PSI - Issue 47

Sergio Arrieta et al. / Procedia Structural Integrity 47 (2023) 13–21 Author name / Structural Integrity Procedia 00 (2019) 000–000

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Table 3 also includes the corresponding estimation of the critical loads derived from the ASED criterion (P ASED ), which are also compared graphically with the experimental results in Fig. 5.

Table 3. Experimental results and ASED predictions.

P exp (N)

P exp,avg (N)

P ASED (N)

P ASED /P exp

Specimen B

W (mm)

a (mm)

Notch radius (mm)

(mm)

P201

3789.1

2241.9

0.592

5.38

60.67

30.65 0.85

P202

3977.8

2279.0

0.573

3996.3

4.88

60.66

30.63 0.94

P203

4221.9

2289.8

0.542

4.89

60.66

30.57 0.94

P204

9062.3

4681.1

0.517

10.22 60.81

30.16 0.89

P205

8441.4

4529.7

0.537

8790.3

10.00 60.78

30.69 0.90

P206

8867.2

4502.6

0.508

10.01 60.78

30.77 0.89

P207

13343.8

8157.1

0.611

4.82

120.66 30.42 0.90

P208

12527.4

8060.3

0.643

12578.7

4.92

120.56 30.69 0.89

P209

11865.0

8014.6

0.675

4.89

120.64 30.64 0.84

P210

23525.7

16303.3 0.693

9.98

120.38 30.50 0.93

P211

22188.0

16195.0 0.730

23325.3

9.95

120.34 30.66 0.92

P212

24262.2

16241.7 0.669

9.97

120.38 30.67 0.94

P213

20.30 120.64 30.42 0.8

44627.7

32560.7 0.730

P214

20.14 120.6

30.67 0.88

43620.9

32248.7 0.739

44989.3

P215

20.23 120.52 30.28 0.90

46719.4

32752.2 0.701

3927.8

2435.8

0.620

P301

4.82

60.70

30.63 1.32

3978.5

2377.5

0.598

3957.4

P302

4.85

60.65

31.10 1.37

3965.8

2401.4

0.606

P303

4.94

60.64

30.74 1.29

8392.4

4820.0

0.574

P304

9.91

60.61

30.69 1.30

7558.2

4878.3

0.645

8157.3

P305

9.86

60.62

30.57 1.33

8521.4

4717.2

0.554

P306

10.00 60.74

31.11 1.30

12803.7

8636.8

0.675

P307

4.83

120.54 30.76 1.31

13477.4

8656.8

0.642

12837.7

P308

4.84

120.65 30.78 1.32

12232.0

8633.0

0.706

P309

4.93

120.74 30.85 1.31

23862.1

17337.9 0.727

P310

9.93

120.61 30.77 1.33

24363.4

17047.0 0.700

24416.2

P311

9.84

120.40 31.11 1.31

25023.1

17220.5 0.688

P312

9.88

120.44 30.84 1.31

It can be observed how the predictions are actually conservative (safe) estimations of the physical critical loads for the different notch radii analysed here, with P ASED /P exp ratios ranging between 0.5 and 0.75. Additional research is required to justify such conservatism. One of the factors causing this could be the fact that the ASED parameters have been calibrated from fracture results in specimens subjected to bending loads (high constraint), whereas the plates are subjected to tensile loads (low constraint).