The theoretical strength of solids

In principle, there is an upper limit to the mechanical strength of any material under given test conditions. This limit is called the ideal strength. This paper attempts to define the ideal strength so far as is presently possible. Firstly, a brief summary is given of the highest strengths obtained experimentally. Next follows a detailed account of the attempts to calculate the ideal strength from theoretical considerations. Finally, the experimental and calculated results are compared, and it is concluded that in one or two instances the ideal strength has probably been realised experimentally.

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