Table 2.
The initial imperfection measurement of test specimens and the comparison of experimental tests 42 with finite element tests and the direct strength method.
| Specimen | Initial Imperfection | PEXP | PFEM | PAS/NZS | PAS/NZS/ PEXP | PFEM / PEXP | |
|---|---|---|---|---|---|---|---|
| Local (δL) | Distortional (δD) | ||||||
| mm | kN | – | |||||
| BU45-7-1 | 0.29 | 2.46 | 124 | 126 | 114 | 0.92 | 1.02 |
| BU45-7-2 | 0.17 | 3 | 123 | 123 | 111 | 0.90 | 1.00 |
| BU45-7-3 | 0.21 | 3.38 | 121 | 121 | 109 | 0.90 | 1.00 |
| BU90-3-1 | 0.22 | 3.38 | 119 | 120 | 104 | 0.88 | 1.01 |
| BU90-3-2 | 0.17 | 4.13 | 119 | 119 | 104 | 0.87 | 1.00 |
| BU90-3-3 | 0.27 | 2.73 | 118 | 122 | 104 | 0.88 | 1.03 |
| BU105-2-1 | 0.25 | 3.3 | 117 | 117 | 100 | 0.85 | 1.00 |
| BU105-2-2 | 0.21 | 3.15 | 117 | 117 | 100 | 0.85 | 0.99 |
| BU105-2-3 | 0.23 | 2.03 | 117 | 117 | 101 | 0.86 | 1.00 |
| BU60-7-1 | 0.23 | 2 | 123 | 125 | 112 | 0.91 | 1.01 |
| BU60-7-2 | 0.17 | 3.93 | 122 | 122 | 110 | 0.90 | 1.00 |
| BU60-7-3 | 0.13 | 2.38 | 121 | 124 | 111 | 0.91 | 1.02 |
| BU110-3-1 | 0.22 | 2.75 | 117 | 118 | 99 | 0.84 | 1.00 |
| BU110-3-2 | 0.11 | 1.01 | 118 | 121 | 103 | 0.88 | 1.02 |
| BU110-3-3 | 0.24 | 2.85 | 119 | 118 | 102 | 0.86 | 0.99 |
| BU60-3-1 | 0.21 | 1.88 | 116 | 117 | 99 | 0.85 | 1.01 |
| BU60-3-2 | 0.26 | 2.5 | 117 | 120 | 99 | 0.85 | 1.03 |
| BU60-3-3 | 0.18 | 3.38 | 116 | 116 | 97 | 0.84 | 1.00 |
| Average | 0.875 | 1.008 | |||||
| S | 0.026 | 0.013 | |||||