Abstract (EN):
Over the last years, a new structural joining technic widespread all industrial domain. In effect, aiming to raise competitively by producing a more aesthetic and safe transport product, there is the development of the adhesive bonding technology. Due to it is several advantages, this technic has gained a primordial role both in the aerospace and automotive industries. This joining technology is capable of joint several materials (for example, glass, metals and composite materials). Additionally, its major benefit by comparison to traditional joining tools as welding is to lead to a continuous joint with homogeneous stress distribution. Furthermore, present transport industries and especially those for bus construction utilizes polyurethane adhesives for door¿s aluminium alloys structures mounting. Nevertheless, the high solicitation of those special areas mains to cyclic fatigue problems. Thus, it is worthy to assess the aluminium bonded assemblies after fatigue loadings. For that reason, single-lap joint (SLJ) specimens, aluminium/ aluminium with one-component polyurethane adhesive, were made to handle the experimental process. Samples¿ preparation procedure requires a surface roughness with an arithmetic average height Ra ¿ 0.6 µm and an adhesive thickness e = 1 mm. Cyclic fatigue tests were conducted and a low scatter was exhibited in the results.
Language:
English
Type (Professor's evaluation):
Scientific
No. of pages:
7