Hello, the stress and cycles required for this question is Stress 1 = 420MPa at 7 cycles, Stress 2 = 360MPa at 65 cycles and Stress 3 = 130MPa at 325 cycles. Use the first three cycles (which shows how many cycles at that stress level to failure) to calculate when the specimen will fail if it underwent test of 7 cycles at 420MPa, then undergoes 360MPa for 65 cycles and finally 130MPa at 325 cycles. Will the specimen fail? Please show calculations of failure At operating stress of 420MPa, the number of cycles to fail a specimen is 65cycles. At operating stress of 360MPa, the number of cycles to fail thespecimen is 390 cycles, and at operating stress of 130MPa, the number ofcycles to fail the specimen is 11,900 cycles. A test sequence as follows isdesigned: first, operating stress of 420MPa for 7 cycles, second, operatingstress of 360MPa for 65 cycles, and third, operating stress of 130MPa for 325cycles. Determine at what number of cycle and which operating stress levelthe specimen would be expected to fail if the above sequence is repeated.

Situation 1 Operating Stress : 420 Mpa Number of Cycle : 65 cycles Situation 2 Operating Stress :…

Answered: At operating stress of 420MPa, the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Hello, the stress and cycles required for this question is Stress 1 = 420MPa at 7 cycles, Stress 2 = 360MPa at 65 cycles and Stress 3 = 130MPa at 325 cycles. Use the first three cycles (which shows how many cycles at that stress level to failure) to calculate when the specimen will fail if it underwent test of 7 cycles at 420MPa, then undergoes 360MPa for 65 cycles and finally 130MPa at 325 cycles. Will the specimen fail? Please show calculations of failure

At operating stress of 420MPa, the number of cycles to fail a specimen is 65
cycles. At operating stress of 360MPa, the number of cycles to fail the
specimen is 390 cycles, and at operating stress of 130MPa, the number of
cycles to fail the specimen is 11,900 cycles. A test sequence as follows is
designed: first, operating stress of 420MPa for 7 cycles, second, operating
stress of 360MPa for 65 cycles, and third, operating stress of 130MPa for 325
cycles. Determine at what number of cycle and which operating stress level
the specimen would be expected to fail if the above sequence is repeated.

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