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Title: Effect of multi-impacts on a PMMA sheet material
Authors: Sahoo, S K
Silberschmidt, Vadim V
Keywords: Impact fatigue
Testing apparatus
Impact velocity
Endurance limit
Issue Date: 2008
Publisher: Elsevier
Citation: Journal of Materials Processing Technology , Accepted Postprint
Abstract: When a specimen or component is subjected to repeated impacts it may eventually crack and fracture. A multi-impacts/impact fatigue study has been made for the first time on acrylic type PMMA (polymethylmethacrylate) sheet material with different type of notches and loading conditions. The study is conducted using a pendulum type repeated impact apparatus specially designed and instrumented for determining single and repeated impact strengths. Well-defined impact fatigue (S–N) behavior, having progressive endurance below the threshold single cycle impact fracture strength, with a limit, has been demonstrated.
Description: Copyright for this paper belongs to Elsevier
Appears in Collections:Journal Articles

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