Computer simulations modeling electrostatic behavior were used to simulate dielectric breakdown problems. These simulations modeled composite dielectric and conducting structures to see how much voltage difference or charge accumulation could occur before dielectric breakdown occurred in an air region. Two different computer codes were used for the analysis; EMSolve and BEMSTER. EMSolve, an existing LLNL internal finite element code, requires that a complete volume mesh of the problem be constructed. BEMSTER, a boundary-element code, was developed from an extension of the FEMSTER libraries which power EMSolve. The boundary-integral code offers the advantages of solving for accumulated charge and maximum electric …
continued below
Publisher Info:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
Place of Publication:
Livermore, California
Provided By
UNT Libraries Government Documents Department
Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.
Descriptive information to help identify this report.
Follow the links below to find similar items on the Digital Library.
Description
Computer simulations modeling electrostatic behavior were used to simulate dielectric breakdown problems. These simulations modeled composite dielectric and conducting structures to see how much voltage difference or charge accumulation could occur before dielectric breakdown occurred in an air region. Two different computer codes were used for the analysis; EMSolve and BEMSTER. EMSolve, an existing LLNL internal finite element code, requires that a complete volume mesh of the problem be constructed. BEMSTER, a boundary-element code, was developed from an extension of the FEMSTER libraries which power EMSolve. The boundary-integral code offers the advantages of solving for accumulated charge and maximum electric field directly, and of only requiring a surface mesh. However, because it does not automatically solve for the voltage and electric field everywhere in space, post-processing and visualization are slightly more difficult than with EMSolve. Both codes were compared to several analytical solutions, and then applied to the structures of interest. Both codes showed good agreement with the analytic solution and with each other.
This report is part of the following collection of related materials.
Office of Scientific & Technical Information Technical Reports
Reports, articles and other documents harvested from the Office of Scientific and Technical Information.
Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.
Fasenfest, B & White, D.Electrostatic Breakdown Analysis using EMsolve and BEMSTER,
report,
May 27, 2005;
Livermore, California.
(https://digital.library.unt.edu/ark:/67531/metadc877220/:
accessed July 11, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.