Mechanical properties and manufacturing of TiNi/GFRP smart composites

被引：6

作者：

Jang, BK ^{[1
]}

Toyama, N ^{[1
]}

Koo, JH ^{[1
]}

Kishi, T ^{[1
]}

机构：

[1] Natl Inst Adv Interdisciplinary Res, Tsukuba, Ibaraki 3058562, Japan

来源：

INTERNATIONAL JOURNAL OF MATERIALS & PRODUCT TECHNOLOGY | 2001年 / 16卷 / 1-3期

关键词：

TiNi; shape memory alloy; CFRP (carbon fiber reinforced plastics); tensile strength; microstructure; AE (acoustic emission); fiber breakage; microcrack;

D O I：

10.1504/IJMPT.2001.005403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiNi/CFRP composites were fabricated by sandwiching TiNi wires between layers of CFRP prepreg by hot-pressing in the temperature range of 150 similar to 180 degreesC, by controlling the applied pressure. The microstructural properties of hot-pressed TiNi/CFRP composites were investigated by SEM. The tensile strength of CFRP monolith not embedded with TiNi wires is 1.3GPa, whereas that of TiNi/CFRP composites is about 1.2GPa. The fracture behavior was studied by an AE technique under tensile test, to analyze the fracture process. It was confirmed that the detected AE signals resulted from generation of fiber breakage, interfacial debonding and microcracks in the epoxy matrix. The damage recovery effect of fractured specimens was successfully obtained by heating above 80 degreesC.

引用

页码：117 / 124

页数：8

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