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Army Licenses Hardness Tester
The U.S. Army's Aberdeen Proving Grounds has licensed a hardness testing device invented by Ghatu Subhash, associate professor of mechanical engineering. The device easily and quickly measures how materials respond to dynamic forces. "We developed a lot of science and published a lot of papers on this, my students and I," he notes. "It's more complicated than it seems. It's like firing a bullet, making it kiss the target and come back." SubhashÕs tester takes the difficulty out of the process. "Now you don't need a PhD to do it," he said. "Any high school student or machinist can use this." In time, dynamic hardness testers will be evaluating materials in labs and machine shops all over the country, Subhash predicts. Anyone researching or manufacturing materials in areas as diverse as bullet-proof clothing, automotive crash-worthiness and precision grinding can learn a lot from a dynamic hardness tester. |
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