In the present work a new damage model based on continuum damage mechanic was proposed to predict the nonlinear behavior of woven glass fiber composite under tensile test. The composite specimens were fabricated by hand lay-up method and they were put into a temperature and pressure controlled curing chamber. In order to perform the tensile test a universal Instron machine was used with the DIC method to measure the strain field during the tensile test. All orthotropic mechanical properties such as elasticity modulus, Poisson`s ratio and failure strain were calculated from experiment. After tensile test it was observed that the material behavior was brittle elastic however the stress-strain curve was exhibited a nonlinear fashion. The reason of nonlinearity assumed as irreversible damage effect during the test for instance initial void, fiber breakage, matrix cracking, delamination and fibers debonding. A new damage model with four physical meaning constants was proposed to predict the nonlinear behavior of the material. The model was implemented by a user subroutine in MSC MARC finite element software. Additionally the material damage constants were obtained from iterative numerical simulations. Moreover the damage parameters were optimized by Genetic Algorithm. In conclusion the damage model can predict the nonlinear behavior of composite in both warp and weft direction with reasonable agreement in comparing with experiment.
| Published in | Engineering and Applied Sciences (Volume 2, Issue 6) |
| DOI | 10.11648/j.eas.20170206.13 |
| Page(s) | 107-112 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2018. Published by Science Publishing Group |
Continuum Damage Mechanics, Woven Fiber Glass, Finite Element, Iterative Simulation, Orthotropic Behavior
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APA Style
Mohammad Kashfi, Gholamhossein Majzoobi, Nicola Bonora, Gianluca Iannitti, Andrew Ruggiero, et al. (2018). A New Damage Model to Predict Orthotropic Nonlinear Behavior of Woven Glass-Epoxy Composite. Engineering and Applied Sciences, 2(6), 107-112. https://doi.org/10.11648/j.eas.20170206.13
ACS Style
Mohammad Kashfi; Gholamhossein Majzoobi; Nicola Bonora; Gianluca Iannitti; Andrew Ruggiero, et al. A New Damage Model to Predict Orthotropic Nonlinear Behavior of Woven Glass-Epoxy Composite. Eng. Appl. Sci. 2018, 2(6), 107-112. doi: 10.11648/j.eas.20170206.13
AMA Style
Mohammad Kashfi, Gholamhossein Majzoobi, Nicola Bonora, Gianluca Iannitti, Andrew Ruggiero, et al. A New Damage Model to Predict Orthotropic Nonlinear Behavior of Woven Glass-Epoxy Composite. Eng Appl Sci. 2018;2(6):107-112. doi: 10.11648/j.eas.20170206.13
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Download@article{10.11648/j.eas.20170206.13,
author = {Mohammad Kashfi and Gholamhossein Majzoobi and Nicola Bonora and Gianluca Iannitti and Andrew Ruggiero and Ehsan Khademi},
title = {A New Damage Model to Predict Orthotropic Nonlinear Behavior of Woven Glass-Epoxy Composite},
journal = {Engineering and Applied Sciences},
volume = {2},
number = {6},
pages = {107-112},
doi = {10.11648/j.eas.20170206.13},
url = {https://doi.org/10.11648/j.eas.20170206.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.eas.20170206.13},
abstract = {In the present work a new damage model based on continuum damage mechanic was proposed to predict the nonlinear behavior of woven glass fiber composite under tensile test. The composite specimens were fabricated by hand lay-up method and they were put into a temperature and pressure controlled curing chamber. In order to perform the tensile test a universal Instron machine was used with the DIC method to measure the strain field during the tensile test. All orthotropic mechanical properties such as elasticity modulus, Poisson`s ratio and failure strain were calculated from experiment. After tensile test it was observed that the material behavior was brittle elastic however the stress-strain curve was exhibited a nonlinear fashion. The reason of nonlinearity assumed as irreversible damage effect during the test for instance initial void, fiber breakage, matrix cracking, delamination and fibers debonding. A new damage model with four physical meaning constants was proposed to predict the nonlinear behavior of the material. The model was implemented by a user subroutine in MSC MARC finite element software. Additionally the material damage constants were obtained from iterative numerical simulations. Moreover the damage parameters were optimized by Genetic Algorithm. In conclusion the damage model can predict the nonlinear behavior of composite in both warp and weft direction with reasonable agreement in comparing with experiment.},
year = {2018}
}
TY - JOUR T1 - A New Damage Model to Predict Orthotropic Nonlinear Behavior of Woven Glass-Epoxy Composite AU - Mohammad Kashfi AU - Gholamhossein Majzoobi AU - Nicola Bonora AU - Gianluca Iannitti AU - Andrew Ruggiero AU - Ehsan Khademi Y1 - 2018/01/12 PY - 2018 N1 - https://doi.org/10.11648/j.eas.20170206.13 DO - 10.11648/j.eas.20170206.13 T2 - Engineering and Applied Sciences JF - Engineering and Applied Sciences JO - Engineering and Applied Sciences SP - 107 EP - 112 PB - Science Publishing Group SN - 2575-1468 UR - https://doi.org/10.11648/j.eas.20170206.13 AB - In the present work a new damage model based on continuum damage mechanic was proposed to predict the nonlinear behavior of woven glass fiber composite under tensile test. The composite specimens were fabricated by hand lay-up method and they were put into a temperature and pressure controlled curing chamber. In order to perform the tensile test a universal Instron machine was used with the DIC method to measure the strain field during the tensile test. All orthotropic mechanical properties such as elasticity modulus, Poisson`s ratio and failure strain were calculated from experiment. After tensile test it was observed that the material behavior was brittle elastic however the stress-strain curve was exhibited a nonlinear fashion. The reason of nonlinearity assumed as irreversible damage effect during the test for instance initial void, fiber breakage, matrix cracking, delamination and fibers debonding. A new damage model with four physical meaning constants was proposed to predict the nonlinear behavior of the material. The model was implemented by a user subroutine in MSC MARC finite element software. Additionally the material damage constants were obtained from iterative numerical simulations. Moreover the damage parameters were optimized by Genetic Algorithm. In conclusion the damage model can predict the nonlinear behavior of composite in both warp and weft direction with reasonable agreement in comparing with experiment. VL - 2 IS - 6 ER -
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