Although the preceding discussion assumed elongation, the results are also applicable to compression. By convention, compression (shortening) carries a negative sign. For example e=-0.001 means a compressive strain of magnitude 0.001.
Although the preceding discussion assumed elongation, the results are also applicable to compression. By convention, compression (shortening) carries a negative sign. For example e=-0.001 means a compressive strain of magnitude 0.001.