Uporedna analiza inženjerskih metoda u mehanici loma

Abstract

U ovom radu je analiziran Kingov model opruga u nizu za površinske prsline i pokazano je da se, polazeći od analitičkih izraza datih u modelu, mogu izvesti interesantne zavisnosti. Kingov model je upoređen sa modelom opruga u nizu Rajsa i Livia. Pokazane su značajne sličnosti ovih modela, ali Kingov model proširuje primenu pristupa na elastično-plastičnu oblast. Analizirani su i FAD zasnovan na EPRI pristupu, kao i SINTAP method.

In this paper King's line spring model for surface cracks is analyzed and it is shown that interesting relations can be derived starting from analytical expressions of the model. King's model is compared with the line spring model of Rice and Levi. Significant similarities between two models are shown, but King's model extends the application of the approach to elastic-plastic region. FAD based on EPRI approach and SINTAP method are also analyzed.