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Volume 11, Issue 9 (September 2025)

Aerodynamic Study Of Composite Ti-mmc Functionally Graded Grid Fins

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Volume 12 Issue 07

July 2026

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Author(s)

Srikar Doddi Dr. Kalpana J Ph D

Abstract

Reusable Rockets Employ Grid Fins For Descent Control, But Conventional Materials Fail Under Combined Aerodynamic, Structural, And Thermal Loads. This Study Evaluates Aluminium 7075-T6, Titanium Ti-6Al-4V, And Titanium Metal Matrix Composite Functionally Graded Materials (Ti-MMC FGMs) Across Mach 0.8, 1.2, And 2.0 Using A Multi-physics ANSYS Framework. Results Show Ti-MMC FGMs Provide Up To 22% Higher Drag, 35% Lower Stresses, And 30% Reduced Deformation Compared To Titanium, While Sustaining Thermal Stability Beyond 2000 K. These Findings Establish Ti-MMC FGMs As Superior Candidates For Reusable Grid Fins In Next-generation Aerospace Systems

Keywords

Computational Fluid Dynamics Finite Element Analysis Metal Matrix Composite Functionally Graded Material Grid Fin Lattice Fin Drag Force Lift Force

Paper ID

IJSARTV11I9104043

Publication Date

September 22, 2025

Research Area

Mechanical Engineering

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