{"id":{"repo_id":"greece","oai_identifier":"oai:10442/0679"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/0679","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΔΙΑΔΟΣΗ ΤΑΣΙΚΩΝ ΚΥΜΑΤΩΝ ΣΕ ΣΥΝΘΕΤΑ ΥΛΙΚΑ ΚΑΙ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΤΟΥΣ ΙΔΙΟΤΗΤΩΝ","abstract":"IN THE WORK WITH SUBJECT \"WAVE PROPAGATION OF ELASTIC WAVES IN COMPOSITE MATERIALS\" HAVE BEEN DEVELOPED THE LOW-FREQUENCY SCATTERING THEORY OF ELASTIC WAVES BY A PENETRABLE SCATTERER WITH A PENETRABLE CORE. ANALYTICAL EXPANTIONS FOR THE SCATTERING AMPLITUDES AND FOR THE SCATTERING CROSS-SECTION HAVE ALSO BEEN DERIVED. USING THE SCATTERING CROSS-SECTION THE DYNAMIC MODULI OF COMPOSITE MATERIALS WITH RIGID SPHERICAL, ELLIPSOIDAL AND SPHEROIDAL INCLUSIONS HAVE BEEN COMPUTED. PARAMETER STUDIES FOR DESIGN PURPOSES ARE GIVEN.","abstract_html":"IN THE WORK WITH SUBJECT "WAVE PROPAGATION OF ELASTIC WAVES IN COMPOSITE MATERIALS" HAVE BEEN DEVELOPED THE LOW-FREQUENCY SCATTERING THEORY OF ELASTIC WAVES BY A PENETRABLE SCATTERER WITH A PENETRABLE CORE. ANALYTICAL EXPANTIONS FOR THE SCATTERING AMPLITUDES AND FOR THE SCATTERING CROSS-SECTION HAVE ALSO BEEN DERIVED. USING THE SCATTERING CROSS-SECTION THE DYNAMIC MODULI OF COMPOSITE MATERIALS WITH RIGID SPHERICAL, ELLIPSOIDAL AND SPHEROIDAL INCLUSIONS HAVE BEEN COMPUTED. PARAMETER STUDIES FOR DESIGN PURPOSES ARE GIVEN.","abstract_has_math":false,"creators":["Πολύζος, Δημοσθένης"],"institution":"University of Patras","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1988,"date_issued":"1988","date_published":"1988","updated_at":"2026-07-24T02:25:24Z","subjects":["Δυναμικές ιδιότητες","Ελαστικά κύματα","Σκέδαση","Σύνθετα υλικά","Composite materials","Dynamic properties","Elastic waves","Scattering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού","Engineering and Technology","Mechanical