Претраживање
Приказ резултата 91-100 од 521
Temperature and moisture distributions inside the layer of moist material placed on hot isothermal surface
(Inzhenerno-Fizicheskii Zhurnal, 2001)
The problem of contact drying of a layer of moist material placed on a hot isothermal surface is considered. A system of heat and mass transfer equations and equations for the initial and boundary conditions are proposed. ...
Crack significance evaluation with special reference to welded structures
(Plenum Publ Corp, New York, 1996)
Fracture mechanics parameters (stress intensity factor K-I and its critical value K-Ic, crack opening displacement, and the contour J integral) are originally defined for static and quasistatic loading conditions. On the ...
Numerical and experimental investigation of cooling rates in a spherical casting
(FMJ Int Publications Ltd, Redhill, 1994)
Numerical and experimental investigation of cooling rates in spherical casting (rolling balls made of white alloyed iron) was performed. Temperature history was determined by measurement, using thermocouples (Pt-Pt/Rh), ...
Analysis of the unstable fracture behaviour of a high strength low alloy steel weldment
(Pergamon-Elsevier Science Ltd, Oxford, 2004)
Local brittle zones (LBZ) cause the unstable fracture behaviour of weld metals. This threatens the safe service of welded structures and makes structural assessment procedures difficult. Therefore, the unstable fracture ...
Micromechanical coupled study of crack growth initiation criterion in pressure vessel steel
(Strength of Materials, 2004)
We present results of the combined design-theoretical investigation of the mechanism of crack growth at the onset of ductile fracture of NPP reactor pressure vessels. Micromechanical approach to the prediction of ductile ...
Determination of ductile crack initiation by magnetic emission and potential drop techniques using pre-cracked Charpy specimens
(European Structural Integrity Society, 2002)
Magnetic emission (ME) and potential drop (PD) techniques were used for instrumented Charpy impact testing in order to determine critical crack initiation properties of standard pre-cracked three-point bending specimens ...
Formation of fouling layers on a heat exchanger element exposed to warm, humid and solid loaded air streams
(Elsevier Science Inc, New York, 2002)
In consideration of the very high energy consumption of drying processes it is astonishing and disadvantageous that the majority of industrial dryers are offered and operated without energy recovery. The avoidance of fouling ...
Case study of supporting tubes failure
(Kluwer Academic Publishers, 2006)
Fracture toughness of alloyed austempered ductile iron (ADI)
(Kluwer Academic Publishers, 2006)
An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach
(Fatigue & Fracture of Engineering Materials & Structures, 1995)
Abstract—Three different fracture mechanics approaches were applied to two full‐scale penstock model tests. The two models were produced, using a Sumiten 80P HSLA steel (minimum yield strength 700 MPa and minimum ultimate ...