Investigation of textile composite strength under impact and multi-axial loading using dynamic micromechanical modeling

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

Abstract

Micromechanical finite element modeling has been employed to define the failure behavior of S2 glass / BMI textile composite materials under impact loading. Dynamic explicit analysis of a representative volume element (RVE) has been performed to explore dynamic behavior and failure modes including strain rate effects, damage localization, and impedance mismatch effects. For accurate reflection of strain rate effects, differences between an applied nominal strain rate across a representative volume element (RVE) and the true realized local strain rates in regions of failure are investigated. To this end, contour plots of strain rate, as well as classical stress contours, are developed during progressive failure. Using a previously developed cohesive element failure model, interfacial failure between tow and matrix phases is considered, as well as classical failure modes such as fiber breakage and matrix microcracking. In-plane compressive and tensile loading have been investigated, including multi-axial loading cases. Highly refined meshes have been employed to ensure convergence and accuracy in such load cases which exhibit large stress gradients across the textile RVE. The effect of strain rate and phase interfacial strength have been included to develop macro-level material failure envelopes for a 2D plain weave and 3D orthogonal microgeometry.

Original languageEnglish (US)
Title of host publicationInternational SAMPE Technical Conference
StatePublished - 2012
Externally publishedYes
Event2012 SAMPE International Symposium and Exhibition - Emerging Opportunities: Materials and Process Solutions - Baltimore, MD, United States
Duration: May 21 2012May 24 2012

Other

Other2012 SAMPE International Symposium and Exhibition - Emerging Opportunities: Materials and Process Solutions
CountryUnited States
CityBaltimore, MD
Period5/21/125/24/12

Fingerprint

Strain rate
Textiles
Composite materials
Failure modes
Microcracking
Dynamic analysis
Macros
Loads (forces)
Glass
Fibers

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Investigation of textile composite strength under impact and multi-axial loading using dynamic micromechanical modeling. / Karkkainen, Ryan.

International SAMPE Technical Conference. 2012.

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

Karkkainen, R 2012, Investigation of textile composite strength under impact and multi-axial loading using dynamic micromechanical modeling. in International SAMPE Technical Conference. 2012 SAMPE International Symposium and Exhibition - Emerging Opportunities: Materials and Process Solutions, Baltimore, MD, United States, 5/21/12.
@inproceedings{30f802952fc24872bc27fe91a239593c,
title = "Investigation of textile composite strength under impact and multi-axial loading using dynamic micromechanical modeling",
abstract = "Micromechanical finite element modeling has been employed to define the failure behavior of S2 glass / BMI textile composite materials under impact loading. Dynamic explicit analysis of a representative volume element (RVE) has been performed to explore dynamic behavior and failure modes including strain rate effects, damage localization, and impedance mismatch effects. For accurate reflection of strain rate effects, differences between an applied nominal strain rate across a representative volume element (RVE) and the true realized local strain rates in regions of failure are investigated. To this end, contour plots of strain rate, as well as classical stress contours, are developed during progressive failure. Using a previously developed cohesive element failure model, interfacial failure between tow and matrix phases is considered, as well as classical failure modes such as fiber breakage and matrix microcracking. In-plane compressive and tensile loading have been investigated, including multi-axial loading cases. Highly refined meshes have been employed to ensure convergence and accuracy in such load cases which exhibit large stress gradients across the textile RVE. The effect of strain rate and phase interfacial strength have been included to develop macro-level material failure envelopes for a 2D plain weave and 3D orthogonal microgeometry.",
author = "Ryan Karkkainen",
year = "2012",
language = "English (US)",
isbn = "9781934551127",
booktitle = "International SAMPE Technical Conference",

}

TY - GEN

T1 - Investigation of textile composite strength under impact and multi-axial loading using dynamic micromechanical modeling

AU - Karkkainen, Ryan

PY - 2012

Y1 - 2012

N2 - Micromechanical finite element modeling has been employed to define the failure behavior of S2 glass / BMI textile composite materials under impact loading. Dynamic explicit analysis of a representative volume element (RVE) has been performed to explore dynamic behavior and failure modes including strain rate effects, damage localization, and impedance mismatch effects. For accurate reflection of strain rate effects, differences between an applied nominal strain rate across a representative volume element (RVE) and the true realized local strain rates in regions of failure are investigated. To this end, contour plots of strain rate, as well as classical stress contours, are developed during progressive failure. Using a previously developed cohesive element failure model, interfacial failure between tow and matrix phases is considered, as well as classical failure modes such as fiber breakage and matrix microcracking. In-plane compressive and tensile loading have been investigated, including multi-axial loading cases. Highly refined meshes have been employed to ensure convergence and accuracy in such load cases which exhibit large stress gradients across the textile RVE. The effect of strain rate and phase interfacial strength have been included to develop macro-level material failure envelopes for a 2D plain weave and 3D orthogonal microgeometry.

AB - Micromechanical finite element modeling has been employed to define the failure behavior of S2 glass / BMI textile composite materials under impact loading. Dynamic explicit analysis of a representative volume element (RVE) has been performed to explore dynamic behavior and failure modes including strain rate effects, damage localization, and impedance mismatch effects. For accurate reflection of strain rate effects, differences between an applied nominal strain rate across a representative volume element (RVE) and the true realized local strain rates in regions of failure are investigated. To this end, contour plots of strain rate, as well as classical stress contours, are developed during progressive failure. Using a previously developed cohesive element failure model, interfacial failure between tow and matrix phases is considered, as well as classical failure modes such as fiber breakage and matrix microcracking. In-plane compressive and tensile loading have been investigated, including multi-axial loading cases. Highly refined meshes have been employed to ensure convergence and accuracy in such load cases which exhibit large stress gradients across the textile RVE. The effect of strain rate and phase interfacial strength have been included to develop macro-level material failure envelopes for a 2D plain weave and 3D orthogonal microgeometry.

UR - http://www.scopus.com/inward/record.url?scp=84863933661&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84863933661&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781934551127

BT - International SAMPE Technical Conference

ER -