... behavior of a thin-walled box-girder bridge exposed to high-speed train loads using regression analysis. Design/methodology/approach The high-speed train is mathematically represented by a system with 38 degrees of freedom (DOF), while the sub-track system uses China’s Railway Track System slab track...

...) all affect the response function, i.e. ultimate tensile strength (σ_tensile), micro hardness (γ) and impact strength (λ) determined using Charpy test: Friction stir welding Mechanical properties Fuzzy logic model Regression analysis Aluminium alloys are highly sought after...

... in ANSYS. Regression analysis was performed to obtain the relation between density and thermal conductivity. Finally, the quality of the predicted regression equations was assessed using root mean square error (RMSE), mean absolute error (MAE), integral absolute error (IAE) and normal efficiency (NE...

... and using the survey material and geometric data. A relation among obtained values is derived. A regression analysis is performed and numerical-based formulae are extrapolated for the calculation of the resistance of the pillar R_p and the factor of safety Fs. This can serve...

.... According to the method of uniform design, 8 groups of test matching scheme of calcareous coal gangue mixture were designed. The experiments were conducted on calcareous coal gangue mixtures in various matching proportions. The experimental results are analyzed by regression analysis model. The regression...