Modelling of delamination in composite shells under different temperature conditions

  • Rohan Soman Polish Academy of Science
  • Wieslaw Ostachowicz Faculty of Automotive and Construction Machinery

Abstract

Composite shells and panels are widely used in aerospace structures. These are often subjected to defects and damage from both in-service and manufacturing events. Delamination is the most important damage defect. This paper deals with the computational modelling of delamination in laminated composite shells. The use of three-dimensional finite elements for determining delamination of these structures is computa- tionally expensive. Here combined double-layer and single-layer shell elements are employed to study the effect of delamination on the strain values in the sample under purely bending loads. The computational load and the accuracy of the modelling approaches are compared. It is shown that a through-the-thickness delamination can be modeled and analyzed effectively without requiring a great deal of computing time and memory. Some of the results are compared with the experimental results.

Keywords

finite element modelling, delamination, strain, temperature,
Published
Dec 22, 2017
How to Cite
SOMAN, Rohan; OSTACHOWICZ, Wieslaw. Modelling of delamination in composite shells under different temperature conditions. Computer Assisted Methods in Engineering and Science, [S.l.], v. 24, n. 2, p. 127–135, dec. 2017. ISSN 2299-3649. Available at: <http://cames.ippt.gov.pl/index.php/cames/article/view/210>. Date accessed: 21 jan. 2018.
Section
Articles