Water plays an important role in geological processes. Providing constraints on what may influence the distribution of aqueous fluids is thus crucial to understanding how water impacts Earth's geodynamics. Here we demonstrate that ductile flow exerts a dynamic control on water-rich fluid circulation in mantle shear zones. Based on amphibole distribution and using dislocation slip-systems as a p...

The Pickett effect is the phenomenon of creep enhancement during transient drying. It has been observed for many nanoporous solids, including concrete, wood and Kevlar. While the existing micromechanical models can partially explain this effect, they have yet to consider nanoscale dynamic effects of water in nanopores, which are believed to be of paramount importance. Here, we examine how creep...

Time-dependent creep stress redistribution analysis of thick-walled FGM spheres subjected to an internal pressure and a uniform temperature field is investigated. The material creep and mechanical properties through the radial graded direction are assumed to obey the simple power-law variation throughout the thickness. Total strains are assumed to be the sum of elastic, thermal and creep strain...

In the Present study, attempt will be made to propose a new method for prediction of long-term essential creep of concrete utilizing some short-term creep tests under high temperature. To do so, regarding the similarities between essential creep of concrete and creep in viscoelastic materials, the time–temperature equivalence relation in viscoelastic materials is evaluated for concrete. This re...

One of the yet unresolved engineering problems is forecasting the creep lives of weldment in a pragmatic way with sufficient accuracy. There are number of obstacles to circumvent including: complex material behavior, lack of accurate knowledge about the creep material behavior specially about the heat affected zones (HAZ),accurate and multi-axial creep damage models, etc. In general, creep life...

The effects of water and iron content on the relative creep strengths of garnet and olivine were investigated by shear deformation experiments. arnet and olivine samples were sandwiched together between alumina pistons in a simple shear geometry and were deformed at P= 1–2 GPa, = 1473 K and strain rates ranging from 10−5 to 10−3 s−1 using a Griggs-type solid-medium apparatus. The stressand stra...

S OF PAPERS 235 90 Creep compliance of chicken nuggets at different frying temperatures. T. Yalamanchili*1, P. Takhar2, and C. Z. Alvarado1, 1Texas A&M University, College Station, 2Texas Tech University, Lubbock. The texture of chicken nuggets is a very important attribute to consumers. However, there is little data indicating textural properties of chicken nuggets during frying utilizing cree...