On creep, recovery, and stress relaxation of carbon fiber-reinforced epoxy filament wound composites

被引：27

作者：

Almeida, Jose Humberto, Jr. ^{[1
]}

Ornaghi, Heitor L., Jr. ^{[2
]}

Lorandi, Natalia ^{[2
]}

Marinucci, Gerson ^{[3
]}

Amico, Sandro ^{[4
]}

机构：

[1] Leibniz Inst Polymerforsch Dresden eV, Dept Composite Mat, D-01069 Dresden, Germany

[2] Caