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Virtual Work

Virtual Work

The principle of virtual work states that if a body is in static and dynamic equilibrium, then the sum of all the virtual work done by all external forces and couple moments for any given virtual displacement must be zero.
In static equilibrium, a body can experience an imaginary or virtual movement, such as displacement or rotation. The virtual work done by a force is equal to the dot product of force and virtual displacement in the direction of the force. When it comes to virtually rotating a...

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Related Experiment Video

Updated: Sep 11, 2025

Author Spotlight: Enhancing Engineering Education via WebVR-Based Online Laboratories

Author Spotlight: Enhancing Engineering Education via WebVR-Based Online Laboratories

Published on: February 23, 2024

A metaverse-based virtual reality platform for online certification using Web3.

Abdul Razzaq¹, Ahmed B Altamimi², Wilayat Khan²

¹School of Software, Northwestern Polytechnical University, Xian, Shaanxi, People's Republic of China.

|August 12, 2025

Summary

This summary is machine-generated.

MetaEduTech integrates metaverse and blockchain for secure online certification. This solution enhances verification speed and authenticity, modernizing academic credentialing in virtual environments.

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Area of Science:

Educational Technology
Computer Science
Virtual Reality

Background:

The metaverse synchronizes physical and virtual realities, enabling new forms of interaction.
Combining metaverse and blockchain technologies offers a paradigm shift in educational technology, particularly for online certification.
This integration enhances security, transparency, and accountability while reducing costs in the certification process.

Purpose of the Study:

To introduce MetaEduTech, a novel solution for accelerating certificate verification.
To leverage decentralized storage (IPFS) and blockchain for enhanced certificate security and authenticity.
To provide a metaverse environment for a streamlined certification process.

Main Methods:

Implementation of a blockchain-based smart contract model on Ethereum.
Deployment on the Microsoft Windows platform for experimental evaluation.
Utilizing the InterPlanetary File System (IPFS) for decentralized certificate storage.

Main Results:

Achieved efficient query response times ranging from 5 ms to 50 ms.
Demonstrated effective query execution with low CPU utilization (2%-6%).
Validated the solution's effectiveness in securing and verifying digital certificates.

Conclusions:

The MetaEduTech solution effectively modernizes the certification exam process.
The findings highlight the potential for addressing certificate authenticity issues in academic verification within metaverse environments.
The research provides valuable insights for future developments in secure and verifiable digital credentials.