ASTM D7137 - Compressive Residual Strength Properties of Damaged Polymer Matrix Composite Plates
- Composites
- Compression
- ASTM D7137
ASTM D7137 measures the compression strength of multidirectional composite coupons which have been previously subjected to an indentation according to test method ASTM D6264/D6264M, or drop-weight impact in accordance with test method ASTM D7136/D7136M. ASTM D7137 is mainly used by the aerospace industry to produce compressive property data for material specifications, research and development, quality assurance, and structural design and analysis.
Damage from out-of-plane forces is a major concern for design engineers working with composite materials. The impact portion of this test method simulates damage that the material is expected to incur in the field, such as a tool being dropped onto the surface of a plane during maintenance or a bird hitting the plane's wing. ASTM D7137 testing is important because the compressive strength of a composite plate is reduced even when an impact is not sufficient enough to cause visible damage. ASTM D7137 helps design engineers gain knowledge of the damage resistance and tolerance properties of composite plate. The desired test results are the ultimate compressive strength and the effective compressive modulus.
Materials Testing SystemThe compression portion of ASTM D7137 should be performed on a high force universal testing system such as Instron's 5980 Series equipped with an an AlignPro fixture and a custom compression after impact fixture. The material must first be subject to ASTM D7136/D1736M testing on an impact system such as Instron's 9400 Series drop towers. Drop towers must have an anti-rebound device to prevent a secondary impact.
ASTM D7137 Test Setup | |
---|---|
1) | 5900 Series Universal Testing System |
2) | Bluehill Universal Software |
3) | 2580 Series Load Cell |
4) | CP103712 Custom Test Fixture |

Brochure sur les essais de composites
Dispositif d’essai des composites - Compression après impact
Le dispositif « Boeing CAI » est utilisé pour des essais de résistance à l’impact des stratifiés composites en carbone et autres polymères renforcés en fibre.
Brochure sur les machines d'essai universelles à force élevée
Les systèmes à force élevée d’Instron comprennent des systèmes d’essais électromécaniques et hydrauliques à haute capacité. pour les applications de traction et de compression. Les capacités de force vont de 100 kN à 2000 kN.
Modèle au sol à doubles colonnes - Série 5980
Les modèles de sol de série 5980 sont couramment utilisés pour les essais les métaux et alliages à haute résistance, les composites avancés, les structures aérospatiales et automobiles, les boulons, les fixations et les aciers en plaques.