A Technique for Coupled Thermomechanical Response Measurement Using Infrared Thermography and Digital Image Correlation (TDIC)

2015 ◽  
Vol 56 (2) ◽  
pp. 145-164 ◽  
Author(s):  
N. Cholewa ◽  
P. T. Summers ◽  
S. Feih ◽  
A. P. Mouritz ◽  
B. Y. Lattimer ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Infrared Thermography ◽  
Digital Image ◽  
Image Correlation ◽  
Response Measurement ◽  
Thermomechanical Response

Study on Lüders Deformation in Welded Mild Steel Using Infrared Thermography and Digital Image Correlation

2012 ◽  
Vol 585 ◽  
pp. 82-86 ◽  
Author(s):  
N. Srinivasan ◽  
N. Raghu ◽  
B. Venkatraman
Keyword(s):  
Digital Image Correlation ◽  
Mild Steel ◽  
Infrared Thermography ◽  
Digital Image ◽  
Tensile Testing ◽  
Image Correlation ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Testing ◽  
Heterogeneous Deformation ◽  
Lüders Band

Studies on characterizing heterogeneous deformations in many materials under different loading conditions using imaging NDE techniques like Infrared thermography (IRT) and Digital image correlation (DIC) began in the last decade and have been reported by many researchers. This work aims in experimental investigation of one such heterogeneous deformation namely Lüders band phenomenon in welded IS 2062 E250-B mild steel during monotonic, uniaxial tensile testing using IRT and DIC. Also attempt has been made to study the generation of pre-yield microstrain in welded material. An understanding of nucleation and propagation of Lüders band in welded specimen is made based on temperature and strain changes.

Experimental Validation of a Shape Memory Alloy Constitutive Model by Heterogeneous Thermal Loading Using Infrared Thermography and Digital Image Correlation

2013 ◽  
Author(s):  
Stephen R. Cornell ◽  
Darren J. Hartl ◽  
Dimitris C. Lagoudas
Keyword(s):  
Digital Image Correlation ◽  
Constitutive Model ◽  
Infrared Thermography ◽  
Digital Image ◽  
Thermal Loading ◽  
Mechanical Response ◽  
Image Correlation ◽  
Short Paper ◽  
Heating And Cooling ◽  
Localized Heating

This work introduces the use of digital image correlation together with infrared thermography to study non-uniform deformations due localized heating of equiatomic NiTi. While this short paper focuses on demonstrating the mechanical response of the material to localized heating, future work will also demonstrate calibration and validation of a 3-D constitutive model of the material using the concepts presented here. A comparison is made between the behavior of the material due to localized heating and the behavior due to uniform heating and cooling. The relevant parameters used for calibration of the constitutive model are quantified using the results of an ambient heating and cooling experiment.

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