER FROM ENVIRONMENT-SENSITIVE FRACTURE: EVALUATION AND COMPARISON OF TEST METHODS, AMERICAN SOCIETY FOR TESTING AND MATERIALS