The maximum deformation attained while applying the load is 4.11 mm.The load deformation curve
was also recorded for each load steps and the peak load was observed.
The slope of the force x deformation curve
at any point is the tangent (T) obtained from the initially derived equation (T=d+2e.x+3f.[x.sup.2]), where the maximum tangent is obtained at the curve inflexion point, and x=-e/3f is considered as an indicator of product hardness.
Figures 2 and 3 show the position curve of the piston under axial load, axial load curve, axial stress curve (assuming axial stressed area of samples remains constant for stress calculation), and deformation curve
of artificial frozen soil under cyclic load, respectively.
Caption: Figure 4: The deformation curve
of residual oil with viscosity ratio.
To predict the failure time in each deformation curve
, we created an eight-hour training set consisting of the resampled and rescaled data from the other 21 datasets.
Determination of the deformation curve
was carried out using the specialized measuring instrument Instron.
The values of f andD were taken from the center of the pseudo-elastic portion of the force deformation curve
of the bending tests.
The plastic flow continues with an increasing (plotted negative) slope of the deformation curve
. After the pre-compression and unloading, the tensile curves exhibit a characteristic sigmoidal shape (S-shape), which is typical for compression test of extruded Mg alloys.
In , Liu and Guang compared different types of deformation curve
in the unified formula, and the result of calculation shows that sinusoidal curve is the most similar to the conclusions from German railway, so sinusoidal curve is used to calculate the stability of CWR.
In Figure 12(b), the impact crater caused by cube rockfall is a triangle when [alpha] [less than or equal to] 90[degrees].When [alpha] = 15[degrees], the mutation of the pipeline deformation curve
appears, which means that the rupture occurred here.
In the tests, razor blade shear energy (N * mm) is calculated as the area under the force deformation curve
from the beginning to the end of the test.
At that point a load is reached that leads to crack development with a drop in the load deformation curve
in some test specimens.