A bar is subjected to fluctuating tensile load from 20kN to 100KN. The material has yield strength of 240 MPa and endurance limit in reversed bending is 160 MPa. According to the soderberg principle the area of crosssection in mm of the bar for a FOS if 2 ?

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Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.