The Special Issue "Dynamic Behavior of Materials" is a collection of fifteen peer-reviewed research articles focusing on the dynamic behavior of various materials. The articles cover a wide range of topics, including processing technology, state-of-the-art characterization, testing, theoretic modeling, and simulation. The dynamic behavior of materials under rapid loads differs significantly from that under static or quasi-static conditions, involving high-strain-rate deformation mechanics and dynamic responses. Key findings include: 1. **Microstructural Evolution**: Studies on the microstructural evolution of materials under dynamic deformation, such as a near-α titanium alloy and fine-grained D6A steel, show that deformation twins play a crucial role in enhancing strength and coordinating plastic deformation. 2. **Equations of State and Constitutive Models**: Research on the equations of state and constitutive models for materials under high-strain-rate conditions, including the Johnson–Cook (J–C) model, highlights the importance of incorporating adiabatic temperature rise terms to accurately describe dynamic behavior. 3. **Material and Structure under High-Velocity Impact**: Investigations into the dynamic behavior of materials under high-velocity impact loads, such as reactive materials and composite armor, reveal the influence of material properties and structure on penetration and damage mechanisms. 4. **Explosive-Material Interaction**: Studies on the interaction between explosion products and materials, including the formation of reactive material shaped charges and the jet/EFP formation process, provide insights into the complex dynamics of high-strain-rate events. 5. **Theoretic Modeling and Simulation**: The use of theoretic modeling and simulation, such as finite element and numerical methods, is essential for understanding and visualizing dynamic processes that are difficult to observe experimentally. The Special Issue aims to provide a comprehensive overview of recent research findings in the dynamic behavior of materials, offering valuable insights for both academic and practical applications.The Special Issue "Dynamic Behavior of Materials" is a collection of fifteen peer-reviewed research articles focusing on the dynamic behavior of various materials. The articles cover a wide range of topics, including processing technology, state-of-the-art characterization, testing, theoretic modeling, and simulation. The dynamic behavior of materials under rapid loads differs significantly from that under static or quasi-static conditions, involving high-strain-rate deformation mechanics and dynamic responses. Key findings include: 1. **Microstructural Evolution**: Studies on the microstructural evolution of materials under dynamic deformation, such as a near-α titanium alloy and fine-grained D6A steel, show that deformation twins play a crucial role in enhancing strength and coordinating plastic deformation. 2. **Equations of State and Constitutive Models**: Research on the equations of state and constitutive models for materials under high-strain-rate conditions, including the Johnson–Cook (J–C) model, highlights the importance of incorporating adiabatic temperature rise terms to accurately describe dynamic behavior. 3. **Material and Structure under High-Velocity Impact**: Investigations into the dynamic behavior of materials under high-velocity impact loads, such as reactive materials and composite armor, reveal the influence of material properties and structure on penetration and damage mechanisms. 4. **Explosive-Material Interaction**: Studies on the interaction between explosion products and materials, including the formation of reactive material shaped charges and the jet/EFP formation process, provide insights into the complex dynamics of high-strain-rate events. 5. **Theoretic Modeling and Simulation**: The use of theoretic modeling and simulation, such as finite element and numerical methods, is essential for understanding and visualizing dynamic processes that are difficult to observe experimentally. The Special Issue aims to provide a comprehensive overview of recent research findings in the dynamic behavior of materials, offering valuable insights for both academic and practical applications.