Electric Assumptions for Piezoelectric Laminate Analysis

摘要: In computational analysis of piezoelectric laminates which may comprise and non-piezoelectric plies, the transverse electric field is often assumed to be piecewise constant along direction. This conventional assumption lead significant errors unless ply considerably thinner than overall thickness laminate. To this end, two alternate assumptions termed EL DC on spatial distributions variables are proposed. EL, taken linear assumption, displacement The rationales leading proposed discussed. Numerical examples indicate that markedly more accurate one. However, becomes inaccurate when its function spans one ply. light, consumes less potential d.o.f.s efficient EL.