Influence of fiber orientation on global mechanical behavior and mesoscale strain localization in a short glass-fiber-reinforced epoxy polymer composite during tensile deformation investigated using digital image correlation

2007 ◽  
Vol 67 (11-12) ◽  
pp. 2417-2427 ◽  
Author(s):  
A. Godara ◽  
D. Raabe
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Localization ◽  
Fiber Orientation ◽  
Epoxy Polymer ◽  
Tensile Deformation ◽  
Image Correlation ◽  
Short Glass Fiber ◽  
Glass Fiber Reinforced ◽  
Short Glass

Use of Digital Image Correlation to Track Strain Evolution in Compressed Masonry Piers

2015 ◽  
Vol 732 ◽  
pp. 337-340
Author(s):  
Jakub Antoš ◽  
Václav Nežerka ◽  
Pavel Tesárek
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Localization ◽  
Material Model ◽  
Element Model ◽  
Image Correlation ◽  
Full Field ◽  
Constitutive Material Model ◽  
The Cost ◽  
Constitutive Material

In order to develop a constitutive material model and to verify its consistency when implemented in a computational code, it is necessary to understand the material and to carry out a comprehensive experimental analysis. This can be a challenging task in the case of composite materials and structures, such as masonry, when using conventional measurements. Strain gauges and allow recording strains at a limited number of discrete points and do not provide sufficient amount of data, thus increasing the cost of the analysis. From that reason a full-field non-contact measurements, such as Digital Image Correlation (DIC), became very popular and valuable for analysis of structures subjected to mechanical loading and precise detection of the onset of strain localization. The presented study deals with tracking the strain localization using DIC in the case of masonry piers loaded by the combination of bending and compression. In such case the strain localizes into more compliant mortar joints while the complete collapse occurs when the masonry blocks fail to transfer tensile stress due to transversal expansion. The obtained data will be used for the validation of a finite element model to predict the behavior of masonry structures.

scholarly journals Локализация деформации при диаметральном сжатии керамики ZrO-=SUB=-2-=/SUB=- (Y-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=-)

2019 ◽  
Vol 45 (18) ◽  
pp. 40
Author(s):  
И.Н. Севостьянова ◽  
Т.Ю. Саблина ◽  
В.В. Горбатенко ◽  
С.Н. Кульков
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Localization ◽  
Tetragonal Phase ◽  
Deformation Behavior ◽  
Temporal Patterns ◽  
Image Correlation ◽  
Diametral Compression ◽  
Microstructural Parameters ◽  
Material Volume

The deformation behavior of ZrO2-Y2O3 ceramics under diametral compression was studied using the digital image correlation. Spatial-temporal patterns of strain localization along the axis of the deformable specimen εxx (x) and across the axis of the deformable specimen εyy (y) were obtained. It has been established that the accumulation of εxx and εyy deformations when testing ceramic ZrO2 (Y2O3) samples for diametral compression is non-uniform over the sample. In this case, the microstructural parameters change, such as the size of the coherently diffracting domains (CDDs) of the tetragonal phase and microstresses, the tetragonally monoclinic transformation is realized, and this localization correlates with the fixed non-uniform of the microstresses in the material volume.

scholarly journals Локализация деформации в решетчатых структурах 3D-печатных образцов стали 03Х17Н14М2

2020 ◽  
Vol 46 (14) ◽  
pp. 9
Author(s):  
Д.Г. Фирсов ◽  
С.Д. Конев ◽  
О.Н. Дубинин ◽  
С.А. Евлашин ◽  
И.В. Шишковский
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Localization ◽  
Deformation Behavior ◽  
Image Correlation ◽  
Lattice Structures ◽  
Laser Melting ◽  
Melting Method ◽  
Order Of Magnitude ◽  
3D Printed

The digital image correlation approach was used to study the deformation behavior of 3D samples under compression conditions, created by the selective laser melting method with lattice structures made of 03X17H14M2 steel. The space-temporal patterns of strain localization of transverse - εxx and longitudinal - εyy deformations of actual types of topological structures have been studied. It was shown that it is possible to reduce the relative density by 20% for 3D printed samples with lattice G-structure and cell sizes of 1.5 and 3 mm. However, plasticity disappears, the Young's modulus decreases by an order of magnitude, and the Poisson's ratio doubles in comparison with solid 3D parts.

scholarly journals Analysis of strain localization during tensile tests by digital image correlation

2001 ◽  
Vol 41 (1) ◽  
pp. 29-39 ◽  
Author(s):  
B. Wattrisse ◽  
A. Chrysochoos ◽  
J.-M. Muracciole ◽  
M. Némoz-Gaillard
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Localization ◽  
Tensile Tests ◽  
Image Correlation

Comparison of Tensile Properties of Carbon/Epoxy Composite Materials with Different Fiber Orientation Using Digital Image Correlation

2021 ◽  
pp. 239-255
Author(s):  
Aleksandra Jelić ◽  
Milan Travica ◽  
Vukašin Ugrinović ◽  
Aleksandra Božić ◽  
Marina Stamenović ◽  
...  
Keyword(s):  
Composite Materials ◽  
Digital Image Correlation ◽  
Tensile Properties ◽  
Digital Image ◽  
Fiber Orientation ◽  
Epoxy Composite ◽  
Image Correlation
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