Mechanical analysis of carbon fiber reinforced shape memory polymer composite for self-deployable structure in space environment
| Autor: | Seok Bin Hong, Woong-Ryeol Yu, Joon Hyeok Jang, Nam Seo Goo, Yong San Ahn, Jin-Gyun Kim |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry 02 engineering and technology Shape-memory alloy Fiber-reinforced composite Epoxy Bending 021001 nanoscience & nanotechnology Shape-memory polymer 020303 mechanical engineering & transports 0203 mechanical engineering Flexural strength visual_art Computer data storage Ultimate tensile strength visual_art.visual_art_medium Composite material 0210 nano-technology business |
| Zdroj: | Behavior and Mechanics of Multifunctional Materials and Composites 2016. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2218404 |
| Popis: | Shape memory polymer (SMP) is one of smart polymers which exhibit shape memory effect upon external stimuli. Reinforcements as carbon fiber had been used for making shape memory polymer composite (CF-SMPC). This study investigated a possibility of designing self-deployable structures in harsh space condition using CF-SMPCs and analyzed their shape memory behaviors with constitutive equation model.CF-SMPCs were prepared using woven carbon fabrics and a thermoset epoxy based SMP to obtain their basic mechanical properties including actuation in harsh environment. The mechanical and shape memory properties of SMP and CF-SMPCs were characterized using dynamic mechanical analysis (DMA) and universal tensile machine (UTM) with an environmental chamber. The mechanical properties such as flexural strength and tensile strength of SMP and CF-SMPC were measured with simple tensile/bending test and time dependent shape memory behavior was characterized with designed shape memory bending test. For mechanical analysis of CF-SMPCs, a 3D constitutive equation of SMP, which had been developed using multiplicative decomposition of the deformation gradient and shape memory strains, was used with material parameters determined from CF-SMPCs. Carbon fibers in composites reinforced tensile and flexural strength of SMP and acted as strong elastic springs in rheology based equation models. The actuation behavior of SMP matrix and CF-SMPCs was then simulated as 3D shape memory bending cases. Fiber bundle property was imbued with shell model for more precise analysis and it would be used for prediction of deploying behavior in self-deployable hinge structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|