Objective:

To teach the concept of shear lag in piezo based sensing/actuation operating through the medium of a bonding layer.

Apparatus used:

Host Structure, PZT patch, Epoxy

Step 1: a). Click on add button to add beam in the lab.

Step 1: b). Click on beam to arrange it in right position.

Step 1: c). Click add button to add PZT patch in the lab.

Step 1: d). Click add button to add epoxy in the lab.

Step 1: e). Click on brush to apply epoxy on PZT patch.

Step 1: f). Click on PZT patch to fix it on beam.

Step 2: a). Click on PZT patch to flip it to apply epoxy.

Step 2: b). Click on brush to apply epoxy on PZT patch.

Step 2: c). Click on PZT patch to fix it on beam.

Step 2: d). Click on eye icon to see the side view.

Deformation of host structure is smaller than PZT patch and epoxy layer

Step 1: b). Click on brush to apply epoxy on PZT patch.

Step 1: c). Click again on PZT patch to flip it .

Strain distribution across the length of PZT patch for various values

Enter the length of beam, L (in meters) :

Enter the density of beam (in kg/m³) :

Enter the Young's modulus of Elasticity E, of beam (in N/m²) :

Select the value of n:

Frequency,f_n (in Hz) :

Repeat the whole experiment for last one specimen.