NUMERICAL-EXPERIMENTAL EVALUATION OF A HYPERELASTIC POLYURETHANE ADHESIVE

This article presents the results of experimental tests carried out on a polyurethane hyperelastic adhesive. The Mooney-Rivlin, Ogden and Yeoh models were analyzed between others, with different order parameters using finite element method Ansys V17.1 package, aim evaluating convergence general model, to subsequently manufacture specimens perform uniaxial stress tests. information obtained from was supplied curve fitting model for several models, seeking obtain correlation these New analyzes performed materials considered curves adjusted. studied numerical closest reality selected, observing that 1st presented significant deviations -30% 60% in stiffness, 3rd -5% -30%, while -3.5% 25% -3% 20%, before approaching critical load, where deviation 0.66% -3.59%. 2 parameter Mooney-Rivlin 3.9% when it approaches but values -2.04% 15% during development test, so proved be most appropriate analyze material investigated this work. Key Words: Hyperelastic material, Experimental Methods, Numerical FEA