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Toughness, in materials science and metallurgy, is the resistance to fracture of a material when stressed. It is defined as the amount of energy per volume that a material can absorb before rupturing.

- $frac\; mbox\{energy\}\; mbox\{volume\}\; =\; int\_\{0\}^\{epsilon\_f\}\; sigma,\; depsilon$

Where

- $epsilon$ is strain
- $epsilon\_f$ is the strain upon failure
- $sigma$ is stress

Another definition is the ability to absorb mechanical (or kinetic) energy up to failure.

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Last updated on Thursday July 24, 2008 at 14:58:09 PDT (GMT -0700)

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This article is licensed under the GNU Free Documentation License.

Last updated on Thursday July 24, 2008 at 14:58:09 PDT (GMT -0700)

View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation

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