Energetic analysis of fracture of ductile solids with cracks

Autor:	Yevgeny Deryugin
Rok vydání:	2019
Předmět:	Materials science Fracture toughness Free surface mental disorders Fracture (geology) Plasticity Composite material Stress distribution Characteristic energy
Zdroj:	PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019.
ISSN:	0094-243X
DOI:	10.1063/1.5131936
Popis:	The paper proposes a new crack model, taking into account the effect of plastic strain gradients at the free surface of a crack on the energy characteristics of fracture of plastically deformable solids with cracks. The proposed model allows us to analyze the effect of the magnitude and gradients of plastic strain on the concentration and stress distribution at the crack tip. It is shown that the gradient of plastic strain at the free surface of a crack plays a crucial role in the calculations of the fracture toughness of a solid with a crack. The obtained equations can be used to calculate the characteristics of the fracture toughness of plastically deformable materials.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d5377276a5ac45c592a533d0404b84bc https://doi.org/10.1063/1.5131936 Zobrazit plný text záznamu