The dynamic deformation of a layered viscoelastic medium under surface excitation
نویسندگان
چکیده
منابع مشابه
Folding instability of a layered viscoelastic medium under compression
A preliminary theory is established for the stability of e visooelastio leyer sandwiched in an infinitely extended medium of another visooelastio materiel when s compressive force is acting in a direction parallel with the layer. The instability is menifested by e folding of the layer. It is shown that in general there exists e lower and & higher critical load between which folding occurs at a ...
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When a layer of material embedded in an infinite medium is subject to a comfiression parallel with the layer an instability tends to develofi which manifests itself in the folding of the layer. This phenomenon is examined here for the general case where the layer and the surrounding medium are both viscoelastic. This problem which was examined in preliminary form in an earlier publication [6]t ...
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Dynamic recrystallization, DRX, behaviour of a precipitation hardened, PH, stainless steel was studied in connection with microstructural developments in a compression test. The experimental results showed that the dominant mechanism of softening is DRX, but at high strain rates and low temperatures, ie, high Zener-Holman parameter, Z, work hardening and dynamic recovery, DRV, produced a pancke...
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The purpose of this paper is to analysis the viscoelastic models under dynamic loading. A five-parameter model is chosen for study exhibits elastic, viscous, and retarded elastic response to shearing stress. The viscoelastic specimen is chosen which closely approximates the actual behavior of a polymer. The module of elasticity and viscosity coefficients are assumed to be space dependent i.e. f...
متن کاملFolding of a Layered Viscoelastic Medium Derived from an Exact Stability Theory of a Continuum under Initial Stress*
A layer of viscoelastic material embedded in an infinite medium also viscoelastic tends to fold through instability when the system is compressed in a direction parallel with the layer. This phenomenon which was treated previously by using an approximate plate theory, [l, 21, is analyzed here by using an exact theory for the deformation of a continuum under prestress [3, 4, 5, 61. The effect of...
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ژورنال
عنوان ژورنال: Physics in Medicine and Biology
سال: 2015
ISSN: 0031-9155,1361-6560
DOI: 10.1088/0031-9155/60/11/4295