In this study, [alpha]-iPP is used as a model to study the structure evolution of iPP during uniaxial
tensile deformation at different stretch temperatures (30[degrees]C, 60[degrees]C, 100[degrees]C, 120[degrees]C).
m] value under the applied uniaxial
pressure were ~3 [degrees]C/kbar and 250/kbar for x = 0.
tension tests under the constant longitudinal strain rate
tension or compression test will provide one data point on the failure envelope.
One can see that the anisotropic effect for this material is not apparent in views of a) plasticity: both the tested strength and strain histories under different orientations are very close, for both uniaxial
and notch tensions, and b) fracture: all tested fracture points have slight difference among three orientations for these loading conditions.
The authors comment, "The magnitude of the durability difference between sequential uniaxial
tests and simultaneous multiple degree of freedom (MDOF) tests depends on the amount of nonlinear cross-axis interactions.
Using the hot uniaxial
tension test to differentiate between the non-aging and aging steels represents an easy method to do that.
Radon emanation in rocks under uniaxial
compression was investigated using a self-designed radon release set-up (SRRS) and an electro-hydraulic servo-controlled rock mechanics testing system (MTS Model 815, MTS Company, America) at the State Key Laboratory of Coal Resources and Safe Mining (SKLCRSM), Xuzhou, China.
The experimental results of DF with large l are all obtained from the uniaxial
stress growth coefficient using a method proposed by Wagner et al .
Keywords: Acoustic Emission (AE), silica sand particle, crack formation, uniaxial
compression, frequency domain analysis
The evaluation of the weathering profile in the study area was based on a qualitative description of the colors and discoloration, discontinuities states, the existence or absence of the original rock texture, and the uniaxial
compressive strength of the intact rock based on the Schmidt hammer rebound value.
MARS research of natural rubber under cyclic loading cracks nucleation, expansion, and ultimate failure studies the relationship between crack growth and crack growth rate of the number of cycles and the energy release rate and summed up the crack growth life under uniaxial
loading conditions and strain energy density function formula .