To balance the two loss values, the 𝛾γ parameter in Equation (15) was empirically set to 0.84 [36]. Poisson guided loss A common problem faced by the existing shadow removal methods is that the transition at the border of the shadow area is unnatural and with artifacts. Taking the met...
According to Equation (11), it can be found that the number of iterations 𝑙l, penalty factor 𝑝p, Young’s modulus 𝐸0E0, and 𝐸𝑚𝑖𝑛Emin, relaxation factor 𝛽β will all have an impact on the optimization of the objective function. 2.3. Optimization Examples and Analysis ...
This is because the ratio of Vs to Vp of six tested mortars firstly increased, then decreased (Figure 9), and the Poisson’s ratio is negative correlated with it (Equation (4)), so that the “local valley” appeared in Poisson’s ratio evolution curves. However, the above is an ...
In fact, Equation (2) cannot be directly applied to the boundary because the periodic fluctuation term 𝑢∗𝑖ui* is unknown. Therefore, the above expression needs to be transformed into an explicit constraint between two nodes on the relative surface of the single cell. For a two-dimensio...
In this paper, we further refine the theoretical derivation by considering the influence of section deformation on the internal force equation, the influence of different reference planes on the geometric equation, and the non-linear terms of the geometric equation. We derive a more accurate ...
Dispersion correction using Equation (9) was implemented in the Excel® template in VBA. For carrying out dispersion correction, the values of 𝜈ν and 𝑐oco must be assumed first. The literature values can be considered as the starting point. Once the assumed set of 𝜈ν and 𝑐oco...
The honeycomb sandwich structure is widely used in energy-absorbing facilities because it is lightweight, has a high specific stiffness and high specific strength, and is easy to process. It also has dynamic mechanical characteristics such as a high impa
Dispersion correction using Equation (9) was implemented in the Excel® template in VBA. For carrying out dispersion correction, the values of 𝜈ν and 𝑐oco must be assumed first. The literature values can be considered as the starting point. Once the assumed set of 𝜈ν and 𝑐oco...
Therefore, the tensile stress in the straps does not change Equation (5), as it refers to the center of gravity of the specimen. This determines the substantial difference between the diagonal compression test on wallettes strengthened with the CAM® system and the diagonal compression test on...
For inner unit cells of the 3D auxetic structure, the damage value D can be applied as the volume of the vertical pillar and the oblique structure to the volume of a unit cell with a solid core according to Equation (4), which is: 𝐷𝑖𝑛𝑛𝑒𝑟=𝑉𝑡𝑜𝑡𝑎𝑙−𝑉...