Engineering"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0679"],"render_values":[{"text":"10.12681/eadd/0679","href":"https://doi.org/10.12681/eadd/0679","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/0679","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Πολύζος, Δημοσθένης"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1988"]},{"key":"dc:publisher","label":"Institution","values":["University of Patras","Πανεπιστήμιο Πατρών"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Δυναμικές ιδιότητες","Ελαστικά κύματα","Σκέδαση","Σύνθετα υλικά","Composite materials","Dynamic properties","Elastic waves","Scattering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού","Engineering and Technology","Mechanical Engineering"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/0679","http://hdl.handle.net/10442/hedi/0679"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["IN THE WORK WITH SUBJECT \"WAVE PROPAGATION OF ELASTIC WAVES IN COMPOSITE MATERIALS\" HAVE BEEN DEVELOPED THE LOW-FREQUENCY SCATTERING THEORY OF ELASTIC WAVES BY A PENETRABLE SCATTERER WITH A PENETRABLE CORE. ANALYTICAL EXPANTIONS FOR THE SCATTERING AMPLITUDES AND FOR THE SCATTERING CROSS-SECTION HAVE ALSO BEEN DERIVED. USING THE SCATTERING CROSS-SECTION THE DYNAMIC MODULI OF COMPOSITE MATERIALS WITH RIGID SPHERICAL, ELLIPSOIDAL AND SPHEROIDAL INCLUSIONS HAVE BEEN COMPUTED. PARAMETER STUDIES FOR DESIGN PURPOSES ARE GIVEN.","ΣΤΗΝ ΕΡΓΑΣΙΑ ΜΕ ΘΕΜΑ \"ΔΙΑΔΟΣΗ ΤΑΣΙΚΩΝ ΚΥΜΑΤΩΝ ΣΕ ΣΥΝΘΕΤΑ ΥΛΙΚΑ ΚΑΙ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΤΟΥΣ ΙΔΙΟΤΗΤΩΝ\" ΕΧΕΙ ΑΝΑΠΤΥΧΘΕΙ Η ΒΑΣΙΚΗ ΘΕΩΡΙΑ ΣΚΕΔΑΣΗΣ ΕΛΑΣΤΙΚΩΝ ΚΥΜΑΤΩΝ ΑΠΟ ΔΙΑΠΕΡΑΤΟΥΣ ΣΚΕΔΑΣΤΕΣ ΜΕ ΔΙΑΠΕΡΑΤΟΥΣ ΠΥΡΗΝΕΣ. ΕΧΟΥΝ ΒΡΕΘΕΙ ΑΝΑΛΥΤΙΚΕΣ ΕΚΦΡΑΣΕΙΣ ΓΙΑ ΤΑ ΕΝΕΡΓΕΙΑΚΑ ΠΛΑΤΗ ΚΑΙ ΤΗΝ ΕΝΕΡΓΕΙΑΚΗ ΔΙΑΤΟΜΗ ΣΚΕΔΑΣΗΣ. ΤΟ ΠΡΟΒΛΗΜΑ ΕΧΕΙ ΑΝΤΙΜΕΤΩΠΙΣΘΕΙ ΜΕ ΤΗΝ ΜΕΘΟΔΟ ΤΩΝ ΧΑΜΗΛΩΝ ΣΥΧΝΟΤΗΤΩΝ. ΣΤΗ ΣΥΝΕΧΕΙΑ ΧΡΗΣΙΜΟΠΟΙΩΝΤΑΣ ΤΗΝ ΕΝΕΡΓΕΙΑΚΗ ΔΙΑΤΟΜΗ ΣΚΕΔΑΣΗΣ ΔΙΝΟΝΤΑΙ ΑΝΑΛΥΤΙΚΕΣ ΕΚΦΡΑΣΕΙΣ ΓΙΑ ΤΟ ΔΥΝΑΜΙΚΟ ΜΕΤΡΟ ΕΛΑΣΤΙΚΟΤΗΤΑΣ ΣΥΝΘΕΤΩΝ ΥΛΙΚΩΝ ΤΑ ΟΠΟΙΑ ΠΕΡΙΕΧΟΥΝ ΑΠΑΡΑΜΟΡΦΩΤΑ ΣΦΑΙΡΙΚΑ ΕΛΛΕΙΨΟΕΙΔΗ ΚΑΙ ΒΕΛΟΝΟΕΙΔΗ ΕΓΚΛΕΙΣΜΑΤΑ."]},{"key":"dc:title","label":"Title","values":["ΔΙΑΔΟΣΗ ΤΑΣΙΚΩΝ ΚΥΜΑΤΩΝ ΣΕ ΣΥΝΘΕΤΑ ΥΛΙΚΑ ΚΑΙ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΤΟΥΣ ΙΔΙΟΤΗΤΩΝ","WAVE PROPAGATION OF ELASTIC WAVES IN COMPOSITE MATERIALS"]}]}],"canonical_facts":{"dc:creator":["Πολύζος, Δημοσθένης"],"dc:date":["1988"],"dc:description":["IN THE WORK WITH SUBJECT \"WAVE PROPAGATION OF ELASTIC WAVES IN COMPOSITE MATERIALS\" HAVE BEEN DEVELOPED THE LOW-FREQUENCY SCATTERING THEORY OF ELASTIC WAVES BY A PENETRABLE SCATTERER WITH A PENETRABLE CORE. ANALYTICAL EXPANTIONS FOR THE SCATTERING AMPLITUDES AND FOR THE SCATTERING CROSS-SECTION HAVE ALSO BEEN DERIVED. USING THE SCATTERING CROSS-SECTION THE DYNAMIC MODULI OF COMPOSITE MATERIALS WITH RIGID SPHERICAL, ELLIPSOIDAL AND SPHEROIDAL INCLUSIONS HAVE BEEN COMPUTED. PARAMETER STUDIES FOR DESIGN PURPOSES ARE GIVEN.","ΣΤΗΝ ΕΡΓΑΣΙΑ ΜΕ ΘΕΜΑ \"ΔΙΑΔΟΣΗ ΤΑΣΙΚΩΝ ΚΥΜΑΤΩΝ ΣΕ ΣΥΝΘΕΤΑ ΥΛΙΚΑ ΚΑΙ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΤΟΥΣ ΙΔΙΟΤΗΤΩΝ\" ΕΧΕΙ ΑΝΑΠΤΥΧΘΕΙ Η ΒΑΣΙΚΗ ΘΕΩΡΙΑ ΣΚΕΔΑΣΗΣ ΕΛΑΣΤΙΚΩΝ ΚΥΜΑΤΩΝ ΑΠΟ ΔΙΑΠΕΡΑΤΟΥΣ ΣΚΕΔΑΣΤΕΣ ΜΕ ΔΙΑΠΕΡΑΤΟΥΣ ΠΥΡΗΝΕΣ. ΕΧΟΥΝ ΒΡΕΘΕΙ ΑΝΑΛΥΤΙΚΕΣ ΕΚΦΡΑΣΕΙΣ ΓΙΑ ΤΑ ΕΝΕΡΓΕΙΑΚΑ ΠΛΑΤΗ ΚΑΙ ΤΗΝ ΕΝΕΡΓΕΙΑΚΗ ΔΙΑΤΟΜΗ ΣΚΕΔΑΣΗΣ. ΤΟ ΠΡΟΒΛΗΜΑ ΕΧΕΙ ΑΝΤΙΜΕΤΩΠΙΣΘΕΙ ΜΕ ΤΗΝ ΜΕΘΟΔΟ ΤΩΝ ΧΑΜΗΛΩΝ ΣΥΧΝΟΤΗΤΩΝ. ΣΤΗ ΣΥΝΕΧΕΙΑ ΧΡΗΣΙΜΟΠΟΙΩΝΤΑΣ ΤΗΝ ΕΝΕΡΓΕΙΑΚΗ ΔΙΑΤΟΜΗ ΣΚΕΔΑΣΗΣ ΔΙΝΟΝΤΑΙ ΑΝΑΛΥΤΙΚΕΣ ΕΚΦΡΑΣΕΙΣ ΓΙΑ ΤΟ ΔΥΝΑΜΙΚΟ ΜΕΤΡΟ ΕΛΑΣΤΙΚΟΤΗΤΑΣ ΣΥΝΘΕΤΩΝ ΥΛΙΚΩΝ ΤΑ ΟΠΟΙΑ ΠΕΡΙΕΧΟΥΝ ΑΠΑΡΑΜΟΡΦΩΤΑ ΣΦΑΙΡΙΚΑ ΕΛΛΕΙΨΟΕΙΔΗ ΚΑΙ ΒΕΛΟΝΟΕΙΔΗ ΕΓΚΛΕΙΣΜΑΤΑ."],"dc:identifier":["10.12681/eadd/0679","http://hdl.handle.net/10442/hedi/0679"],"dc:language":["gre"],"dc:publisher":["University of Patras","Πανεπιστήμιο Πατρών"],"dc:subject":["Δυναμικές ιδιότητες","Ελαστικά κύματα","Σκέδαση","Σύνθετα υλικά","Composite materials","Dynamic properties","Elastic waves","Scattering","Επιστήμες Μηχανικού και Τεχνολογία","Επιστήμη Μηχανολόγου Μηχανικού","Engineering and Technology","Mechanical Engineering"],"dc:title":["ΔΙΑΔΟΣΗ ΤΑΣΙΚΩΝ ΚΥΜΑΤΩΝ ΣΕ ΣΥΝΘΕΤΑ ΥΛΙΚΑ ΚΑΙ ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΤΩΝ ΔΥΝΑΜΙΚΩΝ ΤΟΥΣ ΙΔΙΟΤΗΤΩΝ","WAVE PROPAGATION OF ELASTIC WAVES IN COMPOSITE MATERIALS"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:25:24Z"}