ASTM C365 covers the flatwise compressive properties of sandwich cores, giving compressive strength and modulus through the thickness of the core. To match this to your program, talk with our team.
What ASTM C365 Covers
It determines how a sandwich core carries load perpendicular to the facings, reporting flatwise compressive strength and modulus for honeycomb, foam, and similar cores.
How the Test Is Run
A core or sandwich sample is compressed flatwise between platens at a controlled rate, and the strength and modulus are calculated from the load-deflection response.
Why It Matters
Flatwise compression governs how a sandwich panel resists through-thickness loads; flat, parallel platens and accurate deflection measurement are essential.
Reading the Designation
Cited as ASTM C365 with its edition year. Confirm the edition and specimen requirements before finalizing fixtures. To configure a compression setup, request a quote.
Related Standards
ASTM C297 covers flatwise tension of sandwich constructions.
Request a Quote
Setting up flatwise compression of sandwich cores? Request a quote and our team will help you build a system matched to your core type and panel size.
TensileMill CNC products for ASTM C365
Our specimen-preparation systems and testing equipment compatible with ASTM C365:
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Compression Fixtures for Axial Load Testing of Rigid Specimens
Compression platens for axial load testing of rigid specimens
Bring ASTM C365 testing in-house with TensileMill CNC
Adding capacity or replacing older equipment? TensileMill CNC can support your ASTM C365 program. For this work we supply universal testing machines with compression platens and anti-buckling fixtures. Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.