Effect of particulate tougheners on the damping of composite laminates

Janet M. Biggerstaff; John B. Kosmatka

doi:10.1117/12.384595

27 April 2000 Effect of particulate tougheners on the damping of composite laminates

Janet M. Biggerstaff, John B. Kosmatka

Proceedings Volume 3989, Smart Structures and Materials 2000: Damping and Isolation; (2000) https://doi.org/10.1117/12.384595
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

Rubber is commonly added to composites to increase the toughness. This research investigates adding toughening particles to graphite/epoxy composites for the purpose of increasing the vibrational damping. Adding toughening particles to the interlaminar regions of graphite/epoxy is shown to significantly increase the loss factor, although the increase is much less than can be achieved by embedding a viscoelastic damping layer. The bending stiffness and shear modulus, however, are much higher for the samples with embedded particles than samples with a viscoelastic layer. The addition of damping particles could therefore be used for stiffness-critical parts.

Citation Download Citation

Janet M. Biggerstaff and John B. Kosmatka "Effect of particulate tougheners on the damping of composite laminates", Proc. SPIE 3989, Smart Structures and Materials 2000: Damping and Isolation, (27 April 2000); https://doi.org/10.1117/12.384595

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