Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi

More accurate mathematical description in the assessment of plastic zone magnitude around the crack tip (CROSBI ID 275573)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Pustaić, Dragan ; Lovrenić-Jugović, Martina More accurate mathematical description in the assessment of plastic zone magnitude around the crack tip // Procedia structural integrity, 23 (2019), 27-32. doi: 10.1016/j.prostr.2020.01.058

Podaci o odgovornosti

Pustaić, Dragan ; Lovrenić-Jugović, Martina

engleski

More accurate mathematical description in the assessment of plastic zone magnitude around the crack tip

The thin infinite central cracked plate, made of ductile metallic material, is observed. The plate is loaded with uniformly distributed continuous loading, according to the Fig. 1a. The small plastic zones around crack tips will appear. It is assumed an isotropic and non- linear strain hardening of a plate material which can be good described by the Ramberg- Osgood equation. The investigations were carried out for the several discrete values of the strain hardening exponent n, i.e. for n = 3, 5, 7, 10, 25, 50 and 1000. The magnitude of plastic zone is investigated on the basis of the premises of the Dugdale´s cohesive model. In the frame of applied cohesive model, the problem is formulated fully exact. The analytical methods were applied. Our intention is to contribute in a more accurate mathematical description of the phenomena occurring within the cohesive zones and to solve the problems, in so called closed-form, without any additional assumptions, as for example, about small plastic zones (SSY), elastic-perfectly plastic material and so on. The commercial software Wolfram Mathematica 7.0 is used and the solutions are presented through the special, the Gamma and the Hypergeometric functions.

Elastic Plastic Fracture Mechanics ; Cohesive stress ; Isotropic and non-linear strain hardening material ; Strain hardening exponent ; Plastic zone magnitude around crack tip

Rad, sa sličnim sadržajem, prethodno je objavljen na međunarodnoj konferenciji "9th International Conference on Materials Structure and Micromechanics of Fracture" koja je od 26. do 28. lipnja 2019. godine održana u Brnu, u Češkoj.

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

23

2019.

27-32

objavljeno

2452-3216

10.1016/j.prostr.2020.01.058

Povezanost rada

Brodogradnja, Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

Poveznice