10° off-axis testing of CFRP using DIC: A study on strength, strain and modulus
Abstract
For the determination of the shear properties such as strength, strain and modulus of unidirectionally reinforced composites, nearly a dozen measurement techniques exist, several of which have found their way into standards. One non-standardized method for sheet materials is the 10° off-axis tensile test of unidirectional coupons. The current work focuses on the experimental investigation of tensile testing of CFRP-UD coupon specimens using the 10° off-axis test and DIC strain mapping to measure the full-field deformation response. A sensitivity analysis on the measured stresses, strains and moduli is performed by varying the aspect ratio of the specimens and the location of strain measurement. Test related uncertainties such as the loading angle and specimen preparation details are investigated and quantified with the help of these full-field DIC measurements.
- Authors:
-
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Automotive Lightweighting (NCAL)
- Univ. of Maryland, College Park, MD (United States)
- Publication Date:
- Research Org.:
- Ford Motor Company, Detroit, MI (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1799255
- Alternate Identifier(s):
- OSTI ID: 1631335
- Grant/Contract Number:
- EE0006867
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Composites Part B: Engineering
- Additional Journal Information:
- Journal Volume: 196; Journal Issue: C; Journal ID: ISSN 1359-8368
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; Engineering; Materials Science; Intralaminar shear; Digital image correlation; FRP; UD; Sensitivity analysis
Citation Formats
Merzkirch, Matthias, and Foecke, Tim. 10° off-axis testing of CFRP using DIC: A study on strength, strain and modulus. United States: N. p., 2020.
Web. doi:10.1016/j.compositesb.2020.108062.
Merzkirch, Matthias, & Foecke, Tim. 10° off-axis testing of CFRP using DIC: A study on strength, strain and modulus. United States. https://doi.org/10.1016/j.compositesb.2020.108062
Merzkirch, Matthias, and Foecke, Tim. Fri .
"10° off-axis testing of CFRP using DIC: A study on strength, strain and modulus". United States. https://doi.org/10.1016/j.compositesb.2020.108062. https://www.osti.gov/servlets/purl/1799255.
@article{osti_1799255,
title = {10° off-axis testing of CFRP using DIC: A study on strength, strain and modulus},
author = {Merzkirch, Matthias and Foecke, Tim},
abstractNote = {For the determination of the shear properties such as strength, strain and modulus of unidirectionally reinforced composites, nearly a dozen measurement techniques exist, several of which have found their way into standards. One non-standardized method for sheet materials is the 10° off-axis tensile test of unidirectional coupons. The current work focuses on the experimental investigation of tensile testing of CFRP-UD coupon specimens using the 10° off-axis test and DIC strain mapping to measure the full-field deformation response. A sensitivity analysis on the measured stresses, strains and moduli is performed by varying the aspect ratio of the specimens and the location of strain measurement. Test related uncertainties such as the loading angle and specimen preparation details are investigated and quantified with the help of these full-field DIC measurements.},
doi = {10.1016/j.compositesb.2020.108062},
journal = {Composites Part B: Engineering},
number = C,
volume = 196,
place = {United States},
year = {Fri Sep 18 00:00:00 EDT 2020},
month = {Fri Sep 18 00:00:00 EDT 2020}
}
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