Fast Fourier transform-based homogenisation of gas hydrate bearing sediments

Modelling the mechanical response of gas hydrate bearing sediments has become a crucial issue in the environmental field. Insufficient experimental data due to the instability of the gas hydrates make it difficult to develop accurate mechanical constitutive models. This paper suggests a numerical homogenisation method to simulate the response of composite materials like gas hydrate bearing soils. The homogenisation technique is based on fast Fourier transform and thus can be used with real images of soils. This method is applied here to both granular and fine soils for various volume fractions and types of gas hydrate inclusions.