Engineering, 28.04.2021 19:20, dareaalcaam111
In most finite element results, we can display stresses as any of the components, principals, or as the equivalent stress. In most basic mechanics texts, equivalent stress is calculated only after principal stresses are determined. Is this necessary? A few basic questions to answer this question.1.Write the equations to determine the three principal stresses given a general, three-dimensional stress state.2.Write the equation to determine the von Mises equivalent stress (Distorion Energy) given a general, three-dimension stress state and also the eqation given the three principal stresses.3.When viewing finite element results, which states of stress should you consider: 1) component stress, 2) principal stress or 3) equivalent stress? There may be more than one answer; if so, you need to describe when each is recommended.
Answers: 1
Engineering, 04.07.2019 18:10, ahmedeldyame
Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.
Answers: 1
Engineering, 04.07.2019 18:20, safiyabrowne7594
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
In most finite element results, we can display stresses as any of the components, principals, or as...
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