Editorial for the Special Issue "Materials under High Pressure".

This document is an editorial for a special issue of the journal "Materials" focused on the topic of "Materials under High Pressure." It emphasizes the interdisciplinary nature of studying materials under extreme high pressure and mentions various scientific disciplines involved in this field. The special issue includes fourteen peer-reviewed research articles covering topics such as processing technology, characterization, testing, theoretical modeling, and simulation. The document provides a brief summary of some of the research findings presented in the special issue, including investigations on the dynamic mechanical properties of materials, dispersion characteristics driven by explosion, detonation-driven deformation and jet formation, and shock-induced chemical reactions in reactive materials. The document also discusses various studies on materials under high pressure, including the strain-softening effect of THV-based reactive materials and the strain-strengthening effect of PTFE-based reactive materials. It explores the control of shock-induced energy release characteristics in PTFE/Al-based energetic materials through experimentation and theoretical analysis. The mechanical properties, constitutive behaviors, and failure criteria of aluminum-polytetrafluoroethylene-tungsten reactive materials are investigated. Additionally, an impact-initiated chemical reaction model is proposed to describe the ignition and energy release behavior of Al/PTFE reactive materials. The document also includes studies on structural damage and material failure caused by high-velocity impact, such as the vibration features and fault mechanism of electronic components under shock load and the dynamics of a space harpoon impacting a target plate. The authors hope that this collection of case studies [Extracted from the article]