Effect of lay-up of sub-waveguide on transmission of S(o) mode from main waveguide to sub-waveguides.
This paper focuses on transmission characteristics of fundamental symmetric Lamb mode (So) at the junction of a main waveguide and sub-waveguides in composite laminates. Numerical simulations on transmission of So from the main to sub-waveguide revealed that transmission factors of the modes depend on stacking sequence of plies in the waveguides. Experiments were carried out to verify the observations made in numerical simulations. This work gives an insight on the transmission characteristics of So mode while it propagates from a healthy to a delaminated region in a composite laminate.
Composites Research Center, R & D E (E), Alandi Road, Dighi, Pune 411015, India. Electronic address: rd_mech@yahoo.co.in.
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Ramadas
Air-coupled probes; Lamb wave; Stacking sequence; Transmission factor