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David Kirkaldy
David Kirkaldy (1820–1897) was a Scottish engineer who pioneered the testing of materials as a service to engineers during the Victorian period. He established a test house in Southwark, London and built a large hydraulic tensile test machine, or tensometer for examining the mechanical properties of components, such as their tensile strength and tensile modulus or stiffness.
==Career==
David Kirkaldy was born near Dundee in Scotland in 1820. He worked at Robert Napier’s Vulcan Foundry Works in Glasgow, and moved from workshop to drawing office. As a result of the industrial revolution, new materials were being developed such as steel to replace cast iron and wrought iron. The properties of these materials were not well understood. In conjunction with his work for Napier and Sons, Kirkaldy undertook a long series of tensile load tests between 1858 and 1861. He published his ''Results of an Experimental Inquiry into the Comparative Tensile Strength and other properties of various kinds of Wrought-Iron and Steel'' in 1862.
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