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更新时间:2024.04.27
2124铝合金TL取向疲劳裂纹扩展门槛值

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用降载法测得了2124铝合金TL取向应力比R=0.1、0.3、0.5、0.7下的疲劳裂纹扩展门槛值,用线性拟合法得到da/dN=C1ΔKn1中的C1和n1值,将其带入裂纹扩展速率da/dN-ΔK表达式中,并按标规定取疲劳裂纹扩展速率(da/dN)=10-7mm/cycle时的ΔK值为疲劳裂纹扩展门槛值ΔKth,分析了应力比对裂纹扩展门槛值的影响。

ASTMD2124-1999(R2011)

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Designation: D2124 –99 (Reapproved 2011) Standard Test Method for Analysis of Components in Poly(Vinyl Chloride) Compounds Using an Infrared Spectrophotometric Technique 1 This standard is issued under the ?xed designation D2124; the number immediately following the designation indicates the year of original adoption or, in the caseof revision, the year of last revision. A number in parenthesesind

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