Investigation of damage mechanisms in self-reinforced polyethylene composites by acoustic emission |
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| Affiliation: | 1. Non-destructive Testing Lab, Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran;2. Department of Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran;3. DIN Department, Alma Mater Studiorum, Università di Bologna via Fontanelle 40, 47121 Forlì, Italy;1. Centre for Polymer from Renewable Resources, SCUT, Guangzhou, PR China;2. Department of Materials Engineering, Monash University, Clayton, Australia;3. CSIRO, Manufacturing Flagship, Melbourne, Australia;1. Alma Mater Studiorum – Università di Bologna, Department of Industrial Engineering DIN, via Fontanelle 40, 47100 Forlì, Italy;2. Amirkabir University of Technology, Department of Bioengineering, 424 Hafez Ave., 15914 Tehran, Iran;1. Institute of Chemical Machinery and Process Equipment, College of Energy Engineering, Zhejiang University, Hangzhou 310027, China;2. Ocean College, Zhejiang University, Zhoushan 316021, China;1. State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering and, Sichuan University, Chengdu 610065, People''s Republic of China;2. Department of Biomedical Engineering, College of Polymer Science and Engineering and, Sichuan University, Chengdu 610065, People''s Republic of China;3. Rehabilitation Centre, Sport Hospital Attached to Chengdu Sport University, 251 Wuhou Temple Street, Chengdu 610041, People''s Republic of China;1. Non-destructive Testing Lab, Department of Mechanical Engineering, Amirkabir University of Technology, 424 Hafez Ave, 15914, Tehran, Iran;2. DIN Department, Alma Mater Studiorum – Università di Bologna, Via Fontanelle 40, 47121, Forlì, Italy |
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| Abstract: | The objective of this study is to investigate the damage mechanisms in self-reinforced polyethylene composite laminates (UHMWPE/HDPE) under monotonic tensile loading by the acoustic emission (AE) technique. Fracture surface examinations were conducted using a scanning electron microscope (SEM). Using model specimens exhibiting a dominant failure mechanism, correlations were established between the observed damage growth mechanisms and the AE results in terms of the events amplitude. These correlations can be used to monitor the damage growth process in the UHMWPE/HDPE composite laminates exhibiting multiple modes of damage. Results from this study revealed that the AE technique is a viable and effective tool for identifying damage mechanisms such as fiber–matrix debonding, matrix cracking, fiber pull-out, fiber breakage and delamination in the UHMWPE/HDPE composite materials. |
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