Macroscopic modelling and simulation of two-phase copper matrix materials subjected to tensile deformation

• Autorzy: Kosec B. , Kampus Z. , Kosec L. , Kosel F.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Phenomena of deformation and fracture of two-phase metal matrix materials are two very interesting problems in the sceintific field of materials science and engineering. The study of these two issues can greatly contribute to better mechanical and technological properties of two-phase metal matrix materials. Design/methodology/approach: This work presents macroscopic models of two-phase metal matrix material, composed of ductile matrix and more rigid and hard inclusions (inserts) of secondary phase, prepared for the tensile deformation. These types of models are enlarged for two to three orders of magnitude comparing to the real copper matrix materials, and they are suitable for numerical as well as experimental modelling and simulation. Findings: The basic aim of the numerical and experimental modelling is in the observation of the matrix material flow, and in analysis of the stress-strain state in the matrix. Research limitations/implications: Deficiencies in FEA of the tensile deformation process of represented models, are suppositions: that in the models a non-stressed initial state were supposed, that the secondary-phase inclusions and particles were simulated as perfect rigid bodies, and that the Coulumb coefficient of friction on the insert-matrix interface was assumed as a constant value. Practical implications: The changes of geometrical parameters of the tensile deformed macroscopic models have been experimentally observed with the hardness measurements, geometry measurements, image analysis, and non-destructive testing methods. Originality/value: The most important results of that macroscopic simulation is in the observation of the material flow, the formation and propagation of cracks, motion of the broken secondary-phase inclusions and particles in the matrix, and the stress-strain analysis.

Słowa kluczowe

EN

analysis; modelling; computational materials science; mechanics; composites; macroscopic modelling; finite element analysis

PL

analiza; modelowanie; komputerowa nauka o materiałach; mechanika; kompozyty; modelowanie makroskopowe; analiza elementów skończonych

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 15, nr 1-2
• Strony: 114--119
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr.

Twórcy

autor

Kosec B.

• Faculty of Natural Sciences and Engineering, University of Ljubljana, Askerceva 12, 1000 Ljubljana, Slovenia

autor

Kampus Z.

• Faculty of Mechanical Engineering,University of Ljubljana, Askerceva 6, 1000 Ljubljana, Slovenia

autor

Kosec L.

• Faculty of Natural Sciences and Engineering, University of Ljubljana, Askerceva 12, 1000 Ljubljana, Slovenia

autor

Kosel F.

• Faculty of Mechanical Engineering,University of Ljubljana, Askerceva 6, 1000 Ljubljana, Slovenia

Bibliografia

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