Journal article
Dynamic fracture of glass fiber-reinforced ductile polymer matrix composites and loading rate effect
Composites. Part B, Engineering, v 235, 109754
15 Apr 2022
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The dynamic fracture of S-2 glass fiber-reinforced polymer matrix composites (FRPMCs) was investigated in this study. The matrix ductility was improved by a recently developed network topology modification technique via mixing partially reacted substructures (mPRS). The composite material was manufactured and characterized by micro-CT scanning and scanning electron microscopy (SEM). Dynamic single-edge notched bending (d-SENB) experiments were performed on the composites by using a modified split-Hopkinson pressure bar. Each specimen's fracture process was visualized by ultrafast X-ray imaging. Such in-situ radiography enabled identifying the damage initiation below 50-μm scale and inspecting its propagation through the internal structures of opaque composites, thereby accurately quantifying the composites' mechanical properties. Furthermore, the identical d-SENB experiments were designed and the digital image correlation (DIC) was employed to monitor the stress wave propagation on the composite specimens. The force and deflection measurements were modified and correlated to the physical damage processes. Besides, quasi-static SENB experiments were conducted to identify the loading rate effects on the composites' fracture behaviors. The force and deflection history, bending stiffness, energy dissipation, and fracture toughness at different loading rates were quantified and compared. Finally, post-fracture analysis by micro-CT scanning and SEM provided physical observations on the variation of the fracture morphology at different loading rates.
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Details
- Title
- Dynamic fracture of glass fiber-reinforced ductile polymer matrix composites and loading rate effect
- Creators
- Jinling Gao - Purdue University West LafayetteNesredin Kedir - Purdue University West LafayetteJulio A. Hernandez - Purdue University West LafayetteJian Gao - Department of Chemical and Biological Engineering, Drexel University, 3101 Ludlow Street, Philadelphia, PA, 19104, USATodd Horn - Purdue University West LafayetteGaram Kim - Purdue University West LafayetteKamel Fezzaa - Argonne National LaboratoryTyler N. Tallman - Purdue University West LafayetteGiuseppe Palmese - Drexel UniversityRonald Sterkenburg - Purdue University West LafayetteWeinong Chen - Purdue University West Lafayette
- Publication Details
- Composites. Part B, Engineering, v 235, 109754
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000767990900001
- Scopus ID
- 2-s2.0-85125725432
- Other Identifier
- 991019168405704721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Multidisciplinary
- Materials Science, Composites