机读格式显示(MARC)

• 000 01999nam 2200301 a 4500

• 000 1000108309

• 001 0000330756

• 005 20100302110250.0

• 008 091218s1982 xxua b 000 0 eng d

• 020 __ |c CNY1.30

• 040 __ |a CAU |c CAU

• 090 __ |a TG113/TJF

• 093 __ |a TG113 |2 4

• 100 1_ |a Throop, J. F.

• 245 10 |a Fracture mechanics analysis of the effects of residual stress on fatigue life / |c Joseph F.Throop.

• 260 __ |a [S.l. : |b Defense Technical Information Center], |c 1982.

• 300 __ |a 15 p. : |b ill. ; |c 26 cm.

• 500 __ |a Technical report ARLCB-TR-82020.

• 504 __ |a Includes bibliographical references.

• 520 __ |a It is re-emphasized here that the effect of residual stress in fatigue is analogous to but not the same as the mean stress effect from applied loads. The inclusion of a residual stress term in the stress intensity factor range of the fatigue crack propagation rate equation permits one to use the residual stress in calculations of fatigue life estimates. Using crack shape factors calculated for given aspect ratios of surface flaws and integrating da/dN, one obtains an equation for the S-N curve which includes the residual stress effect on fatigue performance. This process of calculation reveals that compressive residual stress has a much stronger influence on fatigue life than tensile residual stress does, mainly because the former decreases the stress intensity factor range and increases the critical crack size while the latter only decreases the critical crack size. Numerical solution of an example illustrates an application of these concepts.

• 650 _0 |a Metallurgy and Metallography

• 650 _0 |a Mechanics.

• 710 2_ |a United States. |b Army Armament Research and Development Command.

• 710 2_ |a Large Caliber Weapon Systems Laboratory (U.S.)

• 901 __022009003068

• 905 __ |a CAU |f TG113/TJF |b E0218107

• 907 __ |a CAU |f TG113/TJF |b E0218107

• 999 __ |t A |A gxr |a 20091218 15:00:16 |I gxr |i 20100302 11:02:50 |G gxr |g 20100302 11:03:0