ASTM D5528 (DCB) Mode I Interlaminar Fracture Toughness of Composites
ASTM D5528 is the test method for the Mode I (opening) interlaminar fracture toughness of unidirectional composites. To match this to your program, talk with our team.
What ASTM D5528 Covers
It measures the energy required to open a delamination in a composite, the Mode I fracture toughness (G_IC), a key damage-tolerance property.
How the Test Is Run
A double-cantilever-beam specimen with a starter crack is loaded to open the crack while load, displacement, and crack length are recorded, and G_IC is calculated from the results.
Why It Matters
Mode I toughness governs delamination resistance in composite structures; accurate load, displacement, and crack tracking are required.
Reading the Designation
Cited as ASTM D5528 with its edition. Confirm the version and specimen or fixture requirements before finalizing setup. To configure a composite testing setup, request a quote.
TensileMill CNC products for ASTM D5528
Our specimen-preparation systems and testing equipment compatible with ASTM D5528.
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Composite Testing Grips and Fixtures for Tensile, Shear, and Delamination Evaluation
Grips and fixtures for tensile, shear and delamination of composites
Set up ASTM D5528 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.