Abstract: The fibre/resin layers in the unidirectional aramid aluminium laminate were considered as viscoelastic layers and the modulus was expressed by a function of temperature and time. In order to determine the constant parameters in the function dynamic mechanical property of the fiber/resin layers was tested under dynamic load with different frequencies. The test temperature ranged from room temperature to 200℃. After the parameters in the function were determined, the transverse residual stress in the laminate was calculated. In order to examine the calculated results, strain gages were embedded in the unidirectional aramid aluminium laminates to measure the transverse residual stresses. The calculated results are in good agreement with the experimental values.

Key words: laminates, residual stress, resins, viscoelasticity, analysis, measurement