STRENGTH OF MATERIALS
NEED FOR RESEARCH -WORK.
(ssitib mas association.—ce?*Ri»nr.)
(ABSWAMAM • NET ZJALAND CAM ASSOCIATION.)
(Received August 28, 10 a.m. )
LONDON, 26th August. Professor C. F. Jenkins, in an address to the Engineering Section of the British Association, said the time had come to thoroughly overhaul and revise ths fundamental data' on which the calculations of the strength and suitability of materials was based. During the war, aeroplane construction had revealed in a, remarkable way how inadequately the problems-of stress and strain had been solved, especially in regard to anisotropic materials, and in a lesser degree with rsoCropic materials. There was practically no theory in a form available for the engineer by which the strength of timber could be satisfactorily calculated. Researches during the war had yielded some reasonably accurate data. Professor Jenkins urged the necessity of undertaking the fullest research work on the subject. .
, [Isotropic substances are those which ha^ve their physical properties—for instance, elasticity and, strength—similar in all directions; amsotropic bodies have their properties different in various directions. A piece 'of steel is isotropic in elasticity and strength, wood is aniso< tropic, being stronger along the grain than across it.] ' . '
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Bibliographic details
Evening Post, Volume C, Issue 51, 28 August 1920, Page 5
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192STRENGTH OF MATERIALS Evening Post, Volume C, Issue 51, 28 August 1920, Page 5
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