Defense Date
2025
Document Type
Dissertation
Degree Name
Doctor of Philosophy
Department
Mechanical and Nuclear Engineering
First Advisor
Ibrahim Guven
Abstract
This work focused on establishing a computational strategy to model airborne particle (e.g. rain drop, ice) impact on aerospace materials at high-speeds in supersonic and hypersonic regimes. To achieve this goal, strain-rate dependent material models, namely Johnson-Cook and Johnson-Holmquist-Beissel, are incorporated into a non-ordinary state-based peridynamics framework. Validations and verifications were performed for benchmark shock-physics problems that present large deformation and material failure for ductile metals and brittle ceramics. A fluid-structure interaction framework was implemented by coupling the developed structural peridynamics solver with an immersed boundary method-based computational fluid dynamics solver to further investigate the effect of coupling mechanisms for water droplet impact on metallic targets. The resulting high-fidelity solutions highlighted the importance of full-coupling effects in the hypersonic regime. Finally, the applicability of the modeling approach was demonstrated on hypersonic weather encounter problems with a carbon-carbon composite which is a very relevant aerospace material with a high-temperature resistance.
Rights
© The Author
Is Part Of
VCU University Archives
Is Part Of
VCU Theses and Dissertations
Date of Submission
12-15-2025
Included in
Aerospace Engineering Commons, Materials Science and Engineering Commons, Mechanical Engineering Commons