As-molded PDO without annealing showed 27.7 MPa yield strength, 10.4% yield strain, elastic modulus of 593.5 MPa, and elongation at break of 215.7% tested under dry condition (namely without contact with PBS solution), as shown in Table 1.

In other words, at room temperature the elastic modulus and the complex modulus for most materials agree to within one part in 5000 and therefore can be used interchangeably.

Meanwhile, the elastic modulus of the concrete was significantly reduced due to the elastic characteristics of coated welded wire mesh.

The elastic modulus, G', represents the solid-like component in the viscoelastic response, while the viscous modulus, G", represents the liquid-like component.

The results showed that the uniaxial compressive strength, elastic modulus and the Poisson ratio decayed with the increase of temperature.

The elastic modulus at different temperatures and vacancy concentrations is shown in Figure 7.

[E.sub.2] is the elastic modulus of proppant 2, MPa.

The dimensions and mechanical properties of all reinforcements used in the experiment were experimentally measured, as listed in Table 3, in which D and E refer to the diameter and elastic modulus of reinforcement, respectively, [f.sub.y] and [f.sub.u] refer to the yield stress and ultimate stress of reinforcement, respectively, and [[epsilon].sub.u] refers to the fracture strain of reinforcement.

The launching dynamic model of flexible effects with field floor was established, the simulation analysis of the launching dynamics was carried out, and the impacts of concrete panel thickness and elastic modulus to the launching effects were discussed in detail.

[1] studied the damping characteristics of rock under the cyclic loading and obtained the relationship between the dynamic elastic modulus and the damping ratio and the dynamic load.

The deflection was measured using a displacement transducer, and the elastic modulus was determined by considering the coffee branch as a cantilever beam with a circular cross section.

This deformation force dominates all three components of the force in most cases and may be considered proportional to the elastic modulus, given that the deformation is only elastic.7,8