AN EXPERIMENTAL STUDY OF THE LARGE-STRAIN TENSILE BEHAVIOUR OF COMPOSITE SOLID PROPELLANT USING DIGITAL IMAGE CORRELATION

2021 ◽  
Author(s):  
Rajeev Ranjan ◽  
Murthy Haradanahalli S. N. ◽  
Vaibhav S. Sadavarte ◽  
Shrikant M. Pande ◽  
Debdas Bhowmik
Keyword(s):  
Experimental Study ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Solid Propellant ◽  
Large Strain ◽  
Image Correlation ◽  
Tensile Behaviour ◽  
Composite Solid Propellant ◽  
Composite Solid

scholarly journals A Comprehensive Method for Accurate Strain Distribution Measurement of Cell Substrate Subjected to Large Deformation

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Hong He ◽  
Rong Zhou ◽  
Yuanwen Zou ◽  
Xuejin Huang ◽  
Jinchuan Li
Keyword(s):  
Digital Image Correlation ◽  
Large Deformation ◽  
Digital Image ◽  
Strain Distribution ◽  
Large Strain ◽  
Image Correlation ◽  
Cell Substrate ◽  
Substrate Stretching ◽  
Different Strains

Cell mechanical stretching in vitro is a fundamental technique commonly used in cardiovascular mechanobiology research. Accordingly, it is crucial to measure the accurate strain field of cell substrate under different strains. Digital image correlation (DIC) is a widely used measurement technique, which is able to obtain the accurate displacement and strain distribution. However, the traditional DIC algorithm used in digital image correlation engine (DICe) cannot obtain accurate result when utilized in large strain measurement. In this paper, an improved method aiming to acquire accurate strain distribution of substrate in large deformation was proposed, to evaluate the effect and accuracy, based on numerical experiments. The results showed that this method was effective and highly accurate. Then, we carried out uniaxial substrate stretching experiments and applied our method to measure strain distribution of the substrate. The proposed method could obtain accurate strain distribution of substrate film during large stretching, which would allow researchers to adequately describe the response of cells to different strains of substrate.

Sign in / Sign up

Export Citation Format

Share Document