Summary
A homogeneous deformation field, called “pure extension” is introduced. Various applications of this field are considered. Pure extension leads to a reasonable static interpretation of the strong-ellipticity condition in linearised elasticity theory. The response of a compressible elastic material to pure extension is related to the speeds of propagation of infinitesimal plane waves. Finally, a generalised Tension-Extension condition is introduced and discussed.
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Hayes, M. On pure extension. Arch. Rational Mech. Anal. 28, 155–164 (1968). https://doi.org/10.1007/BF00283863
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DOI: https://doi.org/10.1007/BF00283863