I have completed bending moment and shear force diagrams and have a question asking for the mean shear stress. I know this is worked out using the formula: tau = F/A.
I am unsure of what force to use is it the max shear force on my diagram? My other thought is that it could be an avergae of...
The question said to assume g=10 so it might be that he expects us to round everything off. I've emailed him anyway no reply yet. Thanks for your help I'll let you know the outcome.
Cheers Chris
I have attached my SF and BM workings for you to look at. showing BM answers both RtoL and LtoR. Working RtoL seemed to have solved the problem as the answers were all -3 of the LtoR workings up until BM@D that is when it all went wrong again.
I think it might be time to email my tutor and...
I used RA=2179 and RB=3071 for the shear force and it balanced. I've tried all sorts of rounding up and down and different decimal places and I can't get it to balance at zero for BM. It's got to be something to do with the decimal place.
Like you say it has to be zero I keep thinking I must...
I have also drawn the shear force diagram with the numbers rounded off and it comes back as zero. I had done this first so thought my figures were right rounded off.
Hi Jay thanks for the reply.
I have tried using the full answer i got for the support reactions which are RA=3071.428571 and RB = 2178.571429 which results in me getting the answer BM@K =0.000003 is this close enough to zero? I am pretty sure it should be a flat zero I don't know where this...
Homework Statement
Hi everyone this is my first post. I am having a problem with the bending moments of the beam (see attached files). I cannot for the life of me seem to get the bending moment to finish at 0 so I can draw the bending moment diagram. I know this is generally quite a simple...