Uniaxial compression analysis of glassy polymer networks using digital image correlation

2010 ◽  
Vol 29 (8) ◽  
pp. 925-932 ◽  
Author(s):  
Stephen R. Heinz ◽  
Jeffrey S. Wiggins
Keyword(s):  
Digital Image Correlation ◽  
Uniaxial Compression ◽  
Digital Image ◽  
Glassy Polymer ◽  
Polymer Networks ◽  
Image Correlation

Fluid ingress strain analysis of glassy polymer networks using digital image correlation

2012 ◽  
Vol 31 (8) ◽  
pp. 1131-1139 ◽  
Author(s):  
Matthew B. Jackson ◽  
Stephen R. Heinz ◽  
Jeffrey S. Wiggins
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Glassy Polymer ◽  
Polymer Networks ◽  
Strain Analysis ◽  
Image Correlation

scholarly journals Brief communication: Full-field deformation measurement for uniaxial compression of sea ice by using the digital image correlation method

2019 ◽  
Author(s):  
Anliang Wang ◽  
Zhijun Wei ◽  
Xiaodong Chen ◽  
Shunying Ji ◽  
Yu Liu ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Sea Ice ◽  
Uniaxial Compression ◽  
Digital Image ◽  
Correlation Method ◽  
Nonlinear Behavior ◽  
Image Correlation ◽  
Mechanical Behaviors ◽  
Full Field

Abstract. We took advantage of digital image correlation to measure the full-field deformation of sea ice in a uniaxial compression experiment in situ. The characteristics of failure mode, nonlinear behavior and crack propagation are all captured by the strain field of specimens. To our knowledge, this is the first attempt to experimentally capture sequential full-field deformations in the mechanical properties of sea ice. This achievement will extend the ability to further explore the complex mechanical behaviors of sea ice.

scholarly journals Localized Strain Analysis of Ce- and Mg-Treated Cast Iron under Uniaxial Compression

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1638
Author(s):  
Subhojit Chakraborty ◽  
Joseph Indeck ◽  
Philipp Steinmetz ◽  
Jessica Friess ◽  
Kavan Hazeli ◽  
...  
Keyword(s):  
Cast Iron ◽  
Digital Image Correlation ◽  
Uniaxial Compression ◽  
Digital Image ◽  
Strain Analysis ◽  
Local Strain ◽  
Image Correlation ◽  
Plastic Behavior ◽  
Solidification Velocity ◽  
Wide Range

Cast iron exhibits a wide range of mechanical properties, depending on its microstructural features. The microstructure of cast iron consists of several microconstituents with different elastic-plastic behavior, making the strain non-uniform across the bulk material. To understand the individual effects of these microconstituents on the overall mechanical behavior, local strain analysis using digital image correlation analysis was carried out. Samples with two different compositions (varying cerium, magnesium and silicon) were processed at different solidification velocities in a Bridgman furnace. Sections of the directionally solidified samples were loaded under uniaxial compression to measure global and local strain behavior. Despite the variability of the microstructure, the stress–strain curves obtained by digital image correlation (DIC) were found to react in a well-controlled way to changes in solidification velocity. It was observed that high-strain failure (greater than 15%) was accompanied by local straining of the softer ferritic phase, but during low-strain failure, local straining was not prominent. Higher nodularities, due to higher solidification velocities, raised the compressive strength without affecting the toughness significantly. Higher percentages of carbides led to higher compressive strengths with corresponding losses in ductility. The continuity of the matrix was also found to play an important role in the behavior during compression.

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