Material

Parameters

Yield strength (YS)

UTS (N/mm²)

Stress ratio,

Elongation (%)

Rattan

Mean, μ (N/mm²)

58.46

85.35

1.46

10.00

SD, σ (N/mm²)

5.71

7.28

0.15

2.29

COV (%)

9.76

8.53

10.09

22.90

μ + 1.64σ (N/mm²)

67.82

μ − 1.64σ (N/mm²)

49.10

Range

46 - 75

8 - 14

Bamboo

Mean, μ (N/mm²)

201.14

335.23

1.67

7.42

SD, σ (N/mm²)

6.06

15.05

0.07

2.11

COV (%)

3.01

4.49

5.58

28.44

μ + 1.64σ (N/mm²)

211.09

μ − 1.64σ (N/mm²)

191.20

Range

188 - 218

4 - 10

Steel

Mean, μ (N/mm²)

442.73

540.13

1.22

14.7

SD, σ (N/mm²)

33.23

51.91

0.11

2.06

COV (%)

7.50

9.61

9.16

14.01

μ + 1.64σ (N/mm²)

497.22

μ − 1.64σ (N/mm²)

388.24

Range

354 - 541

12 - 23