caa a22 4500 465750702 CHVBK 20180323111833.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF02322697 doi (NATIONALLICENCE)springer-10.1007/BF02322697 Experimental dynamic analysis of cracked free-free beams [Elektronische Daten] [J. Montalvão E Silva, A. Aráujo Gomes] The use of modal-analysis techniques as nondestructive methods for the detection of cracks in beams is a current field of interest for various researchers. However, an extensive search of the published literature shows that there is very little information on experimental results, thus making it almost impossible for theoretical researchers to use published experimental data to validate their models. The authors, who are currently working in the field of crack detection through modal analysis, performed an extensive experimental dynamic analysis of free-free beams with the objective of validating theoretical techniques, under development, for the prediction of the location and depth of cracks in straight beams. This paper describes the first part of the authors' work. The experimental techniques used are described and results obtained for various locations and depths of cracks in a straight free-free beam are presented. Society for Experimental Mechanics, Inc., 1990 Montalvão E Silva J. Department of Mechanical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1096, Lisboa Codex, Portugal aut Aráujo Gomes A. Faculty of Sciences and Technology, Universidade Nova de Lisboa, Quinta da Torre, 2825, Monte da Caparica, Portugal aut Experimental Mechanics Kluwer Academic Publishers 30/1(1990-03-01), 20-25 0014-4851 30:1<20 1990 30 11340 https://doi.org/10.1007/BF02322697 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02322697 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Montalvão E Silva J. Department of Mechanical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1096, Lisboa Codex, Portugal aut NATIONALLICENCE 700 1- Aráujo Gomes A. Faculty of Sciences and Technology, Universidade Nova de Lisboa, Quinta da Torre, 2825, Monte da Caparica, Portugal aut NATIONALLICENCE 773 0- Experimental Mechanics Kluwer Academic Publishers 30/1(1990-03-01), 20-25 0014-4851 30:1<20 1990 30 11340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer