Modeling of coupled behavior and microcracking of multifunctional composite structures for energy storage

Date

2024-01-01

Author

Uyar, İmren
Gürses, Ercan

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Addressing energy storage limitations and achieving low thrust-to-weight ratios are paramount for innovation in the aerospace and automotive industries. A promising avenue lies in the multifunctionality of structural load-carrying members, mainly by incorporating energy storage capabilities. Carbon fibers, known for their exceptional mechanical and electrical properties, are ideal candidates for multifunctional applications (Adam et al., 2018). This work proposes a framework for modeling multifunctional composite materials on the micro-scale, capable of serving as both a battery cell and a load-bearing component. It utilizes carbon fibers with high mechanical and electrical properties embedded in a polymer matrix. The microstructure simulates electrochemical-mechanical behavior during charging and discharging, emphasizing crack formation in the fibers. We employ the phase field fracture model to study crack propagation and damage evolution. This study employs finite element simulations with FENICS to investigate crack-dependent ion concentrations and stress distributions.

Subject Keywords

Electro-Chemo-Mechanical Coupling, Phase Field Approach, Fracture of Composites, Multifunctional Materials, Structural Batteries

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85200940196&origin=inward
https://hdl.handle.net/11511/110772

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Department of Aerospace Engineering, Conference / Seminar