Hello Folks,
I am interested in learning more about structural dynamics. I would appreciate some book recommendations. Ideally, I would like a book that covers all types of structures (civil, aero, mech, vehicular, marine, etc).
Thanks.
Hi Folks,
I'm a recent Nastran user. I am analyzing a model that has localized stresses that exceed the material yield stress. Is there a way to allow these particular elements to "drop out" and have a stress redistribution, with the resulting model still stable? Basically I'm trying to...
Take a look at this:
http://www.msnbc.msn.com/id/23454581/
The indictment document is available online too.
I think that the guy is being made a scapegoat.
Hi Folks,
I'm a recent Femap/Nastran user and have run into the RBE3 vs. RBE2 issue. I understand that the RBE2 is infinitely rigid. The RBE3 appears to have an elasticity that is defined via the Interpolation Factor. I am wondering how this Interpolation Factor relates to the real world? What...
Hello Folks,
Part of my current work responsibilites involve the design of roof mounted equipment dunnage. The applied loads on the dunnage are at right angles. I'm wondering however if there is a code prescribed requirement for "racking" loads (ie diagonal loads). Or is it left to the...
Hi Folks. I have a system that I need to find out the natural frequency of. It consists of a mass sliding horizontally back & forth on a frictionless surface. At each end of the mass is a spring. But there is a gap between each spring and the mass. So the mass makes intermittant contact with...
Hi Folks. I am interested in getting a book recommendation on the topic of Fracture Mechanics. I'm looking for a book for someone just starting to learn about the topic, along with real world applications and not just theory.
Check this out: www.plan-source.com
They apparently offer professional engineering services in the USA utilizing a workforce overseas. Their designs are stamped by stateside PEs. I get the impression that this type of business model is not legal, but lets see what others think.
Perhaps the folks on this forum can give some insight regarding something that I observed in one of my numerous trips to New York City. I recently observed a new building under construction while walking down a street. I noticed that the new building was a steel framed structure with interior...
Several states currently have separate PE licenses for each discipline. Others do not. I have heard that some structural engineers are advocating separate licensing for their specific discipline. Lets hear from the forum readers on what they think about this. I personally am torn about the issue...
ASCE is proposing a revision to the licensing process. They want engineers to get master's degrees before being allowed to get PE Licenses. How do the readers of this forum feel about this?
I'm wondering what other folks think about this. Do you think that we should have 1 PE license good for the whole USA? Or shall we keep the current state license sysytem? I'm wondering if a single national license has ever been pursued with the government and if not, how would one go about...
There has been a recent court case brought to my attention by the NSPE. A contractor was financially penalized due to late completion of a project. He then sued the engineer of the project, claiming that the project was late due to errors on the part of the engineer. The contractor is looking to...
I am curious about the separation of structural design and structural detailing into 2 disciplines (Engineer and Detailer). I am wondering how this separation came about. Anyone know the history behind this separation?
