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From

Possibility of Using of Tensometry in Deformation Analysis in Areas With Sudden Change of Geometry

Miroslav Pástor, František Trebuňa, Pavol Lengvarský, Jozef Bocko

American Journal of Mechanical Engineering. 2016, 4(7), 363-367 doi:10.12691/ajme-4-7-23
  • Figure 1. Dimensions and shape of test specimen
  • Figure 2. Scheme of measurement chain for the measurement of deformations by strain gages
  • Figure 3. Influence of grid length to the measured value of strain
  • Figure 4. Shapes of strain gage chains. a) direction of measurement grid is parallel with longitudinal axis of chain, b) direction of measurement grid is perpendicular to longitudinal axis of chain, c) direction of measurement grid is oriented parallel or perpendicular to longitudinal axis of chain, d) measurement grids are in groups with three and angles 0°/60°/120° with respect to longitudinal axis of chain [8]
  • Figure 5. Basic dimensions of strain gage chain KY21-2/120 [8]
  • Figure 6. Position of strain gage chain
  • Figure 7. View to applied strain gage chain with soldered wires
  • Figure 8. Loading equipment SCHENCK. a) location of test specimen in working space, b) view to measurement chain
  • Figure 9. Graphical representation of measured data
  • Figure 10. Model of analyzed specimen with boundary conditions
  • Figure 11. Numbering of sensors on analyzed model
  • Figure 12. Meshed model with refined mesh near stress concentrators
  • Figure 13. Strain field εx for defined loading
  • Figure 14. Detail of strain field εx near analyzed notches