Failure Analysis of Curved Fiber Reinforced Composite Beam using State Based Peridynamics

Date

2024-12-06

Author

Haliloğlu Celiloğlu, Erhan

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Composite materials are favored for their specific stiffness and strength properties in airframe design. However, benefits obtained in lightweight and tailored design fade due to complexity in material qualification and structural analyses in airframe design. To ensure the structural integrity of an airframe, series of tests are conducted to quantify mechanical properties and design allowables for failure which are used in stress analyses. Thus, simulating structural failures has many benefits in airframe design. This thesis discusses the implementation of a state-based peridynamic model to simulate static and failure responses of fiber-reinforced composite materials. A Python program is developed using state based peridynamic formulations to obtain quasi-static response of a two-dimensional orthotropic lamina, a double cantilever beam and a curved beam experiment scenarios. Peridynamic simulations for orthotopic lamina under tensile loading and double cantilever beam experiment show great agreement with existing analytical and numerical results from literature. Peridynamic curved beam simulations agree with experimental results. The overall response of the experiment is captured with great resemblance to experimental results.

Subject Keywords

Peridynamics, Composites, Fracture Mechanics, Simulation, Curved Beam

URI

https://hdl.handle.net/11511/113002

Collections

Graduate School of Natural and Applied Sciences, Thesis