INFLUENCE OF TEMPERATURE ON THE TENSILE BEHAVIOR OF EPOXY REINFORCED WITH CABON NANOTUBES

Silvia Daou Vidal¹; Joao Marciano Laredo dos Reis¹

¹ UFF

doi:10.20906/CPS/COB-2015-1201

Resumo

The tensile behavior of Epoxy adhesive reinforced with carbon nanotubes under different temperatures was studied. The experiments were conducted under a wide range of temperatures (25ºC to 90ºC). Temperature greatly influences the mechanical response of Epoxy adhesive reinforced with carbon nanotubes. In particular, the modulus of elasticity and the ultimate tensile strength are found to decrease with increasing temperature. Also, a one-dimensional phenomenological model able to yield a physically realistic description of temperature sensitivity and damage observed in tensile tests that can be used in engineering problems is proposed. Just two tests performed at different constant strain rates are needed to identify the material parameters that appear in the model. The experimental results are presented and compared to model estimations of damage progression and show good agreement.

Palavras-chave: Temperature; tensile; carbon nanotube