Determination of In-Plane Shear Properties of Laminate with V-Notch Rail Shear Test and Digital Image Correlation

• Autorzy: Karny Maciej

Identyfikatory

DOI

10.2478/tar-2019-0017

• Języki publikacji: EN

Abstrakty

EN

This article presents the results of the application of Digital Image Correlation (DIC) to measurements of in-plane shear modulus and strength of three different carbon fiber reinforced laminates. Three different approaches to shear strain calculations via DIC are evaluated and compared with standard strain gage measurements. Calculation of shear strain based on averaging DIC strain values of strain gages area in most cases yielded results closest to strain gages, while measurements based on single point strain measuring differed the most from strain gages. These results are attributed to shear strain distribution in the center area of the specimen. Thermoplastic matrix fabric reinforced composite had the lowest shear strength at 5% of shear strain, but the highest ultimate shear strength and strain at failure. Of thermosetting materials, laminate reinforced with unidirectional carbon fiber had shear modulus about 10% lower, than fabric reinforced laminate, but higher ultimate strength and strain at failure. This behavior is attributed to the presence of weaves in fabric reinforcing the laminate, causing shear stiffening of the material, but lowering its ability to deform under shear loading.

Słowa kluczowe

EN

digital image correlation; in-plane shear; thermoplastic laminates; v-notch rail shear

• Wydawca: Wydawnictwa Naukowe Sieci Badawczej Łukasiewicz - Instytutu Lotnictwa
• Czasopismo: Transactions on Aerospace Research
• Rocznik: 2019
• Tom: Nr 3 (256)
• Strony: 57--65
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Karny Maciej

• Composites Testing Lab, Composites Technology Center, Institute of Aviation, al. Krakowska 110/114, 02-256 Warsaw, Poland

Bibliografia

• [1] Kowalczyk P., “On applications of optical full-field strain measurements in validation and examination procedures”, Transactions of the Institute of Aviation, No. 4 (245), 2016, 46-51, DOI: 10.5604/05096669.1226354
• [2] Bajurko P., Dobrzański P., 2018, “Experimental verification of numerical calculations with the use of digital image correlation”, Transactions of the Institute of Aviation, No. 2 (251), 7-21
• [3] F. Lagattu, J. Brillaud, M.-C. Lafarie-Frenot, “High strain gradient measurements by using digital image correlation technique”, Materials Characterization, 53, 2004, 17-28, DOI: 10.1016/j. matchar.2004.07.009
• [4] Malesa M. et al., “Hybrid GI-DIC measurement procedure for hierarchical assessment of strain fields”, Measurement, Vol. 134, 2019, 83-88, DOI: 10.1016/j.measurement.2018.10.078
• [5] Kowalczyk P., 2019, “Identification of mechanical parameters of composites in tensile tests using mixed numerical-experimental method”, Measurement, Vol. 135, 2019, 131-137, DOI: 10.1016/j.measurement.2018.11.027
• [6] He Y., Makeev A., Shonkwiler B., “Characterization of nonlinear shear properties for composite materials using digital image correlation and finite element analysis”, Composites Science and Technology, 73, 2012, 64-71 DOI: 10.1016/j.compscitech.2012.09.010
• [7] Kalariya Y. et al., “Applications of digital image correlation technique in composite research”, (conference paper, 9th International Symposium on Advanced Science and Technology in Experimental Mechanics, New Delhi, India, 1-6 November 2014), DOI: 10.13140/2.1.5074.1442
• [8] Perie J. N. et al., “Digital Image Correlation and biaxial test on composite material for anisotropic damage law identification”, Int. Journal of Solids and Structures, 46, 2009, 2388-2396, DOI: 10.1016/j.ijsolstr.2009.01.025
• [9] Acciaioli A. et al., “Experimentally achievable accuracy using a digital image correlation technique in measuring small-magnitude (<0.1%) homogeneous strain fields”, Materials, 11, 2018, 751, DOI: 10.3390/ma11050751
• [10] Hufenbach W. et al., “Analysing and modelling the 3D shear damage behavior of hybrid yarn textile-reinforced thermoplastic composites”, Composite Structures, 94, 2011, 121-131, DOI: 10.1016/j.compstruct.2011.07.010
• [11] Olsson R., “A survey of test methods for multiaxial and out-of-plane strength of composite laminates”, Composites Science and Technology, 71, 2011, 773-783, DOI: 10.1016/j.compscitech.2011.01.022
• [12] Cognard J. Y, Sohier L., Davies P., “A modified Arcan test to analyze the behavior of composites and their assemblies under out-of-plane loadings”, Composites: Part A, 42, 2011, 111-121, DOI: 10.1016/j.compositesa.2010.10.012
• [13] Gude M., et al., “Modified V-notched rail shear test fixture for shear characterization of textile-reinforced composite materials”, Polymer Testing, 43, 2015, 147-153, DOI: 10.1016/j.polymertesting.2015.03.007
• [14] Adams D., “Shear testing of high-shear strength composite laminates”, Composites World, vol. 4, No.7, 2018, 10-11
• [15] Almeida J. H. S. et al., “Effect of fiber orientation on the shear behavior of glass fiber/epoxy composites”, Materials and Design, 65, 2015, 789-795, DOI: 10.1016/j.matdes.2014.10.003
• [16] Totry E. et al., “Effect of fiber, matrix and interface properties on the in-plane shear deformation of carbon-fiber reinforced composites”, Composites Science and Technology, 70, 2010, 970-980, DOI: 10.1016/j.compscitech.2010.02.014
• [17] Stanley W. F., Mallon P. J., “Intraply shear characterization of a fibre reinforced thermoplastic composite”, Composites: Part A, 37, 2006, 939-948, DOI: 10.1016/j.compositesa.2005.03.017
• [18] Standard test method for shear properties of composite materials by V-notched rail shear method, ASTM D7078/D7078M-12 (West Conshohocken, PA: ASTM International, approved July 15, 2012). DOI: 10.1520/D7078_D7078M-12
• [19] Standard test method for in-plane shear response of polymer matrix composite materials by tensile test of a ±45° laminate, ASTM D3518/D3518M-13 (West Conshohocken, PA: ASTM International, approved August 1, 2013). DOI: 10.1520/D3518_D3518M-13

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).