crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 116700

Zbornik radova

Autori: Jecić, Stjepan; Beer, Rudolf; Kodvanj, Janoš; Fleischmann, Martin
Naslov: 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 )
Izvornik: Proceedings of XVII IMEKO World Congress Metrology in the 3rd Millenium / Ilić, D. ; Boršić, M. ; Butorac, J (ur.). - Zagreb : Hrvatsko mjeriteljsko društvo ; Croatian Metrology Society , 2003. 1935-1938.
Skup: XVII IMEKO World Congress Metrology in the 3rd Millenium
Mjesto i datum: Dubrovnik, Hrvatska, 22-27.06.2003.
Ključne riječi: photoelasticity; gamma irradiation; shrinking of polymers
( 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.
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: 0120004
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Strojarstvo



  Verzija za printanje   za tiskati


upomoc
foot_4