Answered: Calculate the count of cycles resulting…

Calculate the count of cycles resulting in breakdown. Given Crack length = 0.2 mm 3 Fracture toughness = 1708 N/mm ² Cyclic loading = 175 N/mm² Crack growth rate = 40×10-15 (AK)4 mm/cycle

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter11: Fracture And Fatigue

Section: Chapter Questions

Problem 10ETSQ

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Concept explainers

Crack Detection

Concrete materials are meant for supporting structures, building foundations and they act as several load-bearing structures. Over time, due to environmental conditions, and based on the constituent materials used, concrete materials are subjected to a great degree of distress. Corrosion of the reinforcement bars due to chemical influences, uneven base, earthquake, drying shrinkages, and alkali-aggregate reactions are some of the reasons for concrete distress.

Question

Calculate the count of cycles resulting in breakdown.
Given Crack length = 0.2 mm
3
Fracture toughness = 1708 N/mm²
Cyclic loading = 175 N/mm²
Crack growth rate = 40x10-15 (AK)4 mm/cycle
17929 cycles
38720 cycles
38920 cycles
26919 cycles

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