Experimental Mechanics

, Volume 7, Issue 5, pp 193–201 | Cite as

Radiation effects on creep rupture and fatigue strength of pure aluminum

Purpose of investigation is to study experimentally the effect of nuclear radiation for the ratios of alternating stress to mean stress ranging from zero to infinity
  • S. Y. Zamrik
  • L. W. Hu


Paper describes an experimental investigation on the effect of nuclear radiation on the creep rupture and fatigue strength of pure aluminum for the ratios of alternating stress to mean stress ranging from zero to infinity. It was found that not only was the strength of the material tested affected by radiation over a range of ratios of stresses, but also the brittle-ductile transition was influenced.

Based upon the experimental results obtained, an analytical model was developed to correlate creep rupture, fatigue strength and radiation effect for various ratios of stresses. This information may prove to be valuable in dealing with the stress analysis of nuclear reactors.


Radiation Aluminum Fatigue Mechanical Engineer Fluid Dynamics 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



stress rupture, psi


completely reversible stress, psi


alternating fatigue stress, psi


static mean stress, psi


time to rupture, hr


number of cycles to failure


integrated fast neutron flux, nvt


stress ratio =\(\frac{{\sigma _a }}{{\sigma _m }}\)


σ m + σ a , maximum stress, psi


yield stress


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Copyright information

© Society for Experimental Mechanics, Inc. 1967

Authors and Affiliations

  • S. Y. Zamrik
    • 1
  • L. W. Hu
    • 1
  1. 1.Department of Engineering MechanicsThe Pennsylvania State UniversityUniversity Park

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