FRACTURE-TOUGHNESS AND ACOUSTIC-EMISSION BEHAVIOR OF DENTAL COMPOSITE RESINS

被引：18
|
作者：
KIM, KH
PARK, JH
IMAI, Y
KISHI, T
机构：
[1] TOKYO MED & DENT UNIV,INST MED & DENT ENGN,CHIYODA KU,TOKYO 113,JAPAN
[2] UNIV TOKYO,ADV SCI & TECHNOL RES CTR,MEGURO KU,TOKYO 153,JAPAN
[3] KYUNGPOOK NATL UNIV,COLL DENT,DEPT CONSERVAT DENT,TAEGU,SOUTH KOREA
来源：
ENGINEERING FRACTURE MECHANICS | 1991年 / 40卷 / 4-5期
关键词：
D O I：
10.1016/0013-7944(91)90238-V
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Fracture toughness and bending properties of three types of dental composite resins (macrofilled type, microfilled type and hybrid type) were determined. In acoustic emission behavior during fracture toughness test, characterisitic generation patterns of each type were understood. The fracture toughness values, AE generation patterns and the nature of the fracture surface were analyzed to construct a microscopic fracture model. Fracture toughness was calculated quantitatively by a critical strain criterion based on a microscopic fracture model.
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页码：811 / 819
页数：9
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