Work

Evaluation of Fiber Orientation in Carbon Fiber-Reinforced Polymer Composites Using a Simple, Low-Cost Infrared Measurement System: Application to Unidirectional Carbon Fiber Composites

Year: 2025

Type: conference-paper

Abstract: Carbon fiber-reinforced polymer (CFRP) composites exhibit higher strength in the longitudinal direction than in the transverse direction of the fibers, making fiber orientation evaluation crucial. In this study, a method for evaluating fiber orientation using halogen spot-periodic heating and a non-lock-in-type infrared camera is employed and applied to a unidirectional carbon fiber composite—a CFRP composite with unidirectional continuous fibers. Consequently, the in-plane thermal diffusivity in the fiber direction is significantly higher than that in other directions. Therefore, the employed method successfully evaluates fiber orientation in unidirectional carbon fiber composites.

DOI: 10.3390/proceedings2025129020

Authors: Atsushi Akai, Yukihiro Hamada, Yasumoto Sato, Atsushi Mikuni

Institutions: Kyoto University of Education, Toyota Motor Corporation (Japan), Toyota Central Research and Development Laboratories (Japan)

Language: English

Topic: Thermography and Photoacoustic Techniques

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

OpenAlex ID: W4414307163

FWCI: 5.932

Cites: 3

Cited by: 1

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