A wide variety of adhesive joints architectures is available, offering several options to the designers, although most common are single-lap (SLJ), double-lap joints, and scarf joints. Additional designs, less used studied stepped-lap, T-joints tubular find application in different types industry, such as aircraft bond stiffeners skin cars between B-pillar rocker. This work numerically evaluate...

The problem of devising meaningful and reliable methods for nondestructive evaluation of adhesively bonded joints has been the subject of considerable effort for many years. It remains an important and unsolved problem. The use of conventional NOT methods involving ultrasonics is not entirely satisfactory because the thickness of a bond line is small compared with typical acoustic wavelengths a...

A numerical study of the elastic-plastic mode-II fracture of adhesive joints is presented in this paper. A traction-separation law was used to simulate the mode-II interfacial fracture of adhesively-bonded end-notched flexure (E.N.F.) specimens loaded in three-point bending, with extensive plastic deformation accompanying failure. The fracture parameters for the traction-separation law were det...

Structural acrylic adhesives have been attracted special interest because theses can be cured at room temperature and bonded to oily substrates. To use adhesively joints more widely for structural use, it is necessary clarify fatigue crack propagation characteristics. In this study, growth rate was measured using unidirectional woven CFRP/aluminum double cantilever beam (DCB) with an adhesive. ...

Adhesively bonded structure and bonded composite repairs are often exposed to aviation fuel during service. A relatively limited number of studies examining the influence of fuel and the many additives it contains have been made. The current report details experimental studies that have examined the influence of fuel and common additives such as lubricity and deicing agents on the fracture toug...

The influence of laser surface structuring on the formation and internal strength electrodeposited ZnNi coatings steel sheets was investigated. Surface by extended direct interference patterning (xDLIP) used to modify cohesive in layer. An SEM analysis crystal structures shows perpendicular nucleation during layer areas crosslinked crystalline structures, which results an interlocking within in...

An experimental investigation of the load-bearing behavior and ductility FRP hybrid double-lap joints composed both adhesively-bonded bolted connection parts was conducted. Amongst other things, effects adherends’ fiber architecture (uni- or multidirectional), adhesive type (stiff flexible), displacement rate were examined. The resistances with flexible corresponded to full summation bonded par...