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Double Cantilever Beam Delamination Test

Interactive Mode I interlaminar fracture simulator: drive a double cantilever beam composite specimen open and watch a delamination crack propagate exactly when the energy release rate reaches the material's fracture toughness G_Ic.

Materials Science3DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

This simulator drives a Mode I double cantilever beam (DCB) test on a fiber-reinforced composite laminate — the standard ASTM D5528 method for measuring interlaminar fracture toughness. Two bonded plies with a pre-existing edge crack are pulled apart at a controlled rate; beam-theory compliance sets the load, and the moment the Irwin–Kies energy release rate G_I reaches the interface's fracture toughness G_Ic, the crack advances exactly as far as the Griffith criterion demands, reproducing the saw-toothed load–displacement trace real DCB tests record. Switch between carbon/epoxy, glass/epoxy and aramid/epoxy systems, tune the initial crack length, arm thickness and opening rate, and watch the crack tip, applied load and energy release rate respond in real time.

⚙ Under the hood

Drive a Mode I double cantilever beam test on a composite laminate and watch a delamination crack propagate exactly when the beam-theory energy release rate reaches the interface's fracture toughness G_Ic.

compositesfracture-mechanicsdelaminationmaterials-scienceaerospacebeam-theory

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install