Recent content by scootypuffsnr

Hi I was wondering how you would account for mean stress (such as using with goodman equation) using von mises with miners rule due to variable loading Thank you

Hi i was wondering if a cylinder has hoop stresses, radial stresses and axial stress would that be multiaxial stresses? Thank you

Hi, I was wondering which stress values from a finite element program to use for fatigue analysis, (von mises, principal, tresca). I was leaning towards principal stresses but then would my stress range be σ11 from load case 1 (LC1) to σ11 of LC2, or would i need to do σ11-σ33 first and then...

Hi, I am running a finite element on a cylinder with that converges at the bottom for a opening, which is symmetrical in both directions so i modeled one quarter but the problem is my stresses are the same with when i compare with a full model that i also done but the deflections are different...

im actually analyzing a silo structure storing bulk material to analyze the stress concentrations near the bolt holes so it would have pressures and frictional forces on the walls but just thought cylinder with water would be easier to describe

thank you so much for the reply, what do you mean for the vertical axis? if the cylinder was inclined at the bottom of the cylinder would you not be able to apply the same equation and also do you know how would you include frictional forces if it was acting at the same time in the stress...

hi, i was wondering if a thin walled cylinder was storing water, where the pressure is dependent on the depth of water, how would you calculate the stress in the wall at some depth, eg are you allowed to use the thin walled pressure vessel stress formula: stress = pd/2t and use the water...

maybe these pics on a shirt

umm should it? i got it from the teacher but i think he didnt really look at it properly so yea not really sure how does the rest of the stuff look?

maybe 1= R + jwL +j/wC 1= R + j(wL+1/wC) 1= R + j(100L+1/100C) easy one can be R =1, L=.01, C= -0.01 which equals 1 = 1+ j(0)

Homework Statement Hi i tried this problem i attached(jpg one) but i don't think i am doing it right as I am getting a really small number and also would how would you calculate the apparent power over dependant source because i don't think i did that right either Homework Equations...

i think for thevenin's with a dependent source, you first have to find vth and then you s/c where vth is and then find the current through I-s/c after that then you get Rth = Vth/I-s/c

i think u take the node at the top and maybe the top equals vo so at the node so you have (vo-30)/2k+(vo-20)/5k+vo/4k or something like that, I am not really sure I am a first year engineering student too :)