Influence of matrix systems on the deformation behavior of adaptive fiber-reinforced plastics

2020 ◽  
pp. 152808372092701
Author(s):  
Moniruddoza Ashir ◽  
Chokri Cherif
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Matrix Material ◽  
Mixing Ratio ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Bending Modulus ◽  
Hybrid Yarn ◽  
Fiber Reinforced Plastics

Adaptive structures contain actuators that enable the controlled modification of system states and characteristics. Furthermore, their geometric configuration as well as physical properties can be varied purposefully. The geometric configuration of adaptive fiber-reinforced plastics can be changed by varying the bending modulus of the matrix material. Hence, this research work presents the influence of thermosetting matrix material with different bending moduli on the deformation behavior of adaptive fiber-reinforced plastics. Firstly, shape memory alloys were converted into shape memory alloy hybrid yarn in order to realize this goal. Subsequently, shape memory alloy hybrid yarn was textile-technically integrated into reinforcing fabrics by means of weaving technology. The bending modulus of the thermosetting matrix material was changed by mixing modifier into it. The Seemann Corporation Resin Infusion Molding Process was used for infusion. Later, the deformation behavior of adaptive fiber-reinforced plastics was characterized. Results revealed that the maximum deformations of adaptive fiber-reinforced plastics with resin and modifier at a mixing ratio of 9:1 and 8:2 were increased to 34% and 63%, respectively, compared to adaptive fiber-reinforced plastics infiltrated by the reference resin. The maximum deformation speed during heating and cooling of adaptive fiber-reinforced plastic with the mixing ratio of resin and modifier at a value of 8:2 were 41.17 mm/s and 26.89 mm/s, respectively.

scholarly journals Adaptive hinged fiber reinforced plastics with tailored shape memory alloy hybrid yarn

2019 ◽  
Vol 41 (1) ◽  
pp. 191-200 ◽  
Author(s):  
Moniruddoza Ashir ◽  
Andreas Nocke ◽  
Uwe Hanke ◽  
Chokri Cherif
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Hybrid Yarn ◽  
Fiber Reinforced Plastics

Activation time- and electrical power-dependent deformation behavior of adaptive fiber-reinforced plastics

2019 ◽  
Vol 53 (20) ◽  
pp. 2777-2788 ◽  
Author(s):  
Moniruddoza Ashir
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Electrical Power ◽  
Fiber Reinforced ◽  
Activation Time ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastics ◽  
Hybrid Yarn ◽  
Reinforced Plastic ◽  
Fiber Reinforced Plastics

There is considerable need for research into the application potential of adaptive fiber-reinforced plastics based on shape memory alloys, in particular with regard to industry-specific solutions. Hence, this paper presents the activation time- and voltage amplitude-dependent deformation behavior of adaptive fiber-reinforced plastics incorporating shape memory alloy. In order to attain this goal, shape memory alloy was textile-technically converted into shape memory alloy hybrid yarn using the friction spinning technology. Subsequently, the manufactured hybrid yarn was integrated into the reinforcing fabric in the warp direction using weaving technology. To increase the deformation potential of the adaptive fiber-reinforced plastic, a hinged woven fabric was developed by floating of the warp yarn. The functionalized preform was infused by the Seemann Corporation Resin Infusion Molding Process. Later, an extensive electro-mechanical characterization of the adaptive fiber-reinforced plastic by varying electrical power resulting from the varying voltage amplitude and activation time was completed. The maximum deformation of adaptive fiber-reinforced plastics was achieved at an electrical power of 95 W (50 V/1.9 A) and 60 s of thermal induced activation.

Development of shape memory alloy hybrid yarns for adaptive fiber-reinforced plastics

2018 ◽  
Vol 89 (8) ◽  
pp. 1371-1380 ◽  
Author(s):  
Moniruddoza Ashir ◽  
Andreas Nocke ◽  
Chokri Cherif
Keyword(s):  
Shape Memory ◽  
Technological Development ◽  
Fiber Reinforced ◽  
Material Loss ◽  
Reinforced Plastics ◽  
The Core ◽  
Hybrid Yarn ◽  
Pull Out ◽  
The Matrix ◽  
Fiber Reinforced Plastics

The application of shape memory alloys (SMAs) for the development of adaptive fiber-reinforced plastics has been expanding steadily in recent years. In order to prevent matrix damage and optimize the actuating potential of SMAs during the process of thermally induced activation, a barrier layer between SMAs and the matrix of fiber-reinforced plastics is required. This article approaches the textile technological development of SMA hybrid yarns as a core–sheath structure using friction spinning technology, whereby the SMA serves as the core. Four types of hybrid yarns are produced by varying the number of process stages from one to three, as well as the core and sheath materials. The decoupling of the SMA from fiber-reinforced plastics is crucial for optimizing the actuating potential of SMA, thus it is tested by means of the pull-out test. Although the material loss coefficient increases by raising the number of process stages, the three-stage processing of SMA hybrid yarn with an additional glass roving is found to be the most suitable variation for decoupling SMA from the matrix of fiber-reinforced plastics.

scholarly journals Sensing and Actuating Functions by Shape Memory Alloy Wires Integrated into Fiber Reinforced Plastics

Procedia CIRP ◽  
2017 ◽  
Vol 66 ◽  
pp. 249-253 ◽  
Author(s):  
Björn Senf ◽  
Thomas Mäder ◽  
Iñaki Navarro y de Sosa ◽  
André Bucht ◽  
Marcus Knobloch ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Fiber Reinforced ◽  
Reinforced Plastics ◽  
Fiber Reinforced Plastics

Development and mechanical properties of adaptive fiber-reinforced plastics

2018 ◽  
Vol 48 (6) ◽  
pp. 1081-1096 ◽  
Author(s):  
Moniruddoza Ashir ◽  
Andreas Nocke ◽  
Chokri Cherif
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Mechanical Characterization ◽  
Mechanical Load ◽  
Load Capacity ◽  
Fiber Reinforced ◽  
Lightweight Structures ◽  
Reinforced Plastics ◽  
Hybrid Yarn ◽  
Fiber Reinforced Plastics

Textile-based lightweight structures offer various possibilities for the design of tailored structures by the selective choice of materials and their processing into textile semi-finished products and fiber-reinforced plastics. Lightweight structures with a high mechanical load capacity are feasible by developing fiber-reinforced plastics with adaptive properties that are able to adapt their characteristics, e.g. geometry or stiffness, to external influences. Thus, the application potential of fiber-reinforced plastics can be further expanded. In this paper, we present novel adaptive fiber-reinforced plastics based on textile semi-finished products with integrated shape memory alloys and their mechanical characterization. The shape memory alloy is textile technically integrated and converted into friction spun hybrid yarn. Next, the produced hybrid yarn is integrated with plain, twill and satin woven reinforcement fabric in the weft direction during the shedding operation in weaving. Adaptive fiber-reinforced plastics are developed by infusing textile semi-finished products. Subsequently, the mechanical characterization of the adaptive fiber-reinforced plastics is carried out. Results show that, by integrating shape memory alloys into adaptive reinforced fabrics, the mechanical performance of fiber-reinforced plastics can be tailored.

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