Abstract
Firstly, we must consider the validity of the load/strength interferance model. Essentially it is concerned with load dependence events, when loads are shared by mechanical components or in a system, no matter how complex, then there will be load dependence. Most systems of engineering interest have a mechanical element, sometimes very considerable, but the degree of load dependence varies enormously.
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Abbreviations
- d:
-
damage in fatigue
- Ad:
-
an increment of damage in fatigue
- F(s):
-
probability density function of fatigue limit strength
- F :
-
mean fatigue limit stress
- L:
-
load
- L :
-
mean load
- L(s):
-
probability density function of load
- Ls:
-
load causing failure in single application
- m:
-
number of components
- N:
-
number of applications of load to cause fatigue failure
- Nf:
-
value of N for item of fatigue limit strength sf
- No:
-
constant in s - N equation
- Ns:
-
cycles causing fatigue failure at load Ls
- N(s - sf):
-
function giving cycles to failure at stress s
- n:
-
number of load applications
- P:
-
probability
- R:
-
reliability
- R(m):
-
reliability of a series system of m components
- R(n):
-
reliability after n repetitions of load
- S:
-
strength
- S :
-
mean strength
- S(s):
-
probability density function of strength
- s:
-
stress
- sf:
-
fatigue limit strength of an individual item
- σL:
-
standard deviation of load distribution
- σS:
-
standard deviation of strength distribution
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© 1983 Springer-Verlag Berlin Heidelberg
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Watson, I.A. (1983). Response to Paper on Some Special Aspects of Mechanical Reliability, by Professor A D S Carter. In: Skwirzynski, J.K. (eds) Electronic Systems Effectiveness and Life Cycle Costing. NATO ASI Series, vol 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82014-4_21
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DOI: https://doi.org/10.1007/978-3-642-82014-4_21
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-82016-8
Online ISBN: 978-3-642-82014-4
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