Geometrically nonlinear fundamental frequencies, mode shapes and optimization aids for laminated composite rhombic stiffened hyperbolic paraboloids

Key Points

• Fundamental frequencies are influenced by geometrically nonlinear behavior in stiffened composite structures, indicating potential design benefits.
• The analysis shows varying mode shapes that depend on the composite layering strategy, crucial for enhancing performance.
• Assessment using geometrical and material parameters in laminated composites evaluates the structural dynamics accurately.
• Findings may enable improved design strategies in composite applications, highlighting needs for further optimization studies.