Table 6 Flexural properties of specimens with and without interior notches

SG15-M2

Test 1

22.26

6.75

1.27

25.03

41.54

(42.23) *

8.74

(8.32)

23.14

(24.72)

Test 2

32.40

7.38

1.12

35.03

41.52

4.35

32.37

SG15-M3

Test 1

22.92

6.95

1.10

24.44

38.97

(39.51)

6.20

(7.27)

25.91

(24.22)

Test 2

28.43

7.10

1.11

31.06

36.82

6.01

24.17

SG15-M4

Test 1

23.40

6.62

1.17

25.98

42.45

(44.90)

4.70

(6.56)

32.57

(31.09)

Test 2

28.61

7.23

1.47

36.40

43.14

1.98

38.98

HG15-M2

Test 1

37.58

10.66

1.42

44.46

74.00

(75.02)

13.33

(12.12)

45.95

(49.53)

Test 2

43.23

12.12

1.93

63.94

75.78

5.47

64.28

HG15-M3

Test 1

36.12

11.46

1.66

45.64

72.32

(73.79)

10.96

(10.36)

49.27

(51.99)

Test 2

45.40

12.29

1.45

56.81

67.33

12.32

41.41

HG15-M4

Test 1

33.00

10.43

1.50

40.30

69.28

(69.63)

10.51

(10.67)

47.16

(47.18)

Test 2

44.91

11.91

1.56

58.64

69.5

10.49

47.43

SG18-M2

Test 1

52.82

8.57

1.57

68.24

59.46

(61.33)

6.94

(6.56)

44.86

(47.54)

Test 2

58.45

9.42

1.78

77.18

52.93

5.74

40.87

SG18-M3

Test 1

54.42

8.95

1.27

64.07

55.11

(55.69)

4.58

(4.75)

45.48

(45.70)

Test 2

62.19

9.49

1.58

77.88

53.42

5.42

42.02

SG18-M4

Test 1

51.71

8.68

1.38

61.65

55.90

(56.04)

5.48

(5.44)

44.37

(44.59)

Test 2

63.81

9.37

1.46

75.47

51.76

4.91

41.42

HG18-M2

Test 1

64.97

10.48

1.26

73.91

66.27

(66.42)

9.08

(9.08)

47.17

(47.31)

Test 2

77.56

11.40

1.33

94.31

64.68

9.14

45.44

HG18-M3

Test 1

69.68

11.32

1.43

83.78

70.74

(72.83)

6.52

(7.08)

57.02

(57.94)

Test 2

85.54

11.88

1.31

100.59

68.99

11.05

45.73

HG18-M4

Test 1

67.95

11.32

1.32

78.54

70.39

(71.39)

9.56

(10.18)

50.28

(49.97)

Test 2

86.82

12.06

1.23

98.44

67.52

10.84

44.72