Two-dimensional SHPB test device

By designing a two-dimensional SHPB test apparatus, using a wedge-shaped two-wave bar and a balance bar structure to transmit orthogonal compression waves, and using a vibration damper to reduce transverse wave vibration, the problem of not being able to directly measure the dynamic mechanical properties of materials under two-dimensional or three-dimensional stress states in existing technologies has been solved, and highly reliable test data acquisition has been achieved.

CN224266841UActive Publication Date: 2026-05-22GUANGZHOU CITY POLYTECHNIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU CITY POLYTECHNIC
Filing Date
2025-05-22
Publication Date
2026-05-22

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Abstract

The utility model discloses a two-dimensional SHPB test device, and belongs to the field of material impact dynamics tests. Comprising two incident rods, two transmission rods and a two-dimensional loading mechanism, and the incident rods and the transmission rods are uniformly divided into two groups and are symmetrically arranged on two sides of a test sample; the incident bar and the transmission bar in each group are coaxial and are oppositely arranged on two sides of a test sample; each incident bar is provided with a first end and a second end, the two-dimensional loading mechanism is provided with two loading ends, each loading end corresponds to one incident bar and is in contact with the first end of the corresponding incident bar so as to apply an axial load to the corresponding incident bar, and the second end of each incident bar is in contact with a stress surface of a test sample, so that when the dynamic mechanical property of the test sample is tested, the loading ends of the loading ends are in contact with the stress surface of the test sample. The two incident bars can transmit the load applied by the two-dimensional loading mechanism to a test sample, so that the test sample is subjected to two orthogonal compression waves with the same size at the same time.
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