Efficient High Strain Rate Testing: A Modular Approach with the Hopkinson Bar System

Release date:

2026-05-30

Author:

SHPB, Hopkinson Pressure Bar, high strain rate, material testing, high-temperature testing, modular design, large diameter SHPB

In the field of material dynamics, understanding mechanical properties under high strain rates is essential for predicting material behavior under impact, blast, and other extreme conditions. ZONEDE Instruments offers a comprehensive range of Split Hopkinson Pressure Bar (SHPB) systems — from room temperature to high temperature, small to large bar diameters, and single to multi-test configurations — serving universities, research institutes, and engineering laboratories worldwide.

Accurate Data, Direct from the Source Factory

ZONEDE’s SHPB equipment captures stress-strain curves at various strain rates and fits constitutive equations, providing essential physical parameters for numerical analysis. As a factory-direct supplier, we ensure high precision and reliability, helping researchers obtain more accurate test results in material mechanics.

Coaxiality: The Key to Accurate Testing

In a split Hopkinson test system, bar coaxiality is critical to data accuracy. ZONEDE uses a three-axis fine-tuning platform to precisely adjust the pressure bar in X, Y, and Z directions, ensuring one-dimensional stress equilibrium and balanced impact loading on the specimen. This design has been widely recognized by universities and research institutes.

Modular Design: One Machine, Multiple Test Setups

Traditional Hopkinson bar systems require extensive reconfiguration to change test specifications — costly and inefficient. ZONEDE’s modular quick-change design allows users to switch bar diameters from Φ10 to Φ20 in under 5 minutes simply by replacing the launch tube. This increases equipment utilization by up to 80%, significantly reducing capital and operating costs for university labs.

High-Temperature Testing: From Room Temperature to 1000°C

ZONEDE also offers a dedicated high-temperature system for Hopkinson tension-compression bars. Capable of heating specimens from room temperature up to 1000°C, it solves the technical challenges of dynamic tensile and compression testing under extreme heat. The system is widely used for studying the high-temperature mechanical properties of metals, ceramics, aerospace materials, and more — providing a reliable platform for materials science research.

Large Diameter Bars: The Right Choice for Concrete and Rock

For coarse-grained materials such as concrete and rock, standard bar diameters cannot meet the representative volume element requirement. ZONEDE offers Φ50 and Φ80 large-diameter Hopkinson pressure bar systems, built with a cast iron platform and high-strength spring steel bars. These systems are specifically designed for dynamic testing of large-size, coarse-grained materials, significantly reducing data scatter and improving test accuracy.

ZONEDE Instruments is committed to providing high-performance, highly flexible Hopkinson bar systems for materials researchers worldwide. Whether you need room temperature or high-temperature testing, small or large bar diameters, or a single test method versus multiple configurations, ZONEDE delivers professional and reliable solutions.

Visit our website to learn more about our products, or reach out to us through the comments section to discuss your testing requirements.

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