| 释义 |
isopachic, a. and n.|aɪsəʊˈpækɪk|
[f. as prec. + -ic.]
A. adj. Corresponding to or depicting the locus of points in a body where the sum of the principal stresses has the same value.
1931Coker & Filon Treat. Photo-Elasticity ii. 178 By observations with the lateral extensometer we can..obtain..the curves for which P + Q has an equal value. These may be briefly referred to as Isopachic curves, or curves of equal thickness. 1950M. Hetényi Handbk. Exper. Stress Analysis xvii. 910 If the isochromatic and isopachic lines for a given model and loading are known, it becomes..simple..to evaluate the two principal stresses at any point by direct addition and subtraction of the equivalent values. 1972Phys. Bull. May 276/3 The use of double exposure holography to obtain isopachic-isochromatic fringe patterns in the reconstructed image has also been reported.
B. n. An isopachic line or curve.
1931Coker & Filon Treat. Photo-Elasticity ii. 179 The lines of equal P are..obtained by taking successive intersections of isochromatics and isopachics, the parameters of the isochromatics going up one at a time, those of the isopachics going down one at a time; or conversely. 1958Condon & Odishaw Handbk. Physics iii. vi. 88/1 Curves of constant p + q are called isopachics. |