IIT Hyderabad Students Build Low-Cost Device to Study High-Speed Impacts
Hyderabad, India – A team of innovative students at the Indian Institute of Technology Hyderabad (IIT Hyderabad) has successfully developed a low-cost light gas gun designed to study the behavior of materials under high-speed impacts. This groundbreaking project was undertaken at the High-Speed Experimental Laboratory (Hi-SEAL) and has the potential to contribute significantly to various fields, including vehicle safety, defense materials, and construction engineering.
Development of the Light Gas Gun
The light gas gun created by the student team can propel small projectiles at speeds reaching up to 0.8 kilometers per second, which is close to the speed of sound. This remarkable achievement was made possible through the guidance of assistant professor S. K. Karthick and the use of everyday plumbing materials, making the device both accessible and cost-effective.
Unlike traditional light gas guns that often require expensive infrastructure and specialized components, the IIT Hyderabad team utilized commercially available PVC pipes, commonly found in residential and commercial buildings, to construct a 10-meter-long barrel. The entire setup was completed with a budget of approximately ₹50,000, showcasing the ingenuity and resourcefulness of the students involved.
Applications of High-Speed Impact Studies
High-speed impact studies are crucial in several applications, including:
- Vehicle Safety: Understanding how vehicles absorb crash forces can lead to improved safety features.
- Building Design: Insights gained from these studies can help design structures that withstand shocks and extreme conditions.
- Protective Gear: Research into materials under high-speed impacts can enhance the effectiveness of helmets and defense equipment.
According to Professor Karthick, “A light gas gun helps us recreate high-speed impacts in a controlled way. This is useful to understand how materials fail, how shock waves behave, and how structures respond under extreme conditions.”
Challenges Faced by the Student Team
The project was not without its challenges. The student team, which included G. Sri Datta Krishna, Y. V. Karthik, M. N. Marzouq, T. Harshada, and M. Raj Kiran Reddy, faced significant technical hurdles during the development phase. One of the primary challenges was accurately measuring the speed of the projectiles, which often exceeded the speed of sound.
To overcome this obstacle, the students devised a low-cost system using sensors to calculate the velocity of the projectiles accurately. This innovative approach allowed them to gather precise data essential for their experiments.
Another challenge involved safely stopping the projectiles after they were fired. The team designed a sand-filled box intended to absorb the impact of the projectiles, demonstrating that sometimes the simplest solutions are the most effective. Professor Karthick remarked, “Sometimes the simplest ideas worked best.”
Breaking the Sound Barrier
After initial difficulties in achieving higher speeds, the team successfully crossed the sound barrier, marking a significant milestone in their research. This achievement not only validated their design but also opened new avenues for further exploration and experimentation.
Researchers are now looking into ways to scale up the system for advanced studies and potential collaborations with defense laboratories. The implications of this research could extend beyond academic interest, potentially influencing real-world applications in various industries.
Future Prospects
The development of this low-cost light gas gun represents a significant step forward in the field of high-speed impact studies. As the team continues to refine their device and explore new research opportunities, the potential for collaboration with defense laboratories could lead to advancements in safety technologies and materials science.
Moreover, the project serves as an inspiring example of how students can leverage creativity and resourcefulness to tackle complex engineering challenges. The success of this initiative highlights the importance of hands-on learning and innovation in academic settings.
Conclusion
The innovative work done by the IIT Hyderabad student team not only showcases their technical skills and creativity but also emphasizes the importance of affordable research tools in advancing scientific understanding. As they continue to explore the capabilities of their low-cost light gas gun, the potential benefits to society in terms of safety and material science are immense.
Note: This article is based on information available as of October 2023 and aims to provide insights into the developments at IIT Hyderabad regarding high-speed impact studies.

