reciprocal strain ellipsoid

reciprocal strain ellipsoid

[ri′sip·rə·kəl ¦strān i′lip‚sȯid]
(mechanics)
In elastic theory, an ellipsoid of certain shape and orientation which under homogeneous strain is transformed into a set of orthogonal diameters of the sphere.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.