This study develops a novel hyperbolic coupled moisture-heat model by extending the non-Fourier law and non-Fick law to solve a transient response of hygrothermoelastic field induced by internal heat and moisture sources in a circular disk. In contrast to classical diffusion theory, this model captures the finite propagation velocity of heat and moisture waves through relaxation time parameters. By utilizing Laplace transform and finite Hankel transform techniques, a semi-analytical method is formulated to determine temperature, humidity, displacement, and stress fields of a disk made of T300/...