VIRTUAL TESTING / CDS WORKBENCH
ASTM C365 · Core flatwise compression
Measures sandwich-core compression strength and stiffness across the core thickness.
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Recorded instructional case · Workbench captures and saved calculation data, October 2026. This website preview does not run the test.
Specimen & fixture
Calculated assessment
Force magnitude (N)
Through-thickness specimen deformation (mm)
View plotted values
| Series | Through-thickness specimen deformation (mm) | Force magnitude (N) |
|---|---|---|
| Elastic specimen response | 0 | 0 |
| Elastic specimen response | 0.08 | 999.9999999999999 |
Set up in CDS
- Link the core-only stack and platen-loaded plan area.
- Enter core Ez and measured flatwise compression strength.
- Apply the compression force magnitude.
- Review nominal stress, strain and core shortening.
Inputs for this recorded case
- 50 × 50 × 20 mm
- 1 core layer / 20 mm
- Selected force 1000 N
- Explicit source calibration/properties
These are teaching-case inputs, not ASTM-prescribed specimen dimensions or acceptance criteria.
Response & readout
Stress magnitude (MPa)
Strain magnitude (—)
View plotted values
| Series | Strain magnitude (—) | Stress magnitude (MPa) |
|---|---|---|
| Supplied elastic constitutive law | 0 | 0 |
| Supplied elastic constitutive law | 0.004 | 0.4 |
- Loaded area
- 2,500 mm²
- Compressive nominal stress
- 0.4 MPa
- Compressive strain magnitude
- 0.004 —
All recorded readouts
- Loaded area
- 2,500 mm²
- Compressive nominal stress
- 0.4 MPa
- Compressive strain magnitude
- 0.004 —
- Through-thickness specimen deformation
- 0.08 mm
- Demand / measured strength
- 0.2 —
- Linked specimen thickness
- 20 mm
Elastic core compression. Crushing, densification and platen friction are excluded.
About this ASTM reference
Standard Test Method for Flatwise Compressive Properties of Sandwich Cores
Active catalog edition checked October 10, 2026. The official standard defines the physical method; the CDS example below has a narrower modeling scope. Full procedures remain on ASTM’s site.
Find this setup in Workbench
Opens the connected guided study. Select the matching ASTM setup in the Test menu to inspect its fixture.
What this CDS case represents
Read the actual ASTM standard ↗Elastic core compression. Crushing, densification and platen friction are excluded.
This analytical or measured-data model provides its own curves and metrics. Synchronized failure playback is not supported; a mounted fixture view does not imply that contact, crack growth or impact history is solved.
Instructional model comparison, not experimental validation or ASTM certification. Physical testing requires the licensed standard and a qualified test program.