This paper studies the dynamic plastic response of thin quadrangular mild steel plates subjected to uniform and localized impulsive loading. For this, two new dimensionless numbers based on dimensionless governing equation of plates have been suggested. Four different effective parameters such as plate geometry, inertia of applied load, mechanical properties of material and strain rate sensitivity have been considered in suggested dimensionless numbers. The unknown coefficients of these numbers have been calculated by using singular value decomposition method. In order to illustrate the ability of empirical constitutive equations for predicting the maximum deflection, these equations are compared with different sets of experimental results that have been performed by various researchers. The comparison between the results of present empirical equations and the other theoretical and experimental ones shows that these models are more accurate than the other ones and are suitable to use for predicting the maximum deflection of all quadrangular mild steel plates subjected to uniform and localized loading.

This article investigates the coupled flow and heat transfer behavior of two different nitrate molten salts, i.e., Solar Salt, and Hitec, as they flow in a single-bend of 180 degrees horizontal circular pipe. The internal turbulent flow of these two salts is investigated to heat a part of a high-temperature heat exchanger which will be used in a sustainable thermochemical cycle for hydrogen production. Governing conditions for the high-temperature turbulent flow of molten salts are derived based on the previously published and thoroughly validated articles, applied on the geometry and boundary conditions of the single-bended pipe and then compared with well known, experimentally validated convective heat transfer correlations. This research shows that the bend causes an intense mixing in the flow due to separation. Induced turbulence affects the heat transfer downstream of the bend causing the Nusselt number and the friction factor to increase substantially. Overall, the heat transfer increases at the cost of an increased friction factor and the resultant pressure drops after the bend.