What is it about?
This article deals with the dynamic response of thin circular clamped GLARE (GLAss REinforced) fiber-metal laminates subjected to low-velocity impact. The laminates have equal total thickness and consist of standard grades. Three different plate diameters are considered for each GLARE grade. Their dynamic response is predicted by solving differential equations of motion corresponding to the impact phenomenon. The obtained results are analyzed and compared in order to understand and evaluate the performance of the examined material grades along with the effect of different plate radius. With reference to the radius variation, it is found that it affects substantially the overall impact behavior of a GLARE plate. As far as the examined material grades are concerned, similarities and differences related with their impact behavior are recorded and a comparative evaluation is implemented. Characteristic variables associated with the low-velocity impact response of fiber-metal laminates are discussed and pertinent design recommendations are proposed.
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Why is it important?
This article provides useful information concerning the impact response of GLARE fiber-metal laminates. It also provides a method to obtain experimental values of the permanent impact energy absorption from experimental load-time curves.
Perspectives
This article sheds light to the impact response of GLARE fiber-metal laminates and will help engineers and researchers to understand the behavior of the examined GLARE grades. Furthermore, it demonstrates how the different geometry and lay-up configurations affect the response of the plates to the impact loading. The derived conclusions can be used for the design of GLARE structures when their exposure to low-velocity impact is expected.
Dr George Bikakis
NTUA
Read the Original
This page is a summary of: Low-velocity impact response of fiber-metal laminates consisting of different standard GLARE grades, Journal of Reinforced Plastics and Composites, February 2016, SAGE Publications,
DOI: 10.1177/0731684416633770.
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