The　size-　and　strain-dependent　buckle　dimensions　of　nanostructured　Cu/Nb　multilayers　have　been　systematically　investigated　as　a　function　of　modulation　ratios　eta,　ranging　from　0.1　to　2.0.　It　is　found　that　the　evolution　of　buckle　dimensions　with　applied　strain　a　exhibits　different　trends,　highly　dependent　on　n.　The　buckle　dimensions　of　the　smaller　n　multilayers　gradually　increase　with　the　increase　in　applied　strain　a,　while　those　of　the　larger　17　multilayers　are　independent　on　a.　The　average　buckle　dimensions　are　also　found　to　increase　monotonically　with　the　decreasing　n.　The　size-　and　strain-dependent　buckle　dimensions,　related　to　the　buckle　propagation,　can　be　explained　reasonably　in　terms　of　size-dependent　plastic　deformation.　(C)　2017　Elsevier　B.V.　All　rights　reserved.