ΜΕΛΕΤΗ ΤΗΣ ΕΛΑΣΤΙΚΗΣ-ΑΠΟΛΥΤΩΣ ΠΛΑΣΤΙΚΗΣ ΕΝΤΑΤΙΚΗΣ ΚΑΙ ΠΑΡΑΜΟΡΦΩΣΙΑΚΗΣ ΚΑΤΑΣΤΑΣΕΩΣ ΡΗΓΜΑΤΩΜΕΝΩΝ ΠΛΑΚΩΝ ΣΕ ΣΥΝΘΗΚΕΣ ΕΠΙΠΕΔΟΥ ΕΝΤΑΣΕΩΣ

IN THE PRESENT STUDY AN EXPERIMENTAL METHOD OF DEFINITION OF THE STRESS AND STRAIN FIELD AROUND THE CRACK TIP IN METALLIC EDGE CRACKED SPECIMENS DEVELOPS. THEBIREFRINGENT COATING TECHNIQUE WAS APPLIED TO ESTIMATE ELASTIC AND PLASTIC DEFORMATIONS AS WELL AS TO DEFINE THE ELASTIC-PLASTIC BOUNDARIES IN SUCCESSIVE LOADING STEPS UNDER CONDITION OF PLANE STRESS. THE ANALYTICAL CALCULATION OF STRESS STATE BASED ON EXPERIMENTAL DATA WAS CARRIED OUT WITH THE AID OF THE THEORY OF ELASTIC FULLY PLASTIC MATERIALS. THE DIFFERENTIAL EQUATIONS OF PRANDTL-RENSS AS WELL AS THE CRITERION OF V. MISES WERE USED. PARTICULARLY THE PRESENT WORK REFERS TO THE VERY DIFFICULT PROBLEM OF DETERMINATION OF THE STRESS AND DEFORMATION FIELD IN THE VICINITY OF THE CRACK TIP OF A RECTANGULAR TENSILE METALLIC SHEET WITH SYMMETRIC EDGE CRACKS WITH THE BIREFRIGENT COATING TECHNIQUE OF PHOTELASTICITY.

Grantor dc:publisher

National Technical University of Athens (NTUA)

Year dc:date

1989

Author dc:creator

• Κυριαζή, Ευαγγελία

• BIREFRINGENT COATING
• ELASTOPLASTIC BOUNDARY
• ISCHROMATIC CURVES
• ISOCLINIC CURVES
• Plasticity
• Stress intensity factors
• SYMMETRIC CRACKS
• ΔΙΠΛΟΠΛΑΣΤΙΚΕΣ ΕΠΙΣΤΡΩΣΕΙΣ
• ΕΛΑΣΤΟΠΛΑΣΤΙΚΟ ΣΥΝΟΡΟ
• ΙΣΟΚΛΙΝΕΙΣ ΚΑΜΠΥΛΕΣ
• ΙΣΟΧΡΩΜΟΙ ΚΑΜΠΥΛΕΣ
• Πλαστικότητα
• ΣΥΜΜΕΤΡΙΚΕΣ ΡΩΓΜΕΣ
• Συντελεστής έντασης τάσεων
• Φυσικές Επιστήμες
• Φυσική
• Επιστήμες Μηχανικού και Τεχνολογία
• Μηχανική Υλικών
• Natural Sciences
• Physical Sciences
• Engineering and Technology
• Materials Engineering

Language dc:language

gre

Identifier

10.12681/eadd/1137

OAI identifier oai:identifier

oai:10442/1137