Analysis for cyclic loading
according to EN 13445-3
Input data
Time point 1
Time point 2
Stress components
σ
x
N/mm²
σ
y
N/mm²
σ
z
N/mm²
τ
xy
N/mm²
τ
yz
N/mm²
τ
zx
N/mm²
Maximum cycle temperature
t
°C
Material group
ferrit
austenit
R
p
N/mm²
Tensile strength at room temperature
R
m20
N/mm²
Loadings type
mechanical
thermal without discontinues
Surface roughness
R
z
µm
Actual wall thickness
e
n
mm
Welded joint class
not welded
class 100
class 90
class 80
class 71
class 63
class 56
class 50
class 45
class 40
class 32
see Table 18-4
Calculation theory
shear stress theory
deformation energy theory
Calculate
Calculation
Decisive calculation temperature
t*
°C
R
p
/t*
N/mm²
Reference stress amplitude
Δσ
N/mm²
Surface influence factor
f
s
wall thickness influence factor
f
e
Mean stress influence factor
f
m
Temperature influence factor
f
t*
k
e/v
– factor
k
e/v
Results
Permissible load cycles number
N
all
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