Influence of finite deformations on the growth mechanism of microvoids contained in structural metals

• Autorzy: Dornowski W.
• Języki publikacji: EN

Abstrakty

EN

In this paper an analysis of the growth mechanism of the single microvoid for finite deformations is presented. A hollow sphere model is assumed. Such a model has been considered in many previous papers, however on the assumption that the strains remain small. The material surrounding the microvoid is assumed to be work-hardening, viscoplastic, described by the constitutive equations formulated by PERZYNA [l]. Quantitative and qualitative distinctions between the presented solution and geometrically linear solution are discussed. On the basis of the obtained solution, constitutive functions of a certain damage evolution equation for the complex stress state have been identified. A numerical example of the fracture analysis for a structural element is presented.

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Archives of Mechanics
• Rocznik: 1999
• Tom: Vol. 51, nr 1
• Strony: 71--86
• Opis fizyczny: Bibliogr. 14 poz.,Rys., wykr.,

Twórcy

autor

Dornowski W.

• Military University of Technology, Kaliskiego 2, 01-489 Warszawa, Poland