Enhancements to modeling dry fabrics for impact analysis

A. Deivanayagam, A. Vaidya, Subramaniam Rajan

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The focus of this paper is on improving the modeling of dry fabric-based systems widely used in propulsion engine containment systems. Simulations of fabrics under impact using finite elements (FEs) provide valuable insight into the mechanics of fabric behavior and its energy absorption characteristics. In this model, the fabric is treated as an equivalent continuum model composed of thin shell elements. The fabric is made of simple weave Kevlar49, whose behavior is characterized using uniaxial quasi-static and high-strain rate tension tests, picture frame tests, and friction tests. The methodology is general enough to be used with any dry fabric. Test results are used to determine the parameters used in the constitutive and FE models. The constitutive model is programmed as a user-defined material model. Details and results from FE simulations of a suite of 26 high-velocity ballistic test results are presented. Results show that the developed model provides very reasonable predictive capabilities.

Original languageEnglish (US)
Pages (from-to)484-490
Number of pages7
JournalJournal of Aerospace Engineering
Volume27
Issue number3
DOIs
StatePublished - May 1 2014

Fingerprint

Energy absorption
Ballistics
Constitutive models
Propulsion
Strain rate
Mechanics
Friction
Engines

Keywords

  • Aerospace engineering
  • Composite materials
  • Dynamic analysis
  • Finite-element method (FEM)
  • Impact loads
  • Nonlinear analysis

ASJC Scopus subject areas

  • Aerospace Engineering
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Materials Science(all)

Cite this

Enhancements to modeling dry fabrics for impact analysis. / Deivanayagam, A.; Vaidya, A.; Rajan, Subramaniam.

In: Journal of Aerospace Engineering, Vol. 27, No. 3, 01.05.2014, p. 484-490.

Research output: Contribution to journalArticle

Deivanayagam, A. ; Vaidya, A. ; Rajan, Subramaniam. / Enhancements to modeling dry fabrics for impact analysis. In: Journal of Aerospace Engineering. 2014 ; Vol. 27, No. 3. pp. 484-490.
@article{ce17258150a44726a8588cfd7e0457af,
title = "Enhancements to modeling dry fabrics for impact analysis",
abstract = "The focus of this paper is on improving the modeling of dry fabric-based systems widely used in propulsion engine containment systems. Simulations of fabrics under impact using finite elements (FEs) provide valuable insight into the mechanics of fabric behavior and its energy absorption characteristics. In this model, the fabric is treated as an equivalent continuum model composed of thin shell elements. The fabric is made of simple weave Kevlar49, whose behavior is characterized using uniaxial quasi-static and high-strain rate tension tests, picture frame tests, and friction tests. The methodology is general enough to be used with any dry fabric. Test results are used to determine the parameters used in the constitutive and FE models. The constitutive model is programmed as a user-defined material model. Details and results from FE simulations of a suite of 26 high-velocity ballistic test results are presented. Results show that the developed model provides very reasonable predictive capabilities.",
keywords = "Aerospace engineering, Composite materials, Dynamic analysis, Finite-element method (FEM), Impact loads, Nonlinear analysis",
author = "A. Deivanayagam and A. Vaidya and Subramaniam Rajan",
year = "2014",
month = "5",
day = "1",
doi = "10.1061/(ASCE)AS.1943-5525.0000350",
language = "English (US)",
volume = "27",
pages = "484--490",
journal = "Journal of Aerospace Engineering",
issn = "0893-1321",
publisher = "American Society of Civil Engineers (ASCE)",
number = "3",

}

TY - JOUR

T1 - Enhancements to modeling dry fabrics for impact analysis

AU - Deivanayagam, A.

AU - Vaidya, A.

AU - Rajan, Subramaniam

PY - 2014/5/1

Y1 - 2014/5/1

N2 - The focus of this paper is on improving the modeling of dry fabric-based systems widely used in propulsion engine containment systems. Simulations of fabrics under impact using finite elements (FEs) provide valuable insight into the mechanics of fabric behavior and its energy absorption characteristics. In this model, the fabric is treated as an equivalent continuum model composed of thin shell elements. The fabric is made of simple weave Kevlar49, whose behavior is characterized using uniaxial quasi-static and high-strain rate tension tests, picture frame tests, and friction tests. The methodology is general enough to be used with any dry fabric. Test results are used to determine the parameters used in the constitutive and FE models. The constitutive model is programmed as a user-defined material model. Details and results from FE simulations of a suite of 26 high-velocity ballistic test results are presented. Results show that the developed model provides very reasonable predictive capabilities.

AB - The focus of this paper is on improving the modeling of dry fabric-based systems widely used in propulsion engine containment systems. Simulations of fabrics under impact using finite elements (FEs) provide valuable insight into the mechanics of fabric behavior and its energy absorption characteristics. In this model, the fabric is treated as an equivalent continuum model composed of thin shell elements. The fabric is made of simple weave Kevlar49, whose behavior is characterized using uniaxial quasi-static and high-strain rate tension tests, picture frame tests, and friction tests. The methodology is general enough to be used with any dry fabric. Test results are used to determine the parameters used in the constitutive and FE models. The constitutive model is programmed as a user-defined material model. Details and results from FE simulations of a suite of 26 high-velocity ballistic test results are presented. Results show that the developed model provides very reasonable predictive capabilities.

KW - Aerospace engineering

KW - Composite materials

KW - Dynamic analysis

KW - Finite-element method (FEM)

KW - Impact loads

KW - Nonlinear analysis

UR - http://www.scopus.com/inward/record.url?scp=84898941737&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84898941737&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)AS.1943-5525.0000350

DO - 10.1061/(ASCE)AS.1943-5525.0000350

M3 - Article

VL - 27

SP - 484

EP - 490

JO - Journal of Aerospace Engineering

JF - Journal of Aerospace Engineering

SN - 0893-1321

IS - 3

ER -