{"id":192453,"date":"2021-11-01T20:15:53","date_gmt":"2021-11-01T20:15:53","guid":{"rendered":"\/forum\/forums\/reply\/192453\/"},"modified":"2021-11-01T20:15:53","modified_gmt":"2021-11-01T20:15:53","slug":"192453","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/192453\/","title":{"rendered":"Reply To: How to calculate eigen frequencies using analytical approach?"},"content":{"rendered":"<p>,since you have already mentioned about the Hooke&#8217;s Law in this thread. I will try to pitch in a question here.<br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/forum-uploads\/415\/2XII17SO2POY.png\" width=\"190\" height=\"169\" \/>Since the general Stress-Strain relation can be  derived from the Hooke&#8217;s Law (which actually relates the force to displacement with a constant of proprtionality i.e. stiffness or K), so this general Stress-Strain relation should also hold if I am considering a change in stiffness of the structure during deformation of it? [For instance, a fishing rod which encounters a change in its stiffness when it deforms].<\/p>\n","protected":false},"template":"","class_list":["post-192453","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/192453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/192453\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=192453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}