Equation icon  Mixed mode fracture energy for composite testing

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Resource type: Equation
Description: For the Single Cantilever Beam (SCB) test, the specimen compliance (C=δ/P) is assumed to follow the equation C=C0 + ma3. Plotting C against a3 yields a linear graph with a gradient equal to m.

TeX format: {G_{I/Iic} = \frac{3ma^2P^2}{2B}}

GI/Iic {G_{I/Iic}} = mixed mode (I/II) fracture energy (J.m-2) {J.m^{-2}}
m {m} = gradient of line from plot of C vs a3 (N-1m-2) {N^{-1}m^{-2}}
a {a} = distance from end support to crack tip (m) {m}
P {P} = force (N) {N}
B {B} = sample width (m) {m}

Keywords: mixed mode • mode I • mode II • fracture • mechanical • testing • compostes • single • Cantilever • beam • SCB
Categories: Science approaches
Materials > Hybrids > Composites
Testing, analysis & experimentation > Mechanical testing
Created by: The University of Liverpool
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Date created: 18 August 2010
Date added: 14 September 2010
Resource ID: 3212