On the same material as in the above problem, a fatigue loading is applied and the fatigue life is 1000 cycles. in each loading cycle, the material is first fully loaded and then fully unloaded. (a) what are the maximum stress, the minimum stress, the mean stress, the stress range (∆σ), the stress amplitude (s), and the r-raito? (b) we know that the fracture toughness of the material is 40 mpam1/2. what is the final fatigue crack length in the last loading-unloading cycle, cf? assume that the geometric factor y = 1.2.

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answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation

+15-35=-20

going in opposite directions