Estimation of damping characteristics and optimization of curvilinear fiber shapes for composites fabricated by electrodeposition resin molding

Abstract

The effect of both curvilinear fiber orientation and thickness distribution on modal damping of carbon fiber reinforced plastics (CFRP) fabricated by electrodeposition resin molding (ERM) was investigated. Tailored fiber placement (TFP) was used to manufacture carbon fiber (CF) performs with continuous curvilinear fiber paths or variable-axial properties. The damping of composites was calculated using the concept of specific damping capacity (SDC). Fiber shapes was optimized to maximize the first modal SDC using particle swarm optimization (PSO). As a result, the optimum fiber shape improves both the first natural frequency and modal SDC in comparison with several unidirectional fiber shapes.

Keywords:

• Composite materials
• tailored fiber placement
• electrodeposition resin molding
• vibration
• damping
• optimization
• variable-axial stiffness

Author’s contribution

Shinya Honda: Conceptualization, Funding acquisition, Project administration, Writing - original draft; Hiraku Takisawa: Data analysis, Numerical calculation, Experiment, Writing - original draft; Ryo Takeda: Writing – review & editing; Katsuhiko Sasaki: Supervision; Kazuaki Katagiri: Writing – review, Supervision.

Disclosure Statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this article.

Additional information

Funding

This work was supported by JSPS KAKENHI Grant Number 20H02094.