Français
6. Post-impact fatigue
The effect of a low-energy impact on the mechanical behavior of a composite is still difficult to grasp, and depends to a large extent on the volume fraction of fibers within the composite.
For volume fractions of the order of 60%, impacts cause delamination at the interfaces of the plies closest to the impacted zone, without however leaving any apparent manifestations on the composite surface (figure 28 ).
The Ultimate Scientific and Technical Reference
This article is included in
Plastics and composites
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Post-impact fatigue
Environmental influences on fatigue life
Bibliography
Software tools
Commercial finite element calculation codes (ABAQUS, ANSYS...) do not perform fatigue calculations, but calculate for a given number of cycles. The material characteristics then correspond to the residual properties for the number of cycles concerned. The question then remains: for which cycles is it wise to perform these calculations? The answer can be found in the cycle skipping techniques mentioned in [AM 5 410] § 8.2....
Events
ICFC5, Fifth International Conference on Fatigue of Composites 16-19, October 2010 Nanjing, China.
Directory
Organizations – Federations – Associations (non-exhaustive list)SF2M, Société Française de Métallurgie et de Matériaux. Fatigue Commission http://www.sf2m.asso.fr
The Ultimate Scientific and Technical Reference
