ΣΥΜΒΟΛΗ ΣΤΗΝ ΕΞΕΤΑΣΗ ΤΗΣ ΔΙΑΔΟΣΗΣ ΤΩΝ ΕΠΙΠΕΔΩΝ ΡΩΓΜΩΝ ΣΤΟΝ ΤΡΙΣΔΙΑΣΤΑΤΟ ΓΡΑΜΜΙΚΑ ΕΛΑΣΤΙΚΟ ΧΩΡΟ. ΟΙ ΦΑΣΕΙΣ ΤΗΣ ΕΝΑΡΞΗΣ ΤΗΣ ΔΙΑΔΟΣΗΣ ΚΑΙ ΤΗ...

IN THIS DISSERTATION THE EXAMINATION OF PLANE CRACKS, IN THE THREE-DIMENSIONAL SPACE, WHICH ARE DEFORMED ACCORDING TO THE OPENING MODE IS PRESENTED. IN THE PROCESS OF CALCULATION THE CRITERION OF THE MINIMUM STRAIN ENERGY DENSITY (MSED) WAS MAINLY USED, WHICH IS INDICATED FOR THE EXAMINATION OF THE INITIATION OF THE PROPAGATION AND OF THE STABLE AND UNSTABLE PROPAGATION OF THE CRACK. THIS CRITERION WAS CHECKED WITH REFERENCE TO ITS VALIDITY IN EXPERIMENT AND THEN WAS APPLIED FOR THE CASE OF GRADUAL INFLICTION OF A LOAD AND FOR THE REPETITION OF INFLICTION OF A LOAD. CERTAIN HYPOTHESES OF THIS CRITERION WERE COMBINED WITH THECRITERION OF RELEASE OF ENERGY OF THE GRIFFITH SURFACES, WHICH IN THIS WAY WASSPREAD FOR CASUAL GEOMETRIES OF SPECIMENS AND CRACKS . WITH THE EXPANSION OF THE CRITERION OF MSED FOR THE CASE OF THE REPEATED LOADING THE GEOMETRY OF TH CRACK, WHEN IT IS PROPAGATED WITH STABILITY, WAS CALCULATED. FINALLY CALCULATIONSWERE MADE WITH REFERENCE TO THE INFLUENCE OF THE VELOCITY OF INFLICTION OF THELOAD IN THE DETERMINATION OF THE VALUE OF THE CRITICAL LOAD AND THEREFORE ALSOIN THE DEGREE OF THE BRITTLENESS OF THE CONSTRUCTION. (SHORTENED)

Grantor dc:publisher

Δημοκρίτειο Πανεπιστήμιο Θράκης (ΔΠΘ)

Year dc:date

1987

Author dc:creator

• Χατζητρύφων, Νικόλαος

• CORNER CRACK
• Crack
• CRACK GROWTH STABIL, INSTABIL
• EMBEDDED CRACK
• ENERGETIC FRUCTURE CRITERION
• Fractures
• GRIFFITH CRITERION
• PLANE CRACK
• SURFACE CRACK
• ΓΩΝΙΑΚΗ ΡΩΓΜΗ
• ΔΙΑΔΟΣΗ ΡΩΓΜΩΝ ΕΥΣΤΑΘΗΣ ΑΣΤΑΘΗΣ
• ΕΝΣΩΜΑΤΩΜΕΝΗ ΡΩΓΜΗ
• ΕΠΙΦΑΝΕΙΑΚΗ ΡΩΓΜΗ
• Θραύση
• ΚΡΙΤΗΡΙΟ GRIFFITH
• ΚΡΙΤΗΡΙΟ ΘΡΑΥΣΗΣ ΕΝΕΡΓΕΙΑΚΟ
• ΡΩΓΜΗ ΕΠΙΠΕΔΗ
• Engineering and Technology
• Civil Engineering
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Πολιτικού Μηχανικού

Language dc:language

gre

Identifier

10.12681/eadd/0642

OAI identifier oai:identifier

oai:10442/0642