Research Article
On the Relation between Strength and Stiffness of Cable Tray
Table 2
Effect of materials on the strength-stiffness ratio β
| | Material | Brand | Young’s modulus, E (GPa) | Conditional yield strength, σ0.2 (MPa) | Conditional yield strain, ε0.2 (×10–3) | Strength-stiffness ratio, β |
| | Low-carbon steel | Q235 | 210 | 235 | 1.12 | 1 | | Stainless steel | 304 | 194 | 205 | 1.06 | 1.056 | | Aluminum alloy | LF21 | 69 | 50～130 | 0.725～1.88 | 0.40～1.03 | | Engineering plastics | Nylon 6 | 0.8～2.6 | ～30 | ～17.6 | ～0.064 | | Engineering plastics | PVC | 2.9～3.4 | ～30 | ～9.5 | ～0.118 |
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