Recent content by Studious_stud

Homework Statement Hi all, I'm trying to calculate a parameter of polymers known as the fragility index. I've attached an image of this curve, which can be either strong of fragile depending on the material. The image also contains the definition for calculating this. However, I don't...

Homework Statement The continuum element shown in Figure (a) deforms to figure (b) I'm looking to find the positions after deformation (x coordinates) by expressing them in terms of E coordinates. Homework Equations The Attempt at a Solution x1 = E1 + E2 x2 = E1 + E2 x3 = E3 The...

Homework Statement I am attempting to calculate the shear force Vx, and bending moment Mx within the interval C - D of this beam. Homework Equations ƩFy = 0 ƩMx = 0 The Attempt at a Solution I have calculated the support reactions to be RA = 5kN and RB = 55kN ƩFy = 0...

Great. So just to clarify, the correct summing of moments about A is: (8)(10kN) + (6)(10kN) + 40kN(2) - 4RB = 0 Thank you very much

Thanks Blugga! So the moment for the UDL is 40kN(2m), 2m being the centroid of that section? I understand now. Which is the moment from the resultant force?

Yep!

Homework Statement Trying to calculate the support reactions here. Homework Equations ƩFy = 0 ƩMA = 0The Attempt at a Solution Well I've come up with the first equation (I assume two are needed to solve for both support reactions from the above equations). ƩFy = 0 RA + RB (up) = 10kN +...

Great I understand completely now, thanks everyone. :smile:

Homework Statement Homework Equations Usual equations for calculating Fourier series coefficients The Attempt at a Solution Well essentially I don't know what to let f(x) equal to for calculating the coefficients a0, an and bn. Should I use 1 + x/pi or 1 - x/pi? And what about...

Sorry for the double post here, I mean the upper limit is \infty

Oh I get ya, so the lower limit is 0 and the upper limit is -\infty?

Sure thing, just forgot to include it. I'd use latex but it's just quicker this way...

Homework Statement The Attempt at a Solution When I do the integral of this function I'm unsure of what the limits are. Anyone care to help? Thanks

Whoops, meant to say sinn∏=0, is this correct?

Thanks for the response. So let me get this right... cosn∏ = (-1)^n and sinn∏ = (-1)^n? Sorry still a bit confused!