Could a cardboard principle boost vehicle safety?

December 11, 2017, University of Nebraska-Lincoln
Composites Part B. Credit: Scott Schrage

Prior research has shown that even thin-walled tubing can effectively absorb energy, which makes it appealing to those who engineer vehicles and other structures that may endure crashes.

Straight tubes generally absorb more efficiently than other proposed designs, such as those with a single layer of corrugation – the wave-like ridges and grooves often seen in cardboard. But a single-corrugated does compress more smoothly and predictably under extreme force, helping to reduce injury risks.

Nebraska engineer Linxia Gu and her colleagues sought to balance the best qualities of both types by designing and modeling the performance of tubing with a second layer of corrugation.

The researchers found that their double-corrugated tube substantially narrowed the disparity in while also retaining the consistent crushing behavior of single-corrugated tubing. Their findings could ultimately help inform the design of more crashworthy automobile components.

Gu and her colleagues suggested conducting experiments to verify the results of their computer model. Modifying the geometry or composition of the double-corrugated design might further improve its performance, the researchers said.

Explore further: Modifying the internal structure of 2-D hybrid perovskite materials causes them to emit white light

Related Stories

Perfect packaging

December 4, 2004

Corrugated cardboard is an excellent packaging material that is widely used for transporting, storing and protecting goods. Through the new process developed by EUREKA project, corrugated cardboard can be transformed into ...

Asymmetric sound absorption lets in the light

October 6, 2017

If you've ever lived in an apartment building or stayed in a hotel room, you are probably familiar with the inconvenience of inadequate sound absorption. Acoustic absorption refers to the absorption of sound energy by a material. ...

College student invents cardboard vacuum cleaner

July 7, 2011

( -- In another attempt to reduce the amount of plastic refuse that winds up in landfills, Jake Tyler, an industrial design student at Loughborough University has devised a means to construct a working vacuum ...

Recommended for you

Coffee-based colloids for direct solar absorption

March 22, 2019

Solar energy is one of the most promising resources to help reduce fossil fuel consumption and mitigate greenhouse gas emissions to power a sustainable future. Devices presently in use to convert solar energy into thermal ...

NASA instruments image fireball over Bering Sea

March 22, 2019

On Dec. 18, 2018, a large "fireball—the term used for exceptionally bright meteors that are visible over a wide area—exploded about 16 miles (26 kilometers) above the Bering Sea. The explosion unleashed an estimated 173 ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.