漂泊
发表于 2025-4-1 05:38:27
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Fibroid
发表于 2025-4-1 07:22:16
Effect of simultaneous cyclic variation of stress and temperature on a high temperature material,ngines, it has so far been customary to adopt creep tests and also, occasionally, fatigue tests at high temperatures. Thus, T. and M. [.], for example, have carried out extensive bending fatigue tests on a great number of high temperature alloys at 1,200 and 1,500° F (650 and 815° C).
去才蔑视
发表于 2025-4-1 11:56:41
Physical and statistical aspects of cumulative damage,amage”, can be approached either from the point of view of a definite underlying physical process of progressive damage, or by assuming that the large number of variables known to affect the fatigue life in rather complex ways can only be dealt with summarily by simple probability considerations or,
insular
发表于 2025-4-1 15:41:25
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negotiable
发表于 2025-4-1 21:10:58
,Über Verformungserscheinungen in Stählen bei der Wechselbeanspruchung,och genauere Vorstellungen über die Bedingungen, durch die der Vorgang des Dauerbruehs oder das Auftreten der ersten Anrisse eingeleitet wird, da sowohl strukturelle Änderungen als auch Verformungserscheinungen in einem Werkstoff während der Wechselbeanspruchung eintreten. Vielfach werden daher phys
MUTED
发表于 2025-4-2 01:18:18
The effect of high loads on fatigue,ative damage rule was small. This supposition is supported by results of tests made at the Aluminium Laboratories [.] on plain aluminium alloy specimens, when a single initial stretch in axial tension slightly reduced the fatigue strength in rotating bending, the maximum reduction being 12%, see tab
大笑
发表于 2025-4-2 05:59:34
,Modifications de texture cristalline produites par des efforts alternés,entrepris [.] des essais en utilisant la méthode de focalisation des Rayons X de Guinier-Thénevin qui permet d’apprécier des variations d’orientation cristalline de l’ordre de la minute d’angle, le matériau employé étant un monocristal d’Al raffiné (99,99) soumis à des tractions ondulées. Un cristal
排他
发表于 2025-4-2 09:39:01
Fatigue of steels at constant strain amplitude and elevated temperature,sses or other high frequency stresses generally superimposed on a fairly steady mean stress. This is the type of fatigue which may occur for instance in a vibrating gas turbine blade. The complications compared with fatigue at ordinary temperatures are the influence of the temperature and of a time
cardiovascular
发表于 2025-4-2 12:07:07
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诙谐
发表于 2025-4-2 17:33:02
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