ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this paper, we have proposed a new cohesive model to stably and accurately simulatedelamination propagations in composite laminates under transverse loads. In this model, we set up apre-softening zone in front of the original softening zone. In this pre-softening zone, the initialstiffness is gradually reduced as the interface strength decreases. However, the onset displacement forstarting the real softening process is not changed in this model. The fracture toughness of materialsfor determining the final displacement of complete decohesion is not changed too. This cohesivemodel is implemented in the explicit time integration scheme. A DCB problem is employed toanalyze the characteristics of the present cohesive model. Moreover, an experimental example oflaminates under impact loads is employed to illustrate the validity of the present method
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.32.137.pdf
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