Stress-strain curves at constant strain rate and for different concentrations of the filler can be shifted to form a master curve independent of filler content if the tensile stress is plotted versus strain in the polymer matrix. The relaxation modulus increases with increasing the filler ...
strain–life curveWalker equationA mean stress equation can be incorporated into the strain–life curve in a manner that is consistent with the stress-based use of the same equation. Doing so for the Walker mean stress relationship gives excellent results for a number of strain–life data sets...
One can note that there is no obvious peak point in each curve at a low confining pressure; the strength at final stability is about 54 kPa and 93 kPa, respectively, the soil shows stable or weaker strain-hardening characteristics, and the stress increases slowly, step by step, with the ...
One can note that there is no obvious peak point in each curve at a low confining pressure; the strength at final stability is about 54 kPa and 93 kPa, respectively, the soil shows stable or weaker strain-hardening characteristics, and the stress increases slowly, step by step, with the ...
Various attempts have been made to define the properties of constitutive models and parameter values for obtaining the true stress–strain curve; however, in many cases, they have been limited to only specific materials [21,22]. To address this problem, methods to predict the properties of vario...
The torsion strain-life curve is given by Equation (13), and the tension-compression strain-life curve is 𝜀𝑓(𝑁𝑓)=𝜎′𝑓𝐸(2𝑁𝑓)𝑏+𝜀′𝑓(2𝑁𝑓)𝑐,εfNf=σf′E2Nfb+εf′2Nfc, (14) where 𝜎′𝑓σf′ is the axial fatigue strength coefficient, ...
The experimental stress–strain curve in the elastic zone (up to a stress of approximately 9.3 MP) performed on cylinder No. 6 was listed and compared with the curves of the object from the model obtained in the first part of the modeling. Since the maximum unit strains were between 0.00035...
For structures with Z-directional supports, there is an apparent initial stress peak at the beginning of the curve, which is related to the plastic bending of the Z-directional support bar. After the failure of the Z-directional support bar, the overall structure becomes unsteady, and the ...
The stress–strain curve of test T6 (Figure 3a) displays the general behavior of the carbon paste subjected to cyclic loading. The test was carried out under a maximum stress amplitude of 𝜎𝑚𝑎𝑥=σmax= 1.5 MPa and with a strain rate of 𝜖˙=ϵ˙= 0.007 s−1. During the...
We can observe the ADF graph, and if this curve has a trend that gradually decays to zero, then the data are stability sequences. (2) Model identification and order selection. Firstly, the time series of ARIMA is changed into a stationary sequence after d order of difference, and then, ...