Pregled bibliografske jedinice broj: 116700
Shrinking of polymers in technical problems consisting of two different parts determined by 3D Photoelasticity using Gamma irradiation
Shrinking of polymers in technical problems consisting of two different parts determined by 3D Photoelasticity using Gamma irradiation // Proceedings of XVII IMEKO World Congress Metrology in the 3rd Millenium / Ilić, D. ; Boršić, M. ; Butorac, J (ur.).
Zagreb: Hrvatsko mjeriteljsko društvo, 2003. str. 1935-1938 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
Shrinking of polymers in technical problems consisting of two different parts determined by 3D Photoelasticity using Gamma irradiation
Autori
Jecić, Stjepan ; Beer, Rudolf ; Kodvanj, Janoš ; Fleischmann, Martin
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of XVII IMEKO World Congress Metrology in the 3rd Millenium
/ Ilić, D. ; Boršić, M. ; Butorac, J - Zagreb : Hrvatsko mjeriteljsko društvo, 2003, 1935-1938
Skup
XVII IMEKO World Congress Metrology in the 3rd Millenium
Mjesto i datum
Dubrovnik, Hrvatska, 22.06.2003. - 27.06.2003
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
photoelasticity; gamma irradiation; shrinking of polymers
Sažetak
To solve spatial technical problems by three dimensional photoelasticity it is necessary to fix the optical effect in the model. In order to avoid the well known disadvantages of the classical freezing method ionising irradiation is used for that purpose [1, 2]. With this method it is not necessary to enlarge the scaling-factor for the displacement which is in some cases very important especially when shrinking is used to develop the fringe pattern. In addition fixation with ionising irradiation can be carried out without elevated temperatures. The most important advantage compared with the freezing method is given by the fact that Poisson&#8217 ; ; s ratio of the polymers is in this way practically the same as in the simple two dimensional photoelasticity. This is very important because using the classical freezing method temperature treatment above the glass temperature is needed and in this temperature range Poisson&#8217 ; ; s ration of the polymer is practically the same as in plasticized zones so that by using the classical freezing method it is not possible to distinguish between the elastic and the plasticized zones of the model. The mentioned features were already shown in case of two dimensional contact problem [3]. New materials introduced by Beer at all [2] opened additional possibilities in modelling more complex problems. However dealing with models consisting of two (or even more) different parts we have to keep in mind that shrinking in such models causes residual stresses and for that reason an accompanying rheological process is going on.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
