Results 211 to 220 of about 11,860 (260)

The fatigue limits of metals

Materials Science and Engineering, 1976
Abstract Recent studies of cyclic deformation in copper single crystals have identified the critical properties of persistent slip bands, known to be the sites of crack nucleation and Stage I propagation in fatigue. From this work, it is concluded that, for almost all metals and alloys, a particular stress and strain will be required to form ...
openaire   +1 more source

The Limitations of Fatigue Testing

SAE Technical Paper Series, 2010
<div class="section abstract"><div class="htmlview paragraph">Fatigue testing of components is used to validate new product designs as well as changes made to existing designs. On new designs it is common to initially test parts at the design stage (design verification or DV) and then again at the production stage (production verification ...
openaire   +1 more source

Applicability of published data for fatigue‐limited design

Quality and Reliability Engineering International, 2006
AbstractThe use of published fatigue data provides an expedient basis for fatigue‐limited engineering design by alleviating the necessity of explicit testing. However, published fatigue data often exhibits incomplete documentation of the associated test conditions.
Martin Leary, Colin R. Burvill
openaire   +1 more source

Fatigue damage in polycrystalline copper below the fatigue limit

International Journal of Fatigue, 1994
Abstract Surface fatigue damage was studied in polycrystalline copper cycled with constant plastic strain amplitudes below the fatigue limit. Fatigue damage in this interval of cyclic loading is manifested on the surface of the material as bands of localized cyclic slip: persistent slip bands.
J POLAK, A VASEK
openaire   +1 more source

Measurement of Fatigue Limit in Silicate Glasses

2002
Some studies on sub-critical growth in glass and ceramics have shown the existence of a lower limit of the applied stress intensity factor where the crack propagation tends to zero. This is usually defined as the fatigue limit or threshold stress intensity factor (K th ).Various testing methodologies have been suggested in the past for measuring this ...
Sglavo, Vincenzo Maria, D. Green
openaire   +2 more sources

Influence of Stresses below the Fatigue Limit on Fatigue Life

Solid State Phenomena, 2014
According to the performed analysis of fatigue phenomena occurring in metals, the effects of fatigue appear in the form of lines and slip bands under loading conditions producing variable stresses with values below the fatigue limit of these metals.
openaire   +1 more source

The fatigue limit and its elimination

Fatigue & Fracture of Engineering Materials & Structures, 1999
The classical fatigue limit of ferrous metals is a consequence of testing materials at a constant range of cyclic stress and determining the cyclic stress range below which fatigue failures do not occur. This classical fatigue limit of a material is equated to the condition for which fatigue cracks can not propagate beyond microstructural barriers.This
null Miller, null O’donnell
openaire   +1 more source

Non-Propagating Fatigue Cracks: The True Fatigue Limit

1989
There are several reasons why fatigue cracks may cease to grow and hence need not be dangerous.
J. R. Yates, K. J. Miller
openaire   +1 more source

The mechanical fatigue limit for rubber

Journal of Applied Polymer Science, 1965
AbstractInvestigations of the dynamic cut growth behavior of vulcanized rubbers indicate that there is a minimum tearing energy at which mechanical rupture of chains occurs. The limiting value is characteristic of each vulcanizate, but is in the region of 0.05 kg./cm.
G. J. Lake, P. B. Lindley
openaire   +1 more source

Essential structure of S-N curve: Prediction of fatigue life and fatigue limit of defective materials and nature of scatter

International Journal of Fatigue, 2021
Kentaro Wada, Hisao Matsunaga
exaly