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Laminates Progressive Failure Analysis: Recent Approaches Based on Finite Element Analysis Techniques

  1. Leonardo Lecce,
  2. Ernesto Monaco,
  3. Fabrizio Ricci

Published Online: 20 JUL 2012

DOI: 10.1002/9781118097298.weoc122

Wiley Encyclopedia of Composites

Wiley Encyclopedia of Composites

How to Cite

Lecce, L., Monaco, E. and Ricci, F. 2012. Laminates Progressive Failure Analysis: Recent Approaches Based on Finite Element Analysis Techniques. Wiley Encyclopedia of Composites. 1–6.

Author Information

  1. University of Naples Federico II, Naples, Italy

Publication History

  1. Published Online: 20 JUL 2012

Abstract

Fiber-reinforced composites, with their high strength-to-weight ratio, are finding increasing use in primary structural components in many aerospace applications. They offer excellent in-plane performances, but the poor properties in, the through-thickness direction make composite materials particularly susceptible to severe out-of plane loads, such as transverse low velocity impacts. A low velocity impact event typically causes significant, but barely visible, damage in terms of initial matrix cracking, followed by delaminations and eventually fiber breakage; so it is one of the most subtle threat to composite materials and a major issue in the design of laminated composite structures, which has, received much attention in recent years. Progressive failure analysis (PFA) is probably the most promising approach to understand the mechanism of damage progression in composite materials. PFA has been implemented in many finite element commercially available codes. In this article, failure and progressive failure modeling approaches are reviewed.

Keywords:

  • matrix cracking;
  • progressive failure models;
  • finite element analysis;
  • low velocity impacts;
  • failure criteria