Quantitative validation of carbon-fiber laminate low velocity impact simulations
Abstract
Simulations of low velocity impact with a flat cylindrical indenter upon a carbon fiber fabric reinforced polymer laminate are rigorously validated. Comparison of the impact energy absorption between the model and experiment is used as the validation metric. Additionally, non-destructive evaluation, including ultrasonic scans and three-dimensional computed tomography, provide qualitative validation of the models. The simulations include delamination, matrix cracks and fiber breaks. An orthotropic damage and failure constitutive model, capable of predicting progressive damage and failure, is developed in conjunction and described. An ensemble of simulations incorporating model parameter uncertainties is used to predict a response distribution which is then compared to experimental output using appropriate statistical methods. Lastly, the model form errors are exposed and corrected for use in an additional blind validation analysis. The result is a quantifiable confidence in material characterization and model physics when simulating low velocity impact in structures of interest.
- Authors:
-
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1236477
- Alternate Identifier(s):
- OSTI ID: 1396754
- Report Number(s):
- SAND-2015-3964J; SAND-2015-3367J
Journal ID: ISSN 0263-8223; PII: S0263822315008764
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Composite Structures
- Additional Journal Information:
- Journal Volume: 135; Journal Issue: C; Journal ID: ISSN 0263-8223
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; carbon fiber; delamination; impact behavior; finite element analysis; statistical methods
Citation Formats
English, Shawn A., Briggs, Timothy M., and Nelson, Stacy M. Quantitative validation of carbon-fiber laminate low velocity impact simulations. United States: N. p., 2015.
Web. doi:10.1016/j.compstruct.2015.09.033.
English, Shawn A., Briggs, Timothy M., & Nelson, Stacy M. Quantitative validation of carbon-fiber laminate low velocity impact simulations. United States. https://doi.org/10.1016/j.compstruct.2015.09.033
English, Shawn A., Briggs, Timothy M., and Nelson, Stacy M. Sat .
"Quantitative validation of carbon-fiber laminate low velocity impact simulations". United States. https://doi.org/10.1016/j.compstruct.2015.09.033. https://www.osti.gov/servlets/purl/1236477.
@article{osti_1236477,
title = {Quantitative validation of carbon-fiber laminate low velocity impact simulations},
author = {English, Shawn A. and Briggs, Timothy M. and Nelson, Stacy M.},
abstractNote = {Simulations of low velocity impact with a flat cylindrical indenter upon a carbon fiber fabric reinforced polymer laminate are rigorously validated. Comparison of the impact energy absorption between the model and experiment is used as the validation metric. Additionally, non-destructive evaluation, including ultrasonic scans and three-dimensional computed tomography, provide qualitative validation of the models. The simulations include delamination, matrix cracks and fiber breaks. An orthotropic damage and failure constitutive model, capable of predicting progressive damage and failure, is developed in conjunction and described. An ensemble of simulations incorporating model parameter uncertainties is used to predict a response distribution which is then compared to experimental output using appropriate statistical methods. Lastly, the model form errors are exposed and corrected for use in an additional blind validation analysis. The result is a quantifiable confidence in material characterization and model physics when simulating low velocity impact in structures of interest.},
doi = {10.1016/j.compstruct.2015.09.033},
journal = {Composite Structures},
number = C,
volume = 135,
place = {United States},
year = {Sat Sep 26 00:00:00 EDT 2015},
month = {Sat Sep 26 00:00:00 EDT 2015}
}
Web of Science
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Works referencing / citing this record:
Progressive damage modeling and optimization of fibrous composites under ballistic impact loading
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