Evaluation of fracture strength for ceramics with defects by numerical simulation (2nd report, characteristics of R-curve)

被引：0

作者：

Mori, Kazuya

Noguchi, Hiroshi

机构：

来源：

Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A | 1995年 / 61卷 / 584期

关键词：

Algorithms - Ceramic materials - Computer simulation - Cracks - Defects - Estimation - Fracture mechanics - Geometry - Stress concentration - Stress intensity factors - Stresses;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The influence of pre-crack length on an R-curve for ceramics with bridging is investigated by numerical simulation. Generally a pre-crack is introduced into the specimen for measurement of the R-curve. However, it is considered that the R-curve is influenced by the pre-crack length because the bridging stress distribution depends on the pre-crack length. In this study, R-curves are obtained by numerical simulation. In the numerical simulation, we establish an algorithm to evaluate the R-curve based on bridging stress. This algorithm can be used to estimate the characteristics of bridging through a certain R-curve obtained experimentally. Based on the results, it is shown that the R-curve for ceramics with bridging depends on the pre-crack length and the specimen geometry.

引用

页码：717 / 721

共 50 条

[21] Numerical simulation of cavitation by sub-surface vortex (2nd report, theoretical modeling of unsteady vortex cavitation)
Ito, Kei
Ezure, Toshiki
Ohno, Shuji
Kamide, Hideki
1600, Japan Society of Mechanical Engineers (79): : 838 - 847
[22] NUMERICAL SIMULATION OF FLOWS IN AN ENGINE CYLINDER. (2ND REPORT, FLOW IN A DEEP-BOWL COMBUSTION CHAMBER).
Ikegami, Makoto
Horibe, Kyohei
Komatsu, Gen'ichi
Bulletin of the JSME, 1986, 29 (250): : 1218 - 1224
[23] A research on the evaluation of grindability of fine-ceramics by constant pressure grinding (2nd Report) - Evaluation of the grindability based on change of removal rate
Sawa, Takekazu
Nagato, Yasuhiro
Ikuse, Yasushi
Unno, Kuniaki
Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering, 2008, 74 (07): : 735 - 739
[24] Study of analytical method for three-dimensional composite materials (2nd Report, Evaluation of tensile and compressive strength)
Nagai, Kanehiro
Yokoyama, Atsushi
Maekawa, Zen-ichiro
Hamada, Hiroyuki
Noguchi, Yoshiharu
Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1994, 60 (570): : 514 - 519
[25] Mechanical behavior of ceramic granule compact in cold isostatic pressing. (2nd report, numerical simulation of mechanical behavior)
Hamanaka, Jyunichi, 2004, (57):
[26] Plate theories based on successive higher-order approximation method (2nd report, numerical examples and accuracy characteristics)
Negishi, Yoshikazu
Hirashima, Ken-ichi
Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1994, 60 (576): : 1829 - 1836
[27] Reliability evaluation of joints of ceramics and metals (2nd report, the influence of changing the shape of a joint on the thermal stress of joined dissimilar materials)
Yada, Toshio
Koguchi, Hideo
Honzawa, Toyoshige
Kaya, Toshinori
Miyagawa, Matsuo
Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1988, 54 (508): : 2128 - 2134
[28] EVALUATION OF FRACTURE RESISTANCE OF A STABLY GROWING CRACK BY CRACK ENERGY DENSITY (2nd REPORT, APPLICATION TO A DUCTILE CRACK IN A THIN PLATE).
Watanabe, Katsuhiko
Azegami, Hideyuki
Hirano, Yasuo
1986, (52):
[29] EVALUATION OF THE FRACTURE RESISTANCE OF A STABLY GROWING CRACK BY CRACK ENERGY DENSITY (2ND REPORT, APPLICATION TO A DUCTILE CRACK IN THIN PLATE).
Watanabe, Katsuhiko
Azegami, Hideyuki
Hirano, Yasuo
Bulletin of the JSME, 1986, 29 (257): : 3693 - 3700
[30] Analysis of toughening mechanism of ceramic-matrix composites in consideration of interface debonding (2nd report, simulation of R-curves)
Yuuki, Ryoji
Liu, Yu-Fu
1995, JSME, Tokyo, Japan (61):

← 1 2 3 4 5 →