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Analysis and Design of Machine Elements
book

Analysis and Design of Machine Elements

by Wei Jiang
April 2019
Intermediate to advanced content levelIntermediate to advanced
528 pages
14h 4m
English
Wiley
Content preview from Analysis and Design of Machine Elements

2 Strength of Machine Elements

Nomenclature

b
cylinder length, mm
E
elastic modulus, MPa
F
force, N
K A
service factor, or application factor
K σ
combined influence factor
k f
fatigue stress concentration factor
k t
geometric stress concentration factor
k σ
fatigue stress concentration factor in tension
k τ
fatigue stress concentration factor in shear
m
material constant
N
number of load cycles
N 0
critical number of cycles
N v
equivalent number of cycles
q
notch sensitivity factor
r
stress ratio
S
safety factor
S ca
calculated safety factor
[S]
allowable safety factor
β q
intensify factor
β σ
surface condition factor for tension
ε σ
size factor for tension
μ
Poisson's ratio
ρ
radius of curvature, mm
σ
tensile stress, MPa
σ −1
endurance limit of a material at r = −1, MPa
σ −1e
endurance limit of an element at r = −1, MPa
σ −1Nv
endurance strength at r = −1 and N = N v , MPa
σ 0
endurance limit at r = 0, MPa
σ 1,2,3
principal stresses, MPa
σ a
stress amplitude, MPa
σ b
ultimate, or tensile strength, MPa
σ ca
calculated tensile stress, MPa
σ e
equivalent stress, MPa
σ lim
material strength, MPa
σ m
mean stress, MPa
σ max
maximum stress, MPa
σ min
minimum stress, MPa
σ r
endurance limit at stress ratio r, MPa
σ rN
endurance strength at r and N, MPa
σ r∞
endurance limit, ...
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Publisher Resources

ISBN: 9781119276074Purchase book