Study on temperature dependency of dynamic stress intensity factor of polycarbonate

被引：0

作者：

Kobayashi, R ^{[1
]}

Ito, H ^{[1
]}

Ezumi, T ^{[1
]}

Takahashi, S ^{[1
]}

机构：

[1] Shibaura Inst Technol, Dept Mech Engn, Minato Ku, Yokohama, Kanagawa, Japan

来源：

24TH INTERNATIONAL CONGRESS ON HIGH-SPEED PHOTOGRAPHY AND PHOTONICS | 2001年 / 4183卷

关键词：

experimental stress analysis; caustics method; stress intensity factor; fracture mechanics; impact load; high temperature; simple high-speed photography method; dehydration processing;

D O I：

10.1117/12.424262

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

It is very important to understand a dynamic fracture behavior under the high temperature environment. However, these researches of polymeric materials is unexpectedly little. In this study, the cracked polycarbonate plate was used for a sample material, and carry out the impact three point bending test in the electric furnace. The caustics method and the simple highspeed photography method was used for the analysis. As experimental results, A different fracture behavior was shown whether by doing the dehydration processing same normal temperature (23.5 degreesC). At the higher temperature, the dynamic stress intensity factor indicated lower value. In addition, it has been understood that there is a tendency to which the fracture toughness value decreases while becoming a high temperature.

引用

页码：1004 / 1009

页数：6

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