I. Kimpara et al., FINITE-ELEMENT STRESS-ANALYSIS OF INTERLAYER BASED ON SELECTIVE LAYERWISE HIGHER-ORDER THEORY, Composites. Part A, Applied science and manufacturing, 29(9-10), 1998, pp. 1049-1056
In this paper, an N-layered higher-order finite element (FE) is develo
ped for general laminated plates, which is capable of simultaneously p
redicting global and local stresses. The displacement continuity const
raints at interlayers are approximated by introducing imaginary spring
s attached on the interlayers (interlaminar springs). For confirming i
ts validity and versatility, comparative studies using numerical resul
ts by the present element are carried out, focusing on interlaminar st
ress evaluations. The comparative studies show that the present elemen
t is sufficiently applicable to evaluations of interlaminar stresses,
if not singular, from a practical point of view. (C) 1998 Elsevier Sci
ence Ltd. All rights reserved.