Multi-Physics Field Coupling and Extreme Condition Manufacturing

Aiming at the complex multi-field coupling characteristics in laser processing—involving thermal, mechanical, optical, plasma, and fluid fields—this research direction combines theoretical and experimental approaches. Multi-physics coupling numerical models are developed, incorporating transient heat conduction, thermo-elastic-plastic deformation, fluid dynamics, and plasma absorption and shielding effects. These models aim to elucidate the dynamic response of materials and the evolution of their microstructure under extreme conditions characterized by high temperatures, high pressures, and ultra-fast timescales. Particular emphasis is placed on understanding the mechanisms by which these extreme conditions influence material microstructure, residual stress distribution, and mechanical properties, providing a scientific foundation for process design and multi-objective optimization in complex laser processing scenarios.