On the basis of the test results, we proposed an equation to predict stress-strain relation of polymer concrete. In this model, we took account of the slope of descending branch beyond the peak stress point of a single curve. The proposed equation was numerically integrated to compute the ...
The stress-strain curve of concrete specimens strengthen with FRP (glass fiber-carbon fiber) in Non-Fire Exposed condition is shown in Figure 5. Compressive Strength of Post Fire Exposed Concrete Column Wrapped with Fiber Reinforced Polymer After applied ANSYS v15.0 for computational model and obtain...
The stress-strain curve typically has two parts: the elastic region and the plastic region. In the elastic region, the material deforms in response to the applied stress, but the deformation is not permanent. The material returns to its original shape and size when the stress is removed. The...
In the case of purely linear elastic material, the stress-strain curve reduces to a line, replicating Hooke’s law. On the other hand, if the stress-strain plot deviates from the elliptical geometry into a non-elliptical hysteretic response, it implies that the polymer response trespassed into...
Stress relaxation was measured after application of a double-step shear strain on a concentrated solution of polystyrene in chlorinated biphenyl. The first shear strain s1 was applied to the sample in a cone-plate sample holder of a relaxometer at time t1, the second strain s2 was added at ...
(a) Stress-strain curve of polymer P1f (1 mg ml−1, T=37 °C) in a stress ramp. (b) The stiffness represented as the differential modulus K′≡δσ/δγ as a function of stress σ for the same polymer. At low stress, K′=G0 the plateau modulus, but beyond a critical...
Stress-strain curve in plastic deformation. For the time being, let’s consider the elastic-plastic problem without the influence of temperature. Then the strain increment Δɛ becomes the sum of the elastic strain increment Δɛe and the plastic strain increment Δɛp, that is, (3.64)...
et al. Stress Relaxation of Polymer Solutions under Large Strain. Polym J 5, 91–96 (1973). https://doi.org/10.1295/polymj.5.91 Download citation Issue Date01 October 1973 DOIhttps://doi.org/10.1295/polymj.5.91 Springer Nature Limited Share this article Anyone you share the following link...
To establish complete stress-strain curve equations for confined concrete in cross-shaped columns, we designed 7 test specimens corresponding to the usable eigenvalue range of stirrup of the cross-shaped columns. We obtained the test results of the reinforced concrete cross-shaped columns through axia...
Dynamic Mechanical Analysis of Clay–Polymer Nanocomposites 1.5.5 Tensile Measurements of Thin Films and Fibers DMA also provides a facility for stress–strain measurements in thin films and fibers using film/fiber tension clamps. It has been found very effective in evaluating the mechanical properties...