Improvement of impact resistance of plain-woven composite by embedding superelastic shape memory alloy wires

Gu, Xiaojun; Su, X.; Wang, Jun; Xu, Yingjie; Zhu, Jihong; Zhang, Weihong

doi:10.1007/s11465-020-0595-1

Cited by 6 publications

(9 citation statements)

References 30 publications

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“…El-Tahan et al [85] showed that for the patch, debonding can be effectively prevented by increasing the anchorage length between the SMA wire and CFRP. In addition, Gu et al [86] pointed out that debonding between the SMA and CFRP in SMA/CFRP composite patches is the main reason for the degradation of their Currently, there are two types of SMA/CFRP composite patches, with one as shown in Figure 10, where the SMA is fully composite with the CFRP by means of a bonding adhesive. The patch can only be heated by an electric current, and the heat resistance of the bonding adhesive needs to be considered.…”

Section: Bonding Performance Between Sma and Cfrpmentioning

confidence: 99%

Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review

Shao,

Huang

2023

Buildings

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The utilization of shape memory alloys (SMAs) to reinforce steel structures has been proven to be an efficient and reliable method, the structural strengthening needs can be met without the need for tensioning equipment by activating the SMAs to generate restoring stresses. This paper firstly introduces the properties of SMA, and then presents the latest research progress, opportunities and challenges of SMA in the field of steel structural reinforcement, both in terms of basic components and applications. In terms of components, the construction forms and working mechanisms of Fe-SMA strips, SMA/CFRP composite patches and SMA dampers are introduced. On this basis, the application of SMA in steel structures reinforcement is introduced, and its effect is analyzed from three aspects: crack restoration, seismic retrofitting and structural strengthening. Finally, the results of the current research are summarized and the shortcomings are analyzed, hoping to provide a reference for the research of SMA in the field of steel structures reinforcement.

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Section: Bonding Performance Between Sma and Cfrpmentioning

confidence: 99%

Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review

Shao,

Huang

2023

Buildings

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“…Apart from their good mechanical behavior and corrosion resistance, FRPs often undergo brittle failure as they do not undergo plastic deformation, and some fibers such as carbon do not have good impact properties. , Such issues can lead to barely visible impact damages (BVID) that reduce the fracture strength of FRPs. Integration of SMAs in FRPs can offer a better solution to this issue.…”

Section: Shape Memory Hybrid Compositesmentioning

confidence: 99%

“…Over the past decades, substantial research has been done to improve the impact resistance of CFRPs. Gu et al investigated the impact resistance of NiTi SMA wires integrated in CFRPs, using a drop weight impact test . An improvement in energy absorption capacity of CFRP composites was found at 10 J of impact energy that is attributed to the stress-induced martensitic transformation (SIM), reversible deformation, and hysteretic energy dissipation of the superelastic wires.…”

Section: Applications Of Shape Memory Hybrid Compositesmentioning

confidence: 99%

“…Gu et al investigated the impact resistance of NiTi SMA wires integrated in CFRPs, using a drop weight impact test. 30 An improvement in energy absorption capacity of CFRP composites was found at 10 J of impact energy that is attributed to the stress-induced martensitic transformation (SIM), reversible deformation, and hysteretic energy dissipation of the superelastic wires. The impact and vibration damping ability of SMA-reinforced glass fiber composites (GFRPs) was studied by Verma et al 88 The energy absorption and vibration damping capacity of the SMA/GFRP composite are found to be better than unreinforced GFRP composites.…”

Section: Applications Of Shape Memory Hybrid Compositesmentioning

confidence: 99%

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Shape Memory Hybrid Composites

et al. 2022

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Smart structures can help to resolve many issues related to conventional materials that are being used in different industries. Shape memory alloys (SMAs) are smart materials with better actuation response, vibration damping characteristics, and large strain recovery, making them good candidates due to their high strength and corrosion resistance for various engineering applications. The performance of fiber-reinforced polymer (FRP) composite materials that are replacing many conventional materials due to their good strength, stiffness, and lightweight potential especially in fuel-consuming industries such as aerospace and automotive, can further be improved by impregnation with SMAs. This review discusses the SMA-reinforced FRP composites, leading to shape memory hybrid composite materials, the issues and limitations in composite manufacturing, and their uses in different research arenas including impact and damping applications, seismic protection applications, crack closure applications, shape morphing applications, and self-deployable structures.

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“…A composite was fabricated by embedding super‐elastic shape memory alloy (SMA) wires into carbon fiber reinforced polymer, showing an improvement in energy absorption capacity in drop‐weight impact tests. [ 40 ] This enhanced impact resistance was mainly attributed to the stress‐induced martensitic transformation and hysteretic energy dissipation of the SMA wires. Additionally, the compressive load‐carrying capacity of impacted SMA hybrid glass fiber‐reinforced plastic laminates was 11.3% higher than the pristine composites subjected to impact of the same energy, because SMA could effectively reduce delamination.…”

Section: Introductionmentioning

confidence: 99%

Bio‐Inspired Semi‐Active Safeguarding Design with Enhanced Impact Resistance via Shape Memory Effect

Wang

Zhou

et al. 2023

Adv Funct Materials

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Inspired by creatures reducing impact damage, a novel semi-active protection strategy to enhance impact resistance through structural adjustment is proposed. The heat-activated shape memory composites (PCLE) consisting of polycaprolactone (PCL) and shear stiffening elastomer are first prepared. The PCLE with 50 wt.% PCL (PCLE-50%) presents tensile strength of 0.46 MPa, fracture strain of 148%, high shape fixity and recovery rates (97.9% and 91.1%), and stable shape-memory repeatability. Furthermore, various PCLE-50%-based structures are fabricated, which show reinforced anti-impact performance after shape-shifting. Loading from 300 mm, the maximum drop hammer impact force of no protection, PCLE-50%, and deformed assembled single-branch structure are 3.98 kN, 1.75 kN, and 0.93 kN, respectively. Additionally, assembled complex structures also exhibit exceptional energy absorption properties. Ultimately, intelligent clothing is successfully manufactured. Besides good anti-impact effect, the clothing shows excellent thermal insulation capabilities whose surface temperature is 31.7 °C after heating for 600 s at 42 °C. This study provides an innovative means to develop deformable, wearable, and intelligent protective devices.

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Improvement of impact resistance of plain-woven composite by embedding superelastic shape memory alloy wires

Cited by 6 publications

References 30 publications

Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review

Advances in Shape Memory Alloy-Based Reinforcement in Steel Structures: A Review

Shape Memory Hybrid Composites

Bio‐Inspired Semi‐Active Safeguarding Design with Enhanced Impact Resistance via Shape Memory Effect

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