CTE has built up a significant fracture toughness capability for testing  composites and adhesive bonds and can test:-

• Mode I Fracture Toughness to ISO 15024, ASTM D5528, BS 7991, ISO 25271, BS EN 6033…
• Mode II Fracture Toughness ISO 15114, ASTM D7905, BS EN 6034…
• Mixed Mode Fracture Toughness ASTM D6671
• Plastics KIc Testing to ASTM D5405 single-edge-notch bending (SENB) and compact tension (CT)

CTE performs all fracture toughness testing using Imetrum Optical Extensometers which aid in the alignment of the load and displacements with the crack growth images which gives highly accurate fracture toughness data.

CTE also has the capability for then manufacturing of infused and bonded fracture toughness specimens

Please contact us to discuss your fracture toughness testing requirements.