An insight into advance self-healing composites

Abstract

The purpose of the investigation is to review self-healing mechanisms and various advanced self-healing materials which are recently used for repairing composite materials. The manufacturing and characterization processes are studied in depth for self-healing carbon fiber reinforced composites, microcapsules, and supra-molecular elastomers. The composite structures fail due to internal cracks. These cracks are initiated due to continuous loading of structures. It is not possible to fill those cracks especially when the structures are at remote locations. Self-healing materials are designed and prepared to heal their cracks. The present review is about self-healing materials used for the fabrication of composites. It is expected that future applications are based on such advanced self-healing composite materials and thus it is needed to review advanced self-healing composite structures. A brief review of self-healing techniques and materials as well as applications are discussed in the present investigation. The efficient and effective manufacturing techniques are suggested through the article.

A Comprehensive Review of Self-Healing Polymer, Metal, and Ceramic Matrix Composites and Their Modeling Aspects for Aerospace Applications

“…It can be observed that almost all the regions were filled with healing agents and strong nylon connections were seen all over the structures [ 206 ].…”

“…The technical qualities of the product are restored by using enough liquid resin as a curing representative to cover the break opening completely. Even though this device requires mending agent channels, and continuous self-healing inside the polymer composite is not possible, the benefit of autonomous self-healing is the absence of external engagement in the treating process [ 206 , 207 , 209 ].…”

“…The left side images show C-scans of the unaffected region before the test while the low velocity impact after the test can be seen in the images presented in the middle. The damage in specimens is due to delamination, as shown in the right side images of both ( A ) and ( B ) [ 206 ].…”

Microwave-magnetic field dual-response raspberry-like microspheres for targeted and repeated self-healing from electrical damage of insulating composites

“…This process inevitably causes premature solidification of other unbroken microcapsules, which means that most microcapsule composites can only repair such damage once, or at best several times before becoming completely useless. [20][21][22][23] In addition, the healing agent contained in the microcapsules is released passively after the rupture of the shell triggered by the external stimulation, which causes problems such as failed shell cracking, delayed release, and low healing rates. [24][25][26][27][28][29] Finally, the microcapsule shell, which serves as a container, dramatically deteriorates the insulating characteristics of the matrix.…”

Design Modification and Analysis of Disc Brake

“…Friction brakes are the most popular braking mechanism in commercial or special-purpose vehicles [17][18][19][20]. They're often rotating devices with a spinning wear surface, such as a disc or drum, and a stationary pad or shoe [21][22][23].…”