Addressing the aforementioned issues, this book presents a scaled electromagnetic-driven SHPB experimental technology and device. It reveals the multi-parameter coupling mechanism between the projectile’s muzzle energy and various factors such as the electromagnetic coil inductance, energy storage capacitor, discharge voltage, and projectile position, and analyzes the coupling relationships among these parameters. The book also introduces a novel electromagnetic-driven SHPB experimental technology and device with continuously adjustable voltage, proposing techniques and methods for mitigating the interference and noise of electromagnetic signals on strain waves. It addresses issues such as barrel heating and magnetic loss due to the eddy current effect in metal barrels. By overcoming the alignment defect caused by the projectile’s self-weight and enabling precise control over a wide range of strain rates, the technology achieves non-contact, real-time, dynamic, and full-process data acquisition for mechanics, optics, temperature, and other parameters.

Through dynamic behavior testing of materials such as rock and concrete, the author verifies the reliability of this novel electromagnetic-driven SHPB experimental technology and device. This equipment can be applied to dynamic mechanical property testing of structural damage, material energy consumption, and mechanical collisions in aerospace, underground engineering, automotive engineering, and various civil engineering fields, offering broad promotion and application value.

This book summarizes and enriches the latest research findings in Hopkinson Bar experiments, as well as impact dynamics theory, analytical methods, and innovative technologies for rock-like materials. The book is divided into 4 chapters including such features as Chapter 1: New Test Device (Shuren Wang; Jian Gong), Chapter 2: Constitutive Relation (Shuren Wang; Jian Gong), Chapter 3: Dynamic Properties (Shuren Wang; Jian Gong, Xinyu Wang), and Chapter 4: Mechanical Performance (Shuren Wang; Jian Gong).

This book is of innovative, practical, and rich in content, providing valuable reference and insights for the experimentalists engaged in Hopkinson Bar experiments and dynamic mechanical property testing of various materials, as well as teachers, students, and field technicians from related universities and institutions.

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