# A cost-effective isogeometric approach for composite plates based on a stress recovery procedure

## TL;DR

This paper presents a cost-effective isogeometric method for simulating laminated composite plates, utilizing stress recovery from coarse solutions to accurately predict out-of-plane stresses, especially effective for slender multilayer stacks.

## Contribution

It introduces a novel stress recovery procedure within an isogeometric framework that reduces computational costs while maintaining accuracy for composite plate analysis.

## Key findings

- Effective stress recovery from coarse solutions
- High accuracy in out-of-plane stress prediction
- Significant computational savings for multilayer stacks

## Abstract

This paper introduces a cost-effective strategy to simulate the behavior of laminated plates by means of isogeometric 3D solid elements. Exploiting the high continuity of spline functions and their properties, a proper out-of-plane stress state is recovered from a coarse displacement solution using a post-processing step based on the enforcement of equilibrium in strong form. Appealing results are obtained and the method is shown to be particularly Peffective on slender composite stacks with a large number of layers.