Impact force
Impact force
(OP)
How can i estimate the impact force generated by an object, for example a object with mass of 2kg falling from a height of 1m on a fixed end beam. Will it be possible to work out the impact force generated without requiring any experimental observations and without knowing the time interval over which the force was applied.
Any suggestions?
Thanks
Any suggestions?
Thanks






RE: Impact force
Without knowing the time or the deflection, and without doing any experiments your best estimates will still remain guesses.
RE: Impact force
RE: Impact force
Higher velocities,and intuitively I'd say that a very heavy object relative to the mass/inertia/resistance of the beam, confounds this approach. At some point you have to get to energy equations and the local yielding of materials. I had a client who was accidentally asking about objects falling at terminal velocity. When I told him that they would penetrate the steel, he realized that he had not asked the right question, since the objects would be falling less than 10 feet.
RE: Impact force
RE: Impact force
This link gives an answer to the problem if you can estimate the beam deflection.
http:
BA
RE: Impact force
TXStructural, do you have a reference (i.e. book) to Timoshenko's observation that axially-loaded rods applied with a sudden load elongate twice as much in comparison to that of a static load.
Thank you also thanks to everyone else who have replied.
RE: Impact force
http:/
Maybe the tyranny of Murphy is the penalty for hubris. - http://xkcd.com/319/