ASTM C365

Engineered in strict accordance with ASTM C365, our flatwise compressive properties fixture is designed to determine the compressive strength and modulus of sandwich core materials. Featuring a self-aligning spherical seating mechanism to ensure uniform load distribution and engraved platens for quick specimen centering, it delivers highly accurate and repeatable test results. Designed to integrate seamlessly with dual extensometers or dial indicators, this robust steel fixture handles loads up to 100 kN and operates in extreme temperatures (-70 to 300 °C). It provides critical compressive data essential for the structural design and quality control of advanced sandwich panels in the aerospace and transportation industries.

Overview

Designed in strict accordance with the ASTM C365 standard, this fixture is engineered to determine the flatwise compressive strength and modulus of sandwich cores. By integrating with an extensometer or dial indicator, it enables highly accurate measurement of the material's compressive elastic modulus. These precise measurements provide essential data support for the structural design of sandwich panels, ensuring the ultimate safety and reliability of the finished products.

Design Features and Benefits

Self-Aligning Spherical Seating:
The lower fixture features a spherical seating design that automatically aligns with the specimen surface during testing, ensuring uniform load distribution.
Engraved Centering Lines:
The platen surfaces are engraved with concentric guidelines corresponding to standard specimen sizes, facilitating quick and accurate specimen positioning.
Precision Strain Measurement:
Can be equipped with dial indicators or electronic extensometers to precisely measure compressive modulus and deformation.

Applications

Primary Purpose:
Used to evaluate the flatwise compressive strength and compressive modulus of sandwich core materials.
Material Evaluation:
Essential for the structural design, quality control, and material acceptance of sandwich panels used in aerospace, transportation, and construction applications.

Technical Specifications:

Parameter Specification
1 Model Number ACAC365A0
2 Part No. 1JAASC365X01
3 Max Load Capacity 100 kN
4 Specimen Size (mm) 25 × 25, 50 × 50, 75 × 75
5 Upper/Lower Platen Diameter Φ150 mm
6 Fixture Dimensions (H × W) 215 × 264 mm
7 Weight 10.6 kg
8 Operating Temperature -70 to 300 °C
9 Built Material Steel
10 How to Use / Interface Φ31.75, Φ40 mm
11 Test Standard ASTM C365/C365M-16
12 Configuration Laminate compression fixture (31.75 mm adapter); supports dual extensometers or dual dial indicators (brackets included as standard)

Related Products:

Part No. Model Code Description
1PZLCG000140 LCE25/5/5 Electronic extensometer
3PZLYB000021 543-791B Mitutoyo dial indicator (12.7 mm)

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