Comparative modal analysis on fishing rod made of functionally graded composite material using finite element...

Area of Science:

• Materials Science
• Mechanical Engineering
• Composite Materials

Background:

• Advanced composite materials, particularly functionally graded materials (FGM), are gaining prominence over conventional metals due to novel manufacturing techniques.
• FGMs possess unique mechanical characteristics, making them a focus for research in analytical and structural analysis.
• Existing research has explored FGMs in beams and tapered rectangular structures, but thin structures with non-uniform circular cross-sections remain under-investigated.

Purpose of the Study:

• To analyze the dynamic behavior of thin, circular, non-uniform, truncated conical sections, commonly used in fishing rods.
• To compare the static, modal, and harmonic analysis of fishing rods made from conventional steel, carbon fiber composite, and FGM.
• To evaluate the vibration suppression capabilities of FGMs in this specific structural application.

Main Methods:

• Finite element analysis was performed using ANSYS® software.
• Static analysis was conducted to assess structural response under static loads.
• Modal and harmonic analyses were performed to determine vibration characteristics and resonance behavior for steel, carbon fiber composite, and FGM.

Main Results:

• Maximum deflection at resonance was significantly lower for FGM (0.032 mm) compared to steel (7.94 mm) and carbon fiber composite (74.4 mm).
• FGMs exhibited excellent vibration suppression performance across the analyzed frequency ranges (0-900 Hz).
• The study identified specific frequency ranges for modal and harmonic analysis for each material: Steel (0-600 Hz), Carbon Fiber (0-850 Hz), and FGM (0-900 Hz).

Conclusions:

• Functionally graded materials offer superior vibration damping properties for thin, non-uniform circular structures like fishing rods.
• FGMs present a promising alternative to conventional materials for applications requiring effective vibration control.
• The findings support the efficient utilization of FGM in thin structures with non-uniform circular profiles for future applications.