شماره ركورد كنفرانس :
4560
عنوان مقاله :
Stress Field Analysis of V-Notches with Tip Cracks in a Polymer Material using Digital Image Correlation
Author/Authors :
N Soltani Center of Excellence in Intelligence- Based Experimental Mechanics - School of Mechanical Engineering - College of Engineering - University of Tehran, Tehran , M. R Yadegary Dehnavi Center of Excellence in Intelligence- Based Experimental Mechanics - School of Mechanical Engineering - College of Engineering - University of Tehran, Tehran , I Eshraghi Center of Excellence in Intelligence- Based Experimental Mechanics - School of Mechanical Engineering - College of Engineering - University of Tehran, Tehran
كليدواژه :
Digital Image Correlation , Fracture Mechanics , Least Squares , Stress Intensity Factor , V-Notch
عنوان كنفرانس :
The International Conference on Experimental Solid Mechanics and Dynamics ۲۰۱۲
چكيده لاتين :
In this study, displacement field around V-notches of a polymethylmethacrylate (PMMA) specimen with tip cracks will be analyzed using digital image correlation technique. First intensity factor in combination with in-plane rigid body translations and rotation components will be determined by linear least squares fitting of the displacement field data to the corresponding relations among stress intensity factor and displacement field. Effect of v-notch angle on the results would be investigated. Experimental results will be compared with those obtained from finite element analysis and accuracy of results and sources of errors will be discussed. The proposed method can be used to evaluate various fracture characteristics of different materials.
