Case Studies

The numerical analysis for stress, strain and electromagnetic response in MS layer has been presented
in Table 34.2.

Table 34.2. Summary of theoretical and experimental results

The experimental strain value of 1333 micron was reported for 7 layered balanced orthotropic composite at 60 N load by Guirguitiu et al [2001]. Convergence analysis for stresses in various cross ply models predicted a value close to 20 MPa. The stress and strain values predicted for balanced orthotropic model in the present analysis (12.71 MPa and 1348m) are very close to the corresponding values (12.72 MPa and 1347m) obtained by Guirguitiu et al [2001]. Numerical analysis were conducted for a number of cross ply arrangements by doubling the number of plies while decreasing the thickness of individual plies to a half so as to keep the overall thickness of the composite laminate same.