High-temperature viscoelasticity of fine-grained polycrystalline olivine

(An)elastic softening from static grain boundaries and possible effects on seismic wave propagation

“…In this paper we exclude features such as melts on interfaces and refer to Hiraga et al (2002) for intergranular melt phases with a characteristic thickness in the range of 0.5-10 nm and de Kloe et al (2000), Tan et al (2001) and Faul and Jackson (2004) for careful analysis of meltbearing systems involving olivine. While it is possible to extract information about the melt, we focus here on meltfree interfaces without grain boundary sliding or any other movement which trivially leads to dissipation of strain energy.…”

Planetary Ices Attenuation Properties

“…In order to reflect the complexity of planetary materials, some researchers replace the single relaxation time t in the simple Burgers model with a suitably broad distribution D(t) of relaxation times to more accurately describe the response in both the time and frequency domains (Tan et al 2001;Jackson et al 2004). The components of the complex compliance of this "extended" Burgers model are given by: 7.16) where the parameter D is anelastic relaxation strength, which is a direct function of the concentration, mobility and geometry of the defect(s) accommodating the relaxation (Jackson et al 2002).…”

Peristaltic transport of a fractional Burgers’ fluid with variable viscosity through an inclined tube

“…This model is also the preferred model to explain the behavior of asphalt and asphalt concrete [21]. In addition, the Burgers model is sometimes used to model other geological structures, such as Olivine rocks [22]. Recently, Hayat et al [23] found an exact solution for rotating ows of a generalized Burgers' uid on an in nite insulating plate when the uid is permeated by a transverse magnetic eld.…”