Necking (engineering) | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-07-06

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Necking_(engineering)


00:00:45 1 Formation
00:03:05 1.1 Neck stability
00:03:52 1.2 Mathematical Treatment
00:04:27 2 See also
00:04:58 3 References



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SUMMARY
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Necking, in engineering or materials science,  is a mode of tensile deformation where relatively large amounts of strain localize disproportionately in a small region of the material. The resulting prominent decrease in local cross-sectional area provides the basis for the name "neck". Because the local strains in the neck are large, necking is often closely associated with yielding, a form of plastic deformation associated with ductile materials, often metals or polymers. Once necking has begun, the neck becomes the exclusive location of yielding in the material, as the reduced area gives the neck the largest local stress. The neck eventually becomes a fracture when enough strain is applied.