Recent content by miketingscott

Thanks a lot for everyone's answers, it has given me lots to think about and some direction on how to best answer this question. Answering your question 'SWComposites'..all the material is delivered in a very maths based way will little wording within any of my lecture material. It has been up...

Thanks for your answers. I have just realised that I mistyped the question slightly and that it should be the difference between plastic overload and instability. Unless I am right in think that an overload would mean the same thing as a collapse? So instability refers to a particular action...

Sorry, that was a bit lazy. So far I have come to the conclusion that plastic overload is concerned with permanent deformation ie. no longer the same shape and that instability is not a permanent deformation but the ability for a structure to change shape from the desired one. Would you agree...

http://www.calibamboo.com/mm5/images/projectofthemonth/poll/feb12/1a.jpg

Can't find a better picture, but this should give you an idea Greg. Mike

Could someone please explain the main differences associated with plastic collapse and instability, in the context of bending failures of structures. Thanks in advance, Mike

Am I right in thinking that before the plastic collapse the neutral axis will pass through the centroid of the section because there is no axial stress acting on the section. However, at the point of plastic collapse, axial stress begins to act on the section and this cause the neutral axis to...

Hi, I am currently trying to work through some example questions and have become stuck on one word based answer. Firstly, I wasn't sure where to post this so if anyone knows of a more appropriate area please let me know and I'll move it. I would just like to let you know the question and then...

Thanks for the help everyone, I thought about HEC-RAS. Haven't used it in quite a while but will give that a go. Mike

The flume has sides that are 0.3m high and I will be constructing walls this high to constrict the flow. The transition is over about 0.3m, using an arc shape. I understand there will be lots of losses, so by the sounds of it, there isn't really an equation that will be able to calculate...

I'll just outline the problem with better details if that's ok just to double check that it can be done with the data I have. Water is travelling down a flume, with dimensions of flow 0.6x0.05m at 1.67m/s. I want to narrow the flow in a 0.1m wide channel. And I would then like to calculate the...

The problem with this equation is that I do not know what the new hydraulic radius will be as I do not know how much the water level will rise by. I know the width of the new channel but the water is unconstrained in terms of the height it can rise to. Mike

Thanks, are the SI units for kn m/s? I would like to use m/s int he calulation. Mike

For a currant project I am designing a model waterwheel to work in a flume. Basically I am narrowing the flume in order to increase the fluid velocity. I know that the equation u1.a1=u2.a2 cannot be used as this is for a closed pipe but have heard there is an equation to calculate for open...