01697nam 2200397 450 991070359030332120150122155930.0(CKB)5470000002431794(OCoLC)900615778(EXLCZ)99547000000243179420150122d1946 ua 0engurbn|||||||||rdacontentrdamediardacarrierImpact resistance of three core materials and six sandwich constructions as measured by falling-ball tests /by K.H. BollerMadison, Wisconsin :United States Department of Agriculture, Forest Service, Forest Products Laboratory,1946.1 online resource (17 unnumbered pages) illustrationsReport ;no. 1543Title from title screen (viewed Jan. 6, 2015)."February 1946."Publication pre-dates Federal Depository Library Program (FDLP) item numbers. No FDLP item number has been assigned."This report is one of a series issued in cooperation with the Army-Navy-Civil Committee on Aircraft Design Criteria under the supervision of the Aeronautical Board.""In cooperation with the University of Wisconsin."Sandwich constructionSandwich construction.Boller Kenneth H.1393251Forest Products Laboratory (U.S.),University of Wisconsin.GPOGPOBOOK9910703590303321Impact resistance of three core materials and six sandwich constructions as measured by falling-ball tests3475563UNINA