Extent of Three Parameter Zone and Optimum Strain Gage Location for Eccentric Cracked Configurations
The accuracy of measurement of opening mode stress intensity factor using strain gage techniques mainly depends on location of the strain gages. The present work proposes a finite element based simple procedure for accurate determination of three parameter zone and optimum strain gage location for various eccentric cracked configurations. In this paper, the effect of specimen size and crack length to width of the eccentric cracked plate on optimum location of strain gage is also studied. The results of the present investigation show that specimen size and ratio of crack length to width of the plate strongly influence the optimum location of strain gage.
H. Sarangi et al., "Extent of Three Parameter Zone and Optimum Strain Gage Location for Eccentric Cracked Configurations", Applied Mechanics and Materials, Vols. 110-116, pp. 127-134, 2012