Research Article

Robust Optimal Design of Fiber-Reinforced Composite Cylinder with Metallic Liner

Table 4

Optimal discrete design variables for case of 0.5 mm SAE4130 liner when plastic design of SAE4130 liner is utilized.

Design variableNo uncertaintyProperty uncertaintiesMaterial uncertaintiesProperty and material uncertainties

𝑡 1   (mm) 1.40 1.00 1.80 1.60
𝑡 2   (mm) 0 . 6 0 3.00 0.80 3.20
𝑡 3   (mm) 6.00 6.00 6.00 6.00
𝑡 4   (mm) 5.00 5.80 5.60 6.00
𝑡 5   (mm) 6.00 6.00 6.00 6.00
𝜃  (deg) 55.5 42.5 53.6 51.7