Numerical modeling of engine fan blade-out events

Z. Stahlecker, S. Bansal, Barzin Mobasher, Subramaniam Rajan, I. Vintilescu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The development of a robust and reliable material model for fabrics used to prevent fan blade out events in propulsion engines has significant importance in the design of fan-containment systems. Currently Kevlar is the only fabric approved by the Federal Aviation Administration (FAA) to be used in fan-containment systems. However, very little work has been done in building a mechanistic-based material behavior model especially one that can be used to quantify the behavior of Kevlar when subjected to high-velocity projectiles. Experimental static and high strain rate tensile tests have been conducted at Arizona State University (ASU) to obtain the material properties of Kevlar fabric. In this paper we discuss the development and verification of a constitutive model for dry fabrics for use in an explicit finite element program. Results from laboratory tests such as Tension Tests including high-strain rate tests, Picture Frame Shear Tests, and Friction Tests yield most of the material properties needed to define a constitutive model. The material model is incorporated in the LS-DYNA commercial program as a user-defined subroutine. The validation of the model is carried out by numerically simulating actual ballistic tests conducted at NASA-GRC and fan blade out tests conducted at Honeywell Aerospace (Propulsion Engines).

Original languageEnglish (US)
Title of host publicationEarth and Space Conference 2008
Subtitle of host publicationProceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
StatePublished - Dec 1 2008
EventEarth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments - Long Beach, CA, United States
Duration: Mar 3 2008Mar 5 2008

Publication series

NameEarth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
Volume323

Other

OtherEarth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
CountryUnited States
CityLong Beach, CA
Period3/3/083/5/08

Keywords

  • Constitutive modeling
  • Engine fan blade out containment
  • Explicit finite element analysis
  • Fabrics
  • Kevlar
  • Strain-rate effects

ASJC Scopus subject areas

  • Building and Construction
  • Environmental Engineering

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  • Cite this

    Stahlecker, Z., Bansal, S., Mobasher, B., Rajan, S., & Vintilescu, I. (2008). Numerical modeling of engine fan blade-out events. In Earth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments (Earth and Space Conference 2008: Proceedings of the 11th Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments; Vol. 323).