Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Fracture toughness and failure mechanism of alumina and zirconia ceramics over a wide loading rate range. / Xu, Zejian; Cai, Zhicheng; Han, Yang; Игушева, Людмила Александровна; Чжао, Шисян; Петров, Юрий Викторович; Huang, Fenglei.
в: International Journal of Impact Engineering, Том 209, 105591, 03.2026.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Fracture toughness and failure mechanism of alumina and zirconia ceramics over a wide loading rate range
AU - Xu, Zejian
AU - Cai, Zhicheng
AU - Han, Yang
AU - Игушева, Людмила Александровна
AU - Чжао, Шисян
AU - Петров, Юрий Викторович
AU - Huang, Fenglei
PY - 2026/3
Y1 - 2026/3
N2 - The split Hopkinson pressure bar (SHPB) system and a universal testing machine were used to measure the fracture toughness of zirconia (ZrO2) and alumina (Al2O3) ceramics across a wide range of loading rates from 1.0 × 10-8 to 2.0 TPa·m1/2·s-1. The experimental-numerical method was used to determine the dynamic fracture toughness of the materials. The results exhibit a positive relationship between fracture toughness and loading rate as well as a negative correlation between fracture initiation time and loading rate for both of the ceramics. The analysis of fracture morphology reveals different micromechanism in the failure of the materials under different loading rates. This analysis offers an explanation for the dependency of fracture toughness on loading rates. Additionally, the incubation time criterion and its modified version were employed to describe the effects of loading rate on fracture toughness and fracture initiation time.
AB - The split Hopkinson pressure bar (SHPB) system and a universal testing machine were used to measure the fracture toughness of zirconia (ZrO2) and alumina (Al2O3) ceramics across a wide range of loading rates from 1.0 × 10-8 to 2.0 TPa·m1/2·s-1. The experimental-numerical method was used to determine the dynamic fracture toughness of the materials. The results exhibit a positive relationship between fracture toughness and loading rate as well as a negative correlation between fracture initiation time and loading rate for both of the ceramics. The analysis of fracture morphology reveals different micromechanism in the failure of the materials under different loading rates. This analysis offers an explanation for the dependency of fracture toughness on loading rates. Additionally, the incubation time criterion and its modified version were employed to describe the effects of loading rate on fracture toughness and fracture initiation time.
KW - Alumina ceramics
KW - Fracture morphology analysis
KW - Fracture toughness
KW - Loading rate effect
KW - Zirconia ceramics
UR - https://www.mendeley.com/catalogue/c155ba97-4e1e-354c-8853-1b99dfe6fe72/
U2 - 10.1016/j.ijimpeng.2025.105591
DO - 10.1016/j.ijimpeng.2025.105591
M3 - Article
VL - 209
JO - International Journal of Impact Engineering
JF - International Journal of Impact Engineering
SN - 0734-743X
M1 - 105591
ER -
ID: 144499746