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 | Short term settlement of footing on snow foundation
Author : Mahajan, Puneet
Source : Defence Science Journal ; Vol:51(4) ; 2001 ; pp 419-427
Subject : 551 Geology
Keywords : Constitutive theory of snow;Transient creep effects;Bond deformation;Fracture ;Strain hardening of snow
Abstract : "A constitutive theory for snow, developed by the authors, is applied to solve for the short-term settlement of footing on snow foundation. The constitutive law used is a microstructurally-based formulation which includes the effects of bond deformation and fracture. It also includes transient creep effects and strain hardening of snow. The foundation problem is solved for stress and displacement distribution, with two different loads of 0.008 MPa and 0.1 MPa distributed uniformly over a part of the top face. The stress distribution matches closely with the existing theoretical results. " |
| | Creep Transition in a Thin Rotating Disc of Variable Density
Author : Gupta, S.K.;Sharma, Sanjeev;Pathak, Pathak
Source : Defence Science Journal ; Vol:50(2) ; 2000 ; pp 147-153
Subject : 621 Mechanical Engineering
Keywords : Seths transition theory;Fracture;Angular speed
Abstract : "Creep stresses and strain rates have been obtained for a thin rotating disc having variable density using Seths transition theory. It has been observed that a disc whose density decreases radially, rotates at higher angular speed, thus increasing the possibility of a fracture at the bore, whereas for a disc whose density increases radially, recedes the possibility of a fracture. The deformation is significant for a disc having variable density and rotating at higher angular speed. " |
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