Event
Ph.D. Research Proposal Exam: Thomas Montano
Wednesday, April 16, 2025
2:30 p.m.
AVW 2328
Maria Hoo
301 405 3681
mch@umd.edu
ANNOUNCEMENT: Ph.D. Research Proposal Exam
Name: Thomas Montano
Committee:
Professor Patrick O'Shea (Chair)
Professor Thomas Antonsen
Professor Daniel Lathrop
Date/time: Wednesday, April 16, 2025 at 2:30 pm - 4:00 pm
Location: AVW 2328
Title: Simulation and Modeling of Radiation-Induced Prompt Electrical Discharge in Electronic Space Systems
Abstract:
This proposal outlines the development and validation of a simulation model to depict prompt electrical discharge (PED) and electrical tree growth within dielectric materials, specifically focusing on polymethyl methacrylate (PMMA) under radiation exposure. Electrical treeing is a significant degradation mechanism in polymeric dielectrics commonly found in aerospace applications. It can lead to rapid and potentially catastrophic consequences due to the release of accumulated charge within the material. This phenomenon is exacerbated in radiation environments, posing a significant threat to the reliability and longevity of space-based electronic systems. Dielectric materials are essential for the insulation and functionality of components in space. Still, the risk of PED-induced failure due to electrical tree damage can lead to critical malfunctions, jeopardizing expensive equipment, mission success, and crew safety. This research aims to develop a predictive model capable of characterizing the dielectric performance and failure mechanisms under various radiation conditions, ultimately enabling more resilient space systems design. While PMMA serves as the primary material for this study due to its well-characterized properties and common use in space applications, the developed model will be adaptable to other dielectric materials, offering a generalized framework for assessing radiation-induced degradation.
