TY - JOUR
T1 - Development of reliable modeling methodologies for engine fan blade out containment analysis. Part II
T2 - Finite element analysis
AU - Stahlecker, Z.
AU - Mobasher, Barzin
AU - Rajan, Subramaniam
AU - Pereira, J. M.
N1 - Funding Information:
The authors wish to thank William Emmerling, Donald Altobelli and Chip Queitzsch of the Federal Aviation Administration's Aircraft Catastrophic Failure Prevention Research Program for their support and guidance. Funding for this effort was provided by the FAA. Thanks also to Fabio Mantovani and Stefano Mazzalai of LSTC for their help in interpreting and understanding the LS-DYNA program. Finally, we wish to thank the reviewers who provided very positive feedback that has resulted in a technically improved paper.
PY - 2009/3
Y1 - 2009/3
N2 - In the first part of the paper [Naik D, Sankaran S, Mobasher B, Rajan SD, Pereira M. Development of reliable modeling methodologies for fan blade-out containment analysis. Part I: experimental studies. Int J Impact Eng, in press], details of the experiments to characterize the behavior of dry fabrics including Kevlar®49, and ballistic tests involving the fabric were presented. In this second part of the paper, we discuss the development and verification of a constitutive model for dry fabrics for use in an explicit finite element program. The developed constitutive model is implemented as a user-defined subroutine in LS-DYNA, a commercial finite element program. It is then used to simulate a suite of ballistic tests [Naik D, Sankaran S, Mobasher B, Rajan SD, Pereira M. Development of reliable modeling methodologies for fan blade-out containment analysis. Part I: experimental studies. Int J Impact Eng, in press] that replicate conditions seen in an engine fan blade out (FBO) event. A qualitative and quantitative comparison of the deformation shape of the fabric containment system and a quantitative comparison of the absorbed energy are carried out. Results indicate that the developed constitutive model provides a very encouraging start in modeling these high-speed events and could provide as Federal Aviation Administration (FAA) desires, an attractive complement to full-scale engine FBO tests.
AB - In the first part of the paper [Naik D, Sankaran S, Mobasher B, Rajan SD, Pereira M. Development of reliable modeling methodologies for fan blade-out containment analysis. Part I: experimental studies. Int J Impact Eng, in press], details of the experiments to characterize the behavior of dry fabrics including Kevlar®49, and ballistic tests involving the fabric were presented. In this second part of the paper, we discuss the development and verification of a constitutive model for dry fabrics for use in an explicit finite element program. The developed constitutive model is implemented as a user-defined subroutine in LS-DYNA, a commercial finite element program. It is then used to simulate a suite of ballistic tests [Naik D, Sankaran S, Mobasher B, Rajan SD, Pereira M. Development of reliable modeling methodologies for fan blade-out containment analysis. Part I: experimental studies. Int J Impact Eng, in press] that replicate conditions seen in an engine fan blade out (FBO) event. A qualitative and quantitative comparison of the deformation shape of the fabric containment system and a quantitative comparison of the absorbed energy are carried out. Results indicate that the developed constitutive model provides a very encouraging start in modeling these high-speed events and could provide as Federal Aviation Administration (FAA) desires, an attractive complement to full-scale engine FBO tests.
KW - Constitutive modeling
KW - Engine fan blade out containment
KW - Explicit finite element analysis
KW - Fabrics
KW - Kevlar
KW - Strain-rate effects
UR - http://www.scopus.com/inward/record.url?scp=57649219996&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57649219996&partnerID=8YFLogxK
U2 - 10.1016/j.ijimpeng.2008.08.004
DO - 10.1016/j.ijimpeng.2008.08.004
M3 - Article
AN - SCOPUS:57649219996
SN - 0734-743X
VL - 36
SP - 447
EP - 459
JO - International Journal of Impact Engineering
JF - International Journal of Impact Engineering
IS - 3
ER -