Measuring Shear Strain Of The Plantar Aspect During Gait Using Digital Image Correlation

2021 ◽  
Author(s):  
Sarah Crossland
Keyword(s):  
Digital Image Correlation ◽  
Shear Strain ◽  
Digital Image ◽  
Image Correlation ◽  
Plantar Aspect

Interlaminar shear strain measurement on angle-ply laminate free edge using digital image correlation

2009 ◽  
Vol 40 (12) ◽  
pp. 1911-1920 ◽  
Author(s):  
Pauline Lecomte-Grosbras ◽  
Bernard Paluch ◽  
Mathias Brieu ◽  
Géry De Saxcé ◽  
Laurent Sabatier
Keyword(s):  
Digital Image Correlation ◽  
Shear Strain ◽  
Digital Image ◽  
Strain Measurement ◽  
Free Edge ◽  
Image Correlation ◽  
Interlaminar Shear

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

2019 ◽  
Vol 2019 (3) ◽  
pp. 57-65
Author(s):  
Maciej Karny
Keyword(s):  
Shear Strength ◽  
Carbon Fiber ◽  
Digital Image Correlation ◽  
Shear Modulus ◽  
Shear Strain ◽  
Digital Image ◽  
Shear Loading ◽  
Image Correlation ◽  
Strain Gages ◽  
Plane Shear

Abstract 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.

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