Open AccessDynamic fast fracture of smartphone screens
Author(s) -
И. А. Магомедов,
Ирина Орлова,
O. I. Lisichko,
S. Kh Alikhadzhiev
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/378/1/012064
Subject(s) - sapphire , fracture mechanics , fracture (geology) , materials science , displacement (psychology) , composite material , finite element method , structural engineering , engineering , optics , physics , psychology , laser , psychotherapist
This thesis is focused on comparing fast fracture of two screens of smartphones (Apple 5 and Samsung alpha). The analysis is done using the novel method, which is eXtended Finite Element Method (XFEM) and a cohesive element (CE) using software Code_Aster and Salome Meca. An apple screen (Sapphire) illustrated high resistance to fracture, while Samsung (Gorilla Glass) fractured with applied force is smaller than the one applied to Apple (Sapphire). However, Gorilla Glass wins in crack propagation by demonstrating better performance. We worked out that the size of screen also influenced fracture. Gc influence on crack propagation was observed. The results illustrated that by increasing Gc the crack propagation will be reduced and vice versa. In addition Gc change will have more influence when applied force is smaller. Influence of other cracks on initiation new crack was also analysed. The results showed that the initial cracks might increase displacement of deformed body, but reduce crack propagation. The results also showed that Gorilla Glass tends to be deformed more if compared to Sapphire.