# Research on the Macroscopic Mechanical Property Continuum of Square Lattices Composed of Piezoelectric Laminated Zigzag Beams

## TL;DR

This paper introduces a new square lattice structure made of piezoelectric beams that can adjust its mechanical properties by changing applied voltages.

## Contribution

A new piezoelectric zigzag beam-based lattice is proposed, allowing voltage-controlled modulation of effective mechanical moduli.

## Key findings

- The effective moduli of the lattice can be tailored by adjusting voltages applied to piezoelectric layers.
- Theoretical predictions match well with finite element simulation results.
- Parametric studies show how voltage affects the mechanical properties of the lattice.

## Abstract

A novel square lattice composed of piezoelectric laminated zigzag beams positioned between each pair of adjacent nodes is proposed. Each zigzag beam is made of four piezoelectric laminated straight beams, formed by laminating a piezoelectric layer and a base layer. The effective moduli are derived by analyzing the unit cell subjected to a stress field. Voltages applied to the piezoelectric layers can be adjusted to tailor the effective moduli of the lattice without altering the microstructure. Theoretical predictions were verified by finite element simulations. Parametric analyses were conducted to examine the effects of voltage on the tailoring of effective moduli in the piezoelectric laminated zigzag beam-based square lattices.