Synopsis

Determines the total strain energy release rate for a 1-D strip under compression load, where the energy release is due to buckling. Note that the function returns zero if the applied strain is too small to cause buckling.

The calculation is based on: Chai, H., Babcock, C.D.,and Knauss, W.G.,"One-Dimensional Modeling of Failure in Laminate Plates by Delamination Buckling," International Journal of Solids and Structures,Vol. 17, No. 11,1983, pp1069-1083

Input

Enter the layer material properties as a list {Ex, Ey, Gxy, nuxy}:

Enter a stacking sequence {theta1, theta2, ...}: Help on advanced stack entry

Enter the default per-ply thickness

Enter the applied strain in parent laminate:

Enter a range of lengths of the debonded portion {minimum, maximum}:

Result

Strain Energy Release Rate: