Session: 01-03-01: Advanced Manufacturing for Aerospace Structures

Paper Number: 108455

108455 - Manufacturing of Fiber Reinforced Polymer Composites With Embedded Sma Wires: Challenges and Opportunities 

Fiber reinforced polymer (FRP) composites have been used in various industries such as aerospace, automotive, and marine due to their high specific strength and stiffness. Shape memory alloy (SMA) wires are very promising materials with unique properties that can add functionalities to the FRP composites. One of the SMA properties is the shape-memory effect, where the SMAs are able to deform at low temperatures and return to a memorized shape upon heating. Another SMA property is their superelasticity, where SMAs are able to undergo large recoverable strains (i.e., up to about 15%). Both of these SMA properties originate from thermomechanical-phase transformation between a higher symmetry crystalline structure to a lower one, contributing to high energy dissipation capacity of SMA. Therefore, SMAs can be an excellent candidate to add damping and energy absorption functionalities to fiber FRP composites. However, FRP composites with embedded SMA wires are rarely used in commercial products due to several manufacturing challenges which leads to debonding at the metal–polymer interface, and thus, degrade the structural integrity of composites. This paper investigates the limitations and key challenges in the fabrication of multifunctional composites by integrating SMA wires into FRP composites. Moreover, the effect of wire configurations and the robustness of the structural performance of fabricated composites are explored.

Presenting Author: Maya Pishvar California State University, Northridge

Presenting Author Biography: NA

Authors:

Maya Pishvar California State University Northridge
Daniel Sanchez California State University, Northridge
Peter L. Bishay California State University, Northridge