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Pre-crack

P. Double Cantilever Beam (DCB) test geometry Used to determine mode I failure strength of composite materials. δ. End block. h. Pre-crack. 2h. B. a. P. Beam Theory Method:. (J/m 2 ). End Notch Flexure (ENF) test geometry

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Pre-crack

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  1. P Double Cantilever Beam (DCB) test geometry Used to determine mode I failure strength of composite materials δ End block h Pre-crack 2h B a P Beam Theory Method: (J/m2)

  2. End Notch Flexure (ENF) test geometry Used to determine mode II failure strength of composite materials a P B Pre-crack 2h L L Beam Theory Method: (J/m2)

  3. Mixed-mode (I/II) Interlaminar Fracture test geometry Used to determine mixed mode interlaminar failure strength of composite materials B L a P δ Pre-crack 2h Mixed-mode fracture Energy: (J/m2)

  4. Single Cantilever Beam (SCB) test geometry Used to determine skin debonding energy for thick skinned composite sandwich structures B Clamp P Core material Pre-crack Clamp a Mixed-mode fracture Energy: (J/m2)

  5. Centre Notch Flexure (CNF) test geometry Used to determine skin debonding energy for thin skinned composite sandwich structures B P P Hole δ Pre-crack a Mixed-mode fracture Energy: (J/m2)

  6. Interlaminar Shear Strength (ILSS) test geometry Standardised three point bend test used to determine interlaminate shear strength for composite structures P B 10mm δ 2mm 20mm Interlaminate Shear Strength: (J/m2)

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