Show simple item record

dc.contributor.advisorFahrenthold, Eric P.en
dc.creatorHernandez, Roque Julioen
dc.date.accessioned2009-11-02T21:52:49Zen
dc.date.available2009-11-02T21:52:49Zen
dc.date.issued2009-08en
dc.identifier.urihttp://hdl.handle.net/2152/6676en
dc.descriptiontexten
dc.description.abstractThe development of improved numerical methods for computer simulation of high velocity impact dynamics is of importance in a variety of science and engineering fields. The growth of computing capabilities has created a demand for improved parallel algorithms for high velocity impact modeling. In addition, there are selected impact applications where experimentation is very costly, or even impossible (e.g. when certain bioimpact or space debris problems are of interest). This dissertation extends significantly the class of problems where particle-element based impact simulation techniques may be effectively applied in engineering design. This dissertation develops a hybrid particle-finite element method for a general hexahedral mesh. This work included the formulation of a numerical algorithm for the generation of an ellipsoidal particle set for an unstructured hex mesh, and a new interpolation kernel for the density. The discrete model is constructed using thermomechanical Lagrange equations. The formulation is validated via simulation of published impact experiments.en
dc.format.mediumelectronicen
dc.language.isoengen
dc.rightsCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en
dc.subjectHexahedral meshen
dc.subjectHigh velocity impact dynamicsen
dc.subjectComputer simulation methodsen
dc.subjectHigh velocity impact modelingen
dc.subjectUnstructured hex meshen
dc.subjectThermomechanical Lagrange equationsen
dc.subjectHybrid particle-finite element methoden
dc.titleHybrid particle-element method for a general hexahedral meshen
dc.description.departmentMechanical Engineeringen
thesis.degree.departmentMechanical Engineeringen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorThe University of Texas at Austinen
thesis.degree.levelDoctoralen
thesis.degree.nameDoctor of Philosophyen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record