Small Crack Growth Behavior in Long Life Regime Of Aluminum Alloy 2017

Small Crack Growth Behavior in Long Life Regime Of Aluminum Alloy 2017

It is generally known that the fatigue phenomenon of non-ferrous metals such as aluminum alloys are somewhat different from those of carbon steels. For example, it has been said that the knee point of S-N curve and non-propagating cracks do not appear in these metals. However, the exact meaning of t...

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Veröffentlicht in:Nihon Kikai Gakkai ronbunshū. A 1989/10/25, Vol.55(518), pp.2124-2129
Hauptverfasser: WATANABE, Toshimi, KAWACHI, Shunichi, YAMADA, Kunihiro, KUNIO, Takeshi
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
Aluminum Alloy
Fatigue
Non-propagating Crack
S-N Curve
Small Crack
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container_end_page 2129
container_issue 518
container_start_page 2124
container_title Nihon Kikai Gakkai ronbunshū. A
container_volume 55
creator WATANABE, Toshimi
KAWACHI, Shunichi
YAMADA, Kunihiro
KUNIO, Takeshi
description It is generally known that the fatigue phenomenon of non-ferrous metals such as aluminum alloys are somewhat different from those of carbon steels. For example, it has been said that the knee point of S-N curve and non-propagating cracks do not appear in these metals. However, the exact meaning of these phenomenon still seems ambiguous growth behavior at the apparent fatigue limit (defined for N=2×107) and fatigue strength was investigated using aluminum alloy 2017 (aged and annealed). In annealed and aged aluminum alloys, non-propagating cracks can exist after repetition of (25)×107 stress cycles. This suggests the possibility of existence of fatigue limit even in aluminum alloys.
doi_str_mv 10.1299/kikaia.55.2124
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source J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Aluminum Alloy
Fatigue
Non-propagating Crack
S-N Curve
Small Crack
title Small Crack Growth Behavior in Long Life Regime Of Aluminum Alloy 2017
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