Mechanical instability of a porous material

Buyakova, S. P.; Maslovskii, V. I.; Никитин, Д. С.; Kulkov, S. N.

doi:10.1134/1.1432322

Cited by 4 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the one hand, the role of porosity as the main structural factor is associated with the absence of the effective mechanism of structural relaxation due to a dislocation motion, and, on the other hand, with the long-range interactions in the ensemble of pores growing during the deformation. These features determine the pore clustering, damage-failure kinetics and mechanical properties in a wide range of load intensity [1]. Study of the effect of porosity revealed the influence of the porous cluster morphology on the deformation properties of ceramics ZrO 2 (Y 2 O 3 ) [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…These features determine the pore clustering, damage-failure kinetics and mechanical properties in a wide range of load intensity [1]. Study of the effect of porosity revealed the influence of the porous cluster morphology on the deformation properties of ceramics ZrO 2 (Y 2 O 3 ) [1,2]. This is associated with a change in pore distributions related to the transition from the isolated pore structure to the structure with pore clustering.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effect of porosity on fragmentation statistics of dynamically loaded ZrO2 ceramics

Davydova

Uvarov

Naimark

2017

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

The effect of load intensity and porous material structure on the fragmentation statistics of ZrO2(MgO)-based ceramics is studied. Cylindrical samples were fragmented under dynamic compression. Experimental data processing showed that the shape of stress-strain curves, the fragment size distribution and distribution of time intervals between the fractoluminiscense impulses depend on the sample porosity and load intensity. The X-ray Computed Tomography (CT) study of porous material structures allowed us to link the fragmentation statistics with pronounced porosity clustering (about 97% of the total pore volume) formed due to sintering.Citation: Davydova, M., Uvarov, S., Naimark, O., The effect of sample porosity on statistical regularities of dynamical fragmentation of ceramic ZrO2, Frattura ed Integrità Strutturale, 43 (2018) 106-112.

show abstract

Section: Introductionmentioning

confidence: 99%