A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates

Marco A. Pérez; Lluís Gil; Sergio Oller; Carlos A. Felippa

A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates

Marco A. Pérez, Lluís Gil, Sergio Oller, Carlos A. Felippa

Research output: Conference paper › Contribution › peer-review

Abstract

This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum approach is used to estimate the map of induced internal damage by considering the micro-structural interaction between the composite constituents and modifying their constitutive performance through a continuum damage formulation. An eigenvalue analysis is then done to determine the modal response of impacted laminates. The validity of the modeling approach to successfully reproduce the vibration response of impacted coupons is assessed through a comparison with an experimental test series conducted on a set of 48 CFRP laminated coupons. The results confirm the ability of the described approach in comparison to competing ones used to reproduce the experimentally observed behaviour.

Original language	English
Publication status	Published - 2015
Externally published	Yes
Event	20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark Duration: 19 Jul 2015 → 24 Jul 2015

Conference

Conference	20th International Conference on Composite Materials, ICCM 2015
Country/Territory	Denmark
City	Copenhagen
Period	19/07/15 → 24/07/15

Keywords

Impact Damage
Micro-Mechanical Approach
Modal Analysis

Cite this

@conference{a33bb61004404da888ceb30d9606d606,

title = "A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates",

abstract = "This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum approach is used to estimate the map of induced internal damage by considering the micro-structural interaction between the composite constituents and modifying their constitutive performance through a continuum damage formulation. An eigenvalue analysis is then done to determine the modal response of impacted laminates. The validity of the modeling approach to successfully reproduce the vibration response of impacted coupons is assessed through a comparison with an experimental test series conducted on a set of 48 CFRP laminated coupons. The results confirm the ability of the described approach in comparison to competing ones used to reproduce the experimentally observed behaviour.",

keywords = "Impact Damage, Micro-Mechanical Approach, Modal Analysis",

author = "P{\'e}rez, {Marco A.} and Llu{\'i}s Gil and Sergio Oller and Felippa, {Carlos A.}",

note = "Funding Information: This work has been supported by the European Research Council under the Advanced Grant: ERC-2012-AdG 320815 COMP-DES-MAT {"}Advanced tools for computational design of engineering materials{"} and UPC Mobility Research Grant PDI 2010. All this support is gratefully acknowledged. Special thanks also to Dr. Fernando Rastellini and Dr. Xavier Mart{\'i}nez for the collaboration, support and useful discussions. Publisher Copyright: {\textcopyright} 2015 International Committee on Composite Materials. All rights reserved.; 20th International Conference on Composite Materials, ICCM 2015 ; Conference date: 19-07-2015 Through 24-07-2015",

year = "2015",

language = "English",

}

TY - CONF

T1 - A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates

AU - Pérez, Marco A.

AU - Gil, Lluís

AU - Oller, Sergio

AU - Felippa, Carlos A.

N1 - Funding Information: This work has been supported by the European Research Council under the Advanced Grant: ERC-2012-AdG 320815 COMP-DES-MAT "Advanced tools for computational design of engineering materials" and UPC Mobility Research Grant PDI 2010. All this support is gratefully acknowledged. Special thanks also to Dr. Fernando Rastellini and Dr. Xavier Martínez for the collaboration, support and useful discussions. Publisher Copyright: © 2015 International Committee on Composite Materials. All rights reserved.

PY - 2015

Y1 - 2015

N2 - This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum approach is used to estimate the map of induced internal damage by considering the micro-structural interaction between the composite constituents and modifying their constitutive performance through a continuum damage formulation. An eigenvalue analysis is then done to determine the modal response of impacted laminates. The validity of the modeling approach to successfully reproduce the vibration response of impacted coupons is assessed through a comparison with an experimental test series conducted on a set of 48 CFRP laminated coupons. The results confirm the ability of the described approach in comparison to competing ones used to reproduce the experimentally observed behaviour.

AB - This work deals with modeling the effect of low-velocity impact damage upon the vibration response of CFRP laminates through a micro-mechanical description of the induced internal damage. The serial-parallel (SP) continuum approach is used to estimate the map of induced internal damage by considering the micro-structural interaction between the composite constituents and modifying their constitutive performance through a continuum damage formulation. An eigenvalue analysis is then done to determine the modal response of impacted laminates. The validity of the modeling approach to successfully reproduce the vibration response of impacted coupons is assessed through a comparison with an experimental test series conducted on a set of 48 CFRP laminated coupons. The results confirm the ability of the described approach in comparison to competing ones used to reproduce the experimentally observed behaviour.

KW - Impact Damage

KW - Micro-Mechanical Approach

KW - Modal Analysis

UR - http://www.scopus.com/inward/record.url?scp=85053162132&partnerID=8YFLogxK

M3 - Contribution

AN - SCOPUS:85053162132

T2 - 20th International Conference on Composite Materials, ICCM 2015

Y2 - 19 July 2015 through 24 July 2015

ER -

A micromechanical approach to modeling the effect of impact induced damage on the vibration response of CFRP laminates

Abstract

Conference

Keywords

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