Date of Award
Summer 1999
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Mechanical & Aerospace Engineering
Program/Concentration
Aerospace Engineering
Committee Director
Chuh Mei
Committee Director
Norman F. Knight
Committee Member
Donald L. Kunz
Call Number for Print
Special Collections; LD4331.E535 L39
Abstract
Impact and penetration events for uncontained engine debris on fuselage skins are simulated using the LS-DYNA3D finite element analysis code. The LS-DYNA3D code is a nonlinear transient dynamic simulation tool with contact algorithms for impact. A finite element analysis is used to simulate the penetration of aluminum plates impacted by titanium impactors on aircraft-like skin panels. By gaining a more comprehensive understanding of this dynamic impact event, this work is meant to contribute to improving designs for damage tolerance and residual strength by providing modeling and analysis guidelines for the analyst.
Parametric studies are performed to determine the influence of various modeling and physical factors on the structural response. LS-DYNA3D is used to model the impactor, test frame and target plate. Modeling factors include the tied-nodes-with- failure and element-erosion modeling strategies for penetration, mesh refinement near impactor and target plate and contact surface modeling. Physical factors include initial velocity of the impactor, material damage models, and mass of the impactor. The effects of mesh refinement, contact modeling, and impactor pitch and roll angles are studied.
Rights
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DOI
10.25777/sece-fy47
Recommended Citation
Lawson, Robin E..
"LS-DYNA3D Modeling and Simulation for Uncontained Engine Debris Impact on Fuselage Skins"
(1999). Master of Science (MS), Thesis, Mechanical & Aerospace Engineering, Old Dominion University, DOI: 10.25777/sece-fy47
https://digitalcommons.odu.edu/mae_etds/590
Included in
Aeronautical Vehicles Commons, Computational Engineering Commons, Structures and Materials Commons