Numerical Study of Dynamic Properties of Fractional Viscoplasticity Model

被引：9
|
作者：
Szymczyk, Michal [1 ]
Nowak, Marcin [2 ]
Sumelka, Wojciech [1 ]
机构：
[1] Poznan Univ Tech, Inst Struct Engn, Piotrowo 5 st, PL-60965 Poznan, Poland
[2] Polish Acad Sci, Inst Fundamental Technol Res, Pawinskiego 5B St, PL-02106 Warsaw, Poland
来源：
SYMMETRY-BASEL | 2018年 / 10卷 / 07期
关键词：
fractional viscoplasticity; rate dependence; plastic anisotropy; non-normality; directional viscosity; explicit/implicit non-locality; PLASTIC-FLOW; POROUS-MEDIUM; DEFORMATION; MECHANICS; BEHAVIOR; FLUID;
D O I：
10.3390/sym10070282
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The fractional viscoplasticity (FV) concept combines the Perzyna type viscoplastic model and fractional calculus. This formulation includes: (i) rate-dependence; (ii) plastic anisotropy; (iii) non-normality; (iv) directional viscosity; (v) implicit/time non-locality; and (vi) explicit/stress-fractional non-locality. This paper presents a comprehensive analysis of the above mentioned FV properties, together with a detailed discussion on a general 3D numerical implementation for the explicit time integration scheme.
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页数：17
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