Stress - Strain curves According to EN 1999-1-1 Annex E
Standard
Material
UNI-EN 1999-1-1
EN AW 6063 T66
10 < t ≤ 25
γM
E
fo = fy
fMax = fu
fod
[-]
[N/mm²]
[N/mm²]
[N/mm²]
[N/mm²]
[N/mm²]
1,15
70000
180
225
156,522
195,6522
Bi-linear model
Stress-Strain Curves
250
Sress [MPa]
200
150
100
50
0
0,0
2,0
4,0
6,0
Strain [%]
8,0
10,0
12,0
Bi-linear model
Formulas
𝑓𝑜𝑟 0 ≤ ε ≤ 𝜀𝑝
σ= 𝐸𝑥ε
σ = 𝑓𝑝 + 𝐸1 𝑥 (ε 𝑥 𝜀𝑝 )
𝜀𝑢 =
𝜀𝑝 =
𝜀𝑚𝑎𝑥 =
𝐸1 =
𝑓𝑜
400
( E.1)
𝑓𝑜𝑟 𝜀𝑝 ≤ ε ≤ 𝜀𝑚𝑎𝑥
=
20,1
[%]
=
0,2236
[%]
0.5 𝑥 𝜀𝑢
=
10,050
[%]
(𝑓𝑢−𝑓𝑜)
(𝜀𝑢 −𝜀𝑝)
=
2
[N/mm²]
0.3 − 0.22 𝑥
𝑓𝑜
𝐸
( E.2)
( E.2.1.1)
Bi-linear model
s (MPa)
e
0
0,0
156,5
0,22360
195,7
10,05000
fud