Stress-Strain Relationship at Central Uniaxial Compression

Stress-Strain Relationship at Central Uniaxial Compression 

FIGURE 2.6 Relationship between relative deformation of RubCon and compressive stress. (Reprinted from Yu. Potapov, O. Figovsky, Yu. Borisov, S. Pinaev, and D. Beilin, Stress-Strain State of Compressed Elements from Polymer Concrete, J. Scientific Israel Technological Advantages 4, nos. 3-4 (2002) 20-24. With permission.) 

Let v = o/aR p = e/es k = EeR/aR. On the experimental base it is believed that dependence v = fikr ) looks like a square parabola v = p - p2, where o, e are the current values of compression stress and deformations, respectively, aR, ,t are the coordinates of the diagram top, k is the factor describing the elastic-plastic properties of RubCon. Then, 

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