소개글
[기계공학] 파손분석-고 주기 피로 HCF(High cycle fatigue)에 대한 자료입니다.
목차
1.Fatigue Failure
2.High-cycle Fatigue
3.Case 1 : Al 2024 Fan Blade
4.Case 2 : 2124-T851 Al alloy
본문내용
Fracture
Static Loading
Brittle, Ductile, Creep Rupture
Fatigue(Dynamic Loading)
A degradation of mechanical properties leading to failure
of a material or a component under cyclic loading
High/Low cycle, Fatigue crack growth
Classification of failures according to cause
77% of failures are
generally caused
directly or indirectly
by fatigue
Process of fatigue fracture
The initiation
The propagation of fatigue crack
Catastrophic rupture
High-cycle fatigue failure
피로파손시 반복하중의 횟수가 이상일 때
고사이클 피로파손이라 함.
S-N curve
응력(S)와 반복횟수(N)과의 관계를 나타낸 선도