On quantifying dynamic behavior of architected metal/polymer TPMS/lattices-based interpenetrating phase composites

Area of Science:

• Materials Science
• Mechanical Engineering
• Computational Mechanics

Background:

• Architected materials offer tunable properties.
• Interpenetrating Phase Composites (IPCs) combine distinct material phases for enhanced performance.
• Triply Periodic Minimal Surfaces (TPMS) and lattice structures provide unique architectural possibilities.

Purpose of the Study:

• To numerically analyze architected metal/polymer IPCs.
• To investigate the effective mechanical properties and dynamic behavior of these composites.
• To compare different TPMS and lattice architectures.

Main Methods:

• Finite Element (FE) simulation was employed.
• Four TPMS/lattice architectures (gyroid, primitive, cubic, octet) were considered.
• Periodic boundary conditions were applied to compute effective properties for dynamic analysis.

Main Results:

• Effective properties of IPCs increase with volume fraction.
• Natural frequency is enhanced, and deformation is reduced with higher volume fractions.
• Comparative analysis showed advantages over conventional composites.

Conclusions:

• Architected metal/polymer IPCs exhibit superior mechanical and dynamic properties compared to conventional materials.
• The choice of TPMS/lattice architecture significantly influences composite performance.
• FE simulation is a viable tool for designing advanced composite structures.