ASTM C393
Engineered in strict accordance with ASTM C393, our core shear properties fixtures are designed to evaluate the flexural stiffness and core shear strength of flat sandwich constructions. Available in two robust steel configurations — featuring universal alignment joints, roller-connected loading pads for continuous contact, and adjustable spans — these fixtures ensure precise load distribution and perfect axial alignment. Capable of handling loads up to 30 kN and operating in extreme temperatures (-70 to 300 °C), they provide critical design allowables and quality control data for advanced bonded sandwich panels in the aerospace and marine industries.
Overview
Engineered in strict accordance with the ASTM C393 standard (excluding measurement devices), this fixture is designed to evaluate the flexural properties of flat sandwich constructions. It is primarily used to determine the core shear strength and core-to-facing shear strength by subjecting the sandwich panel to flexural loading. When equipped with a deflectometer, it can also measure the core shear modulus. This test method provides critical design allowables, material specifications, and R&D data, and serves as an essential tool for quality control in bonded sandwich panels.
Design Features and Benefits
Applications
Technical Specifications:
| Parameter | ACAC393A0 | ACAC393C0 | |
| 1 | Part No. | 1JAASC393X02 | 1JAASC393X04 |
| 2 | Max Load Capacity | 30 kN | 30 kN |
| 3 | Upper Loading Pad Width | 25 mm | 25 mm |
| 4 | Lower Support Pad Width | 25 mm | 25 mm |
| 5 | Upper Span | 50, 75 mm | 260 mm |
| 6 | Lower Span | 150 mm | 320 mm |
| 7 | Specimen Length | 200 mm (8 in) | 200 mm (8 in) |
| 8 | Specimen Width | 75 mm (3 in) | 75 mm (3 in) |
| 9 | Specimen Thickness | 30 mm | 30 mm |
| 10 | Fixture Dimensions (H × W × D) | 423 × 250 × 75 mm | 468 × 400 × 80 mm |
| 11 | Weight | 11.3 kg | 36 kg |
| 12 | Operating Temperature | -70 to 300 °C | -70 to 300 °C |
| 13 | Built Material | Steel | Steel |
| 14 | How to Use / Interface | Φ20, Φ31.75, Φ40 mm | Φ20, Φ31.75, Φ40 mm |
Why Choose Us?
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• We provide 7×24 technical consultation, operator training, and timely software updates.
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• We offer remote monitoring of equipment status, enabling rapid diagnosis and resolution when abnormalities occur.
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• Keeping up with the latest development of widely adopted international standards from ASTM, ISO, etc. to ensureyour test results relevant and credible
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• Maximizing your lab investment returns with tailored solutions to your unique needs from cost effective hardware tosoftware customization
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• We treat everyone, be it clients, colleagues or partners, with honesty and sincerity.
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• Staying at the forefront of testing technologies that continuously improve test accuracy, repeatability, and eficiency
