Table 2 Statistical data for the tensile strength and yield strength of bar
From: Estimation of Failure Mode of Mortar-Filled Sleeve Rebar Splices
Bars | Mechanical properties | Statistical items*1 | Statistics *2 |
|---|---|---|---|
SD400 | Yield strength | Average (σya) | 429.3 MPa (1.094fy) |
Upper limit (σyu) | 477.0 MPa (1.216fy) | ||
Lower limit (σyl) | 381.6 MPa (0.972fy) | ||
Standard deviation | 24.3Â MPa (0.062fy) | ||
Tensile strength | Average (σua) | 625.1 MPa (1.593fy) | |
Upper limit (σuu) | 683.5 MPa (1.742fy) | ||
Lower limit (σul) | 566.6 MPa (1.444fy) | ||
Standard deviation | 29.8Â MPa (0.076fy) | ||
SD500 | Yield strength | Average (σya) | 551.3 MPa (1.124fy) |
Upper limit (σyu) | 584.0 MPa (1.191fy) | ||
Lower limit (σyl) | 518.6 MPa (1.057fy) | ||
Standard deviation | 16.6Â MPa (0.034fy) | ||
Tensile strength | Average (σua) | 711.7 MPa (1.451fy) | |
Upper limit (σuu) | 772.3 MPa (1.574fy) | ||
Lower limit (σul) | 651.1 MPa (1.328fy) | ||
Standard deviation | 30.8Â MPa (0.063fy) |