Mechanical Fracture of Aluminium Alloy (AA 2024-T4), Used in the Manufacture of a Bioproducts Plant

Aluminium alloy (AA2024-T4) is a material commonly used in the aerospace industry, where it forms part of fuselage aircraft and spacecraft thanks to its good machinability strength/weight ratio. These characteristics allowed be applied construction structure pilot plant produce biological extracts nano-encapsulated bioproducts for phytosanitary control diseases associated with microorganisms crops Theobroma cacao L. (Cacao). The mechanical design bolted support joints this implies knowing performance under fatigue conditions AA2024-T4 since use bolts entails placement circular stress concentrators sheet. geometric correction constant (Y) dimensionless numerical scalar correct intensity factor (SIF) at crack tip during propagation. This allows concentration modified as function specimen dimensions. In work, four compact tension specimens were modeled AA2024-T4, each one was by introducing second concentrator varying size between 15 mm, 20 25 30 respectively. Applying cyclic load 1000N, ratio R=-1 computational model tetrahedral elements, determined that highest SIF corresponds mm value close 460 MPa.mm0.5. Where propagation had maximum length 53 mm. Using these simulation data, possible process obtain mathematical calculates (Y). calculated data using new shown have direct relationship behavior obtained from simulation.