Friday, 13 April 2012

What is stress stiffening


The out-of-plane stiffness of a structure can be significantly affected by the state of in-plane stress in that structure. This coupling between in-plane stress and transverse stiffness, known as stress stiffening, is most pronounced in thin, highly stressed structures, such as cables or membranes

If a guitar string (or a beam) is subject to tension the frequencies of the fundamental modes increase. This phenomenon is known as "stress stiffening".

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