Test Fixtures for ASTM C393 Model: G-ASTM-C393
Sandwich Flexure (Short Beam).
Standards
G22
Technical Specifications
| Specification | Value |
|---|---|
| Model | G-ASTM-C393 |
| Industry Std | ASTM C393 |
| Test Type | Standards |
| Family Id | G22 |
| Compat Machine If | 16M |
| Interface Description | 15.9mm Female Cup with 8mm Crosspin |
| Fixture If Gender | 16F |
Interface & Compatibility
15.9mm Female Cup with 8mm Crosspin
Expert Commentary
Core Shear Properties of Sandwich Constructions by Beam Flexure. This is a 3-point bend test on a Short Beam. The goal is to make the beam so short that it is Shear Critical rather than Bending Critical. The engineering formula provided in C393 is complex, involving the Face Sheet Thickness and the Core Thickness to derive the shear stress. MTO’s Composite Module software has these formulas pre-loaded. The lead conversion strategy here is the Multi-Span Flexure Base—a single fixture that can be adjusted for C393 (Short Span) and then expanded for ASTM D790 (Long Span Plastic Flexure), providing maximum laboratory ROI for our corporate entity.