Experimental Measurement of Elastic-Plastic Fracture Parameters Using Digital Image Correlation Method

Ivan Jandejsek; Daniel Vavřík

doi:10.4028/www.scientific.net/AMM.821.442

Paper Titles

Modelling of Fabric in Plain Weave
p.412

Testing of Energy Absorption Capability of Sandwich Structures Based on Metal Foams for Design of Protective Helmets
p.420

Deformation Mechanisms of Auxetic Microstructures for Energy Absorption Applications
p.428

Determination of Mechanical Properties of Magnesium Alloys and Composites by Small Punch Testing
p.435

Experimental Measurement of Elastic-Plastic Fracture Parameters Using Digital Image Correlation Method
p.442

Verification of Ductile Fracture Criteria Based on Selected Calibration Tests
p.450

Measuring of Cyclist Impact Dynamics
p.456

Fracture Toughness Testing for Improving the Safety of Gas Pipelines
p.464

Study of Surface Quality and Mechanical Properties of Composite Material Based on Natural Reinforcement
p.471

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 821Experimental Measurement of Elastic-Plastic...

Experimental Measurement of Elastic-Plastic Fracture Parameters Using Digital Image Correlation Method

Abstract:

This paper presents a complex experimental measurement of elastic-plastic fracture parameters such as J-integral, CTOD and J-resistance curve for ductile materials with single specimen test employing the Digital Image Correlation method. Main advantage of the approach is that it allows evaluation of the parameters directly from its definitions in contrast to current standardized measurements defined mostly by ASTM where the parameters are evaluated indirectly. Moreover, the method provides other useful information such as the extent and shape of a plastic zone in the vicinity of a crack tip. The presented method is employed in the case of thin-sheet aluminium alloy. Different approaches to determine a critical value of J-integral from experimental results; i.e., to determine the fracture toughness of the material are presented.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 821)

Pages:

442-449

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.821.442

Citation:

Cite this paper

Online since:

January 2016

Authors:

Ivan Jandejsek*, Daniel Vavřík

Keywords:

CTOD, DIC, Ĵ-Integral, J-R Curve

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] A. A. Wells, Application of fracture mechanics at and beyond general yielding, Br Weld J 10, 1963, 563–70.

Google Scholar

[2] J. R. Rice, A path independent integral and the approximate analysis of strain concentration by notches and cracks, J Appl Mech 35, 1968, 379–86.

DOI: 10.1115/1.3601206

Google Scholar

[3] T. L. Anderson, Fracture Mechanics: Fundamentals and Applications, CRC Press, (1995).

Google Scholar

[4] I. Jandejsek, J. Valach, J., D. Vavřík, Optimization and Calibration of Digital Image Correlation Method, in: Proc. Experimental Stress Analysis 2010, Olomouc, 121-126.

Google Scholar

[5] J. D'Errico, Surface Fitting using gridfit, MATLAB Central File Exchange, (2005).

Google Scholar

[6] Z. Bittnar, Z., J. Šejnoha, Numerické metody mechaniky, ČVUT, Praha (1992).

Google Scholar

[7] M. Sutton, J. Yan, V. Tiwari, H. Schreier and J. Orteu, The effect of out-of-plane motion on 2D and 3D digital image correlation measurements, Optics and Lasers in Eng., 46, 2008, 746-757.

DOI: 10.1016/j.optlaseng.2008.05.005

Google Scholar

[8] S. Shinde et al., Fracture Toughness of Thin Aluminum Sheets Using Modified Single Edge Notch Specimen, IJEIT 1(5), 2012, 283-288.

Google Scholar

[9] T. Pardoen, Y. Marchal and F. Delannay, Thickness dependence of cracking resistance in thin aluminum plate, Journal of the Mechanics and Physics of Solids, 47(10), 1999, 2093-2123.

DOI: 10.1016/s0022-5096(99)00011-3

Google Scholar

[10] D. Vavřík, I. Jandejsek, Experimental evaluation of contour J integral and energy dissipated in the fracture process zone, Eng Fract Mech 129, 2014, 14-25.

DOI: 10.1016/j.engfracmech.2014.04.002

Google Scholar