شماره ركورد كنفرانس :
4562
عنوان مقاله :
Analysis of crack propagation in mode-II in adhesive composite material/aluminum joints and extension of the experiments to effects of nanosilica on fracture toughness of adhesive
Author/Authors :
M. R Khoshravan Department of Mechanical Engineering - University of Tabriz, Tabriz , R Haghighat Department of Mechanical Engineering - University of Tabriz, Tabriz , M Moslemi Department of Mechanical Engineering - University of Tabriz, Tabriz
كليدواژه :
Fracture mechanics , Composite materials , Adhesive joints , Strain energy release rate , Nanosilica , Fracture toughness
عنوان كنفرانس :
The Bi-Annual International Conference on Experimental Solid Mechanics and Dynamics ۲۰۱۶
چكيده لاتين :
Assessment and evaluation of fracture characteristics are very important in adhesive joint for achieving a safety mode. In the present research fracture has been investigated in mode-II in adhesive composite material/aluminum joints. To achieve this aim ENF test have been performed for pure adhesive in different initial crack lengths to record load-displacement curves and critical strain energy release rate (SERR) has been obtained via Compliance Calibration Method (CCM) and Simple Beam Theory (SBT). Experimental resistance curves (R-curve) obtained by CCM and SBT showed good agreement. Then the experiments have been extended to adhesives that modified by nanosilica to determine how the nanoparticles affect adhesive toughness. The fracture energy increased to about 1297 J/m2 (60.3%) for the adhesive with 8 wt% of silica nanoparticles. Finally scanning electron microscopy (SEM) have been used to examine the fracture surfaces.
