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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 7    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 7,July 2012
Digital Image Correlation and the Contributions of Stress-Strain Measurements towards Failure Analysis
Full Text(PDF, )  PP.328-355  
Author(s)
S.Bhowmick
KEYWORDS
: Stress Strain measurement, Failure analysis, Digital Image Correlation
ABSTRACT
Failure mechanisms contributed by stress or material fatigue have been witnessed in several industrial as well as at R&D applications in various forms. Metallurgical studies for failure analysis have ensured the contributions of residual stress in several cases. The most important and common consideration in all these cases has been the material. Definitely, there may be other contributing factors also like sudden load, operating temperature, lack of lubrication etc. The most vital aspect of all the scientific observations remains to search the accurate cause with parameters & the subsequent measures for remedy. Here, lies a very close & important relation between Condition Monitoring activities & Failure analysis studies. While mainly metallurgical engineering which includes in-depth study of microstructure, grain boundaries etc. dominates the field of failure analysis, on the other hand a combination of various streams starting from instrumentation to mechanical, which again includes lubricant analysis, vibration based signature analysis, sophisticated systems like digital image correlation constitute the domain of Condition Monitoring. But it must be acknowledged that failure analysis studies pave the way for Condition Monitoring activities, since it indicates the parameters that are needed to be monitored & controlled. Hence, failure analysis strengthens the condition monitoring initiatives. However, this paper mainly highlights upon the various causes and features of material fatigue or fatigue failure, their occurrence at industrial sectors and the subsequent experimental procedures for stress-strain measurement in R&D.
References
1) An evaluation of short penning, residual stress and stress relaxation on fatigue life of A1S1 4030 steel, M.A.S Torres, H.J.C. Voorwald, International Journal of Fatigue,24 (2002) 877-886.

2) Residual stress measurements that correlate fatigue and facture behaviour, Michael.R.Hill, Residual Stress Summit, 26th Sep. 2010.

3) Various Experimental Applications of Digital Correlation Method, S.Moguil Touchal, F.Morestin, M.brunet, Laboratoire de Mécanique des Solides, INSA de Lyon, Unknown.

4) Bruck. H. A., McNeill. S. R., Sutton, M. A. Peters, W. H. Digital Image correlation using NewtonRaphson Method of Partial Differential correction, Experimental Mechanics, 1989, 261-26.

5) Chu, T. C., Ranson. W. F., Sutton. M. A., Peters.W. H. Application of Correlation Techniques to Experimental Mechanics, Experimental Mechanics, 1985, 232-244.

6) Sutton.M. A., Mingqi cheng, Peters.W. H., Chao. Y. S., McNeill.S. R. Application of an optimized digital correlation method to planar deformation analysis, Image and Vision Computing, vol 4 n°3, 1986, 143- 150.

7) Sutton. M. A., Wolters.W. J., Peters. W. H., Ranson.W. F., McNeill.S. R. Determination of displacements using an improved digital correlation method, Image and Vision Computing, vol 1 n°3, 1983, 133-139

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