Table 2 Axial tensile test results of the grip coupler.
Index | Area (mm2) | Yield strength (N/mm2) | Ultimate strength (N/mm2) | Breaking point | Decision |
|---|---|---|---|---|---|
H16 | 198.6 | 448.1 | 680.8 | Rebar | OK |
H19 | 286.5 | 420.0 | 617.7 | Rebar | OK |
H22 | 387.1 | 516.7 | 658.1 | Rebar | OK |
H25 | 506.7 | 462.4 | 613.6 | Rebar | OK |
H29 | 642.4 | 446.0 | 584.2 | Rebar | OK |
H32 | 794.2 | 425.0 | 575.9 | Rebar | OK |
Criterion | – | – | 560 | Rebar | OK |