Highly concentrated silica suspensions are well-known for their pronounced shear-thickening behavior beyond a certain
shear rate or stress, at which a significant and simultaneous increase of the stiffness and damping properties are
observed. In the present work, the integration of shear-thickening fluids (STFs) into composite structures has been
investigated with the aim of tuning part stiffness and damping capacity under dynamic deformation. Results from
oscillatory rheological measurements on an STF were correlated with results from vibrating beam tests (VBT) on model
sandwich structures containing layers of the same STF sandwiched between polyvinyl chloride (PVC) beams. The effect
of STF composition was investigated, and finite element analysis (FEA) was used to predict the dynamic behavior of the
PVC-STF sandwich structure numerically.