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Related Concept Videos

Composite Bodies00:55

Composite Bodies

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A composite body is a body made up of multiple parts, connected to form a larger, unified object. Each part has its own weight and center of gravity, which must be considered to determine the center of gravity of the composite body. In cases where the density or specific weight is constant, the center of gravity coincides with the centroid.
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In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...
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Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
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Related Experiment Video

Updated: Aug 28, 2025

Magnet Assisted Composite Manufacturing: A Flexible New Technique for Achieving High Consolidation Pressure in Vacuum Bag/Lay-Up Processes
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Emerging Deep-Sea Smart Composites: Advent, Performance, and Future Trends.

Haiyi Zhou1, Pengcheng Jiao1,2, Yingtien Lin1,2

  • 1Institute of Port, Coastal and Offshore Engineering, Ocean College, Zhejiang University, Zhoushan 316021, China.

Materials (Basel, Switzerland)
|September 23, 2022
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Summary

Deep-sea composites are crucial for resource extraction. This review proposes smart composites with self-diagnosis, self-healing, and self-powering capabilities for enhanced deep-sea exploration and monitoring.

Keywords:
deep-sea composite materialsdeep-sea exploration technologyself-diagnosisself-healingself-poweredsmart composites

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Area of Science:

  • Materials Science
  • Ocean Engineering
  • Robotics

Background:

  • Global resource scarcity drives deep-sea exploration.
  • Deep-sea composites are vital for abyssal resource extraction, marine vehicles, and monitoring devices.
  • Existing marine composites and extraction equipment face limitations.

Purpose of the Study:

  • To review current research on marine composites and deep-sea extraction equipment.
  • To propose deep-sea smart composite materials with self-diagnosis, self-healing, and self-powered functionalities.
  • To summarize relevant studies and identify future research challenges.

Main Methods:

  • Literature review of existing marine composites and deep-sea equipment.
  • Synthesis of research on smart composites.
  • Analysis of self-diagnosis, self-healing, and self-powered characteristics for deep-sea applications.

Main Results:

  • Identified limitations in current deep-sea composite materials and extraction technologies.
  • Proposed novel deep-sea smart composite materials integrating self-diagnosis, self-healing, and self-powered features.
  • Summarized key research findings and advancements in the field.

Conclusions:

  • Smart composites offer significant potential for overcoming deep-sea exploration challenges.
  • Future development requires advancements in materials science and integration with AI techniques.
  • Practical applications of these advanced composites in deep-sea engineering are anticipated.