FIELD: methods of materials thermal properties determination.
SUBSTANCE: in the method continuous thermal effect is carried out from linear source of heating that is installed in the plane of contact of examined and reference specimens. Excessive temperature is measured in one point at fixed distance from heating line, and in two additional points fulfillment of boundary conditions is monitored. For this thermal process inverse coefficient problem is solved with variation method on the basis of original problem of heat conductivity. When solving inverse problem, numerical method of calculation of discrepancy is used as weighted quadratic deviation of experimental data and discrete mathematic model, with account of moment of time of excessive temperature change rate maximum achievement.
EFFECT: increase of accuracy of solid materials thermal properties complex identification.
3 dwg
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Authors
Dates
2008-07-10—Published
2006-12-11—Filed