Temperature-stress-deformation coupled heat and humidity cycle test device and method

The invention discloses a temperature-stress-deformation coupled heat and humidity cycle test device and method. The device mainly comprises a loading system, a soaking and drying system and a detection system, the loading system comprises a base, a lower cushion block, a sample and an upper cushion block are sequentially placed on the base from bottom to top, and the upper cushion block is pressurized by a pressurizing system at the upper part; the soaking and drying system comprises a water tank with a water inlet at the upper end and a water outlet at the bottom end; one side of the water tank is open and the open end surface is hermetically connected with the sample side surface; a heating pipe is arranged in the water tank; the detection system comprises a displacement sensor, a fiber bragg grating temperature strain sensor and an acoustic emission sensor; the displacement sensor is used for monitoring the deformation degree of the sample; the fiber bragg grating temperature strain sensor is used for mon