An Analytical Method for Evaluation of Impact Damage Energy of Laminated Composites

CT Sun

doi:10.1520/STP26958S

SYMPOSIA PAPER Published: 01 January 1977

STP26958S

An Analytical Method for Evaluation of Impact Damage Energy of Laminated Composites

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A higher order beam finite element is developed for computing the dynamic response of laminated beams subjected to impact of a hard object. The contact force as well as the indentation are obtained by using the Hertzian contact law. By assuming a certain unloading path, the total energy imparted from the projectile to the beam and the damage energy that causes permanent indentations are computed. Laminated cantilever beams of a glass-epoxy composite impacted by a steel ball are investigated. Part of the analytical results is in good agreement with existing experimental data.

Author Information

Sun, CT

Purdue University, West Lafayette, Ind.

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Details

Developed by Committee: D30

Pages: 427–440

DOI: 10.1520/STP26958S

ISBN-EB: 978-0-8031-4690-7

ISBN-13: 978-0-8031-4490-3

An Analytical Method for Evaluation of Impact Damage Energy of Laminated Composites

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