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Table 4 Overview on repetitive impact campaign on grinded steel substrates (H-shaped specimen in Charpy machine)

From: Adhesive bonding of measurement equipment on impact-driven offshore monopile foundations

Experiment no Impact hammer type Number of blows Failure in specific type of adhesive layer
1 P1 (2 kg hammer) 54 No failure
2 P2 (6.6 kg hammer) 23 Auxiliary bonding
3 P2 2 Auxiliary bonding
3a (repaired aux. bond) P2 (2nd run) 18 Thick film adhesive layer
4 P2 1 Auxiliary bonding
4a (repaired aux. bond) P2 (2nd run) 11 Thick film adhesive layer
5 P2 38 Thick film adhesive layer
6 P2 4 Auxiliary bonding
7 P2 32 Thick film adhesive layer
8 P2 19 Thick film adhesive layer
9 P2 7 Both types of adhesive layer
10 P2 2 Both types of adhesive layer
11 P2 9 Both types of adhesive layer
12 P2 10 Both types of adhesive layer