A long time ago, I made a cycle headlamp using a Cree MC-E led and an Iris lens from Ledil. Result – a pretty good beam, but it turned out a bit wide for my purposes, and the beam does have a hole in ...
The critical load causing secondary failure of a deep beam by lateral buckling may be calculated by standard methods for those cases in which the beam behaves elastically under the applied load. When, ...
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