11:48 avoid non-liner if avoidable... if you have like in building constructions a lot of loadtypes, where you have to use superposition of the results it is elementary to use linear types of FEA. Whereas if you have some strong loading exposed columns... you can use Elastic Theorie II. Dregree where you iterate the Load and Displacement to test if buckling is really a problem. this is only a construction engineer comment :D And of course... you need to know what to use when. When elastic, when plastic material behavier. When using geometrical non linearity. When dynamical analysis. And especially what to use when. engineering is awesome and the video is as well👍😁 Thanks!
For all interested in the nonlinear FEA course: enterfea.com/introduction-nonlinear-analysis/ MY blog can be found here: enterfea.com/blog/ Tony! It was such a pleasure (and fun!) to talk with you - I hope we will do it more often :)
Worth mentioning the most common use of snap through is the anti-tamper button on the lid of just about every food jar on sale. A more interesting one is in the thermostat on a lot of electric devices, where a slightly dished spring made with two different materials bonded together (A bimetallic 'dome' rather than a bimetallic strip because a dome can apply a greater force with less material than a cantilevered beam as well as using the snap through to create a bistable system so the thermostat is either 100% on or 100% off) is used as a temperature sensor. At a desired temperature (Driven by the difference in thermal expansion coefficients between the two metals) it pops from convex to concave and in doing so pushes a button that breaks the electrical contacts feeding the appliance.
Dear Sir, Snap back refers to a temporary deformation and does not indicate a structure's capacity to endure stress or loads in the long term. Therefore, relying solely on snap back results to determine a structure's capacity is not accurate; permanent deformation and overall structural integrity should be considered for a comprehensive assessment. In this case, can we ignore the effect of snap back?
Awesome video...please do post more ofthen
Hey Alex! I'm so happy that you like it! We will do more I'm sure :)
11:48 avoid non-liner if avoidable... if you have like in building constructions a lot of loadtypes, where you have to use superposition of the results it is elementary to use linear types of FEA. Whereas if you have some strong loading exposed columns... you can use Elastic Theorie II. Dregree where you iterate the Load and Displacement to test if buckling is really a problem.
this is only a construction engineer comment :D
And of course... you need to know what to use when.
When elastic, when plastic material behavier.
When using geometrical non linearity.
When dynamical analysis.
And especially what to use when.
engineering is awesome
and the video is as well👍😁
Thanks!
For all interested in the nonlinear FEA course: enterfea.com/introduction-nonlinear-analysis/
MY blog can be found here: enterfea.com/blog/
Tony! It was such a pleasure (and fun!) to talk with you - I hope we will do it more often :)
Hi Lukasz - yes it was a very enjoyable experiment for both of us - now let's see if folks also enjoy it and find it useful!
It is appear that sound of Lukasz does not work.
Hi Richard, I can hear Lukasz - can you give a time point where his sound is off?
Worth mentioning the most common use of snap through is the anti-tamper button on the lid of just about every food jar on sale. A more interesting one is in the thermostat on a lot of electric devices, where a slightly dished spring made with two different materials bonded together (A bimetallic 'dome' rather than a bimetallic strip because a dome can apply a greater force with less material than a cantilevered beam as well as using the snap through to create a bistable system so the thermostat is either 100% on or 100% off) is used as a temperature sensor. At a desired temperature (Driven by the difference in thermal expansion coefficients between the two metals) it pops from convex to concave and in doing so pushes a button that breaks the electrical contacts feeding the appliance.
Lukasz is very sharp and practical.
Dear Sir, Snap back refers to a temporary deformation and does not indicate a structure's capacity to endure stress or loads in the long term. Therefore, relying solely on snap back results to determine a structure's capacity is not accurate; permanent deformation and overall structural integrity should be considered for a comprehensive assessment. In this case, can we ignore the effect of snap back?
reminds me of those snap bracelets that were popular in the 90s. Bistable structures are too complex for my brain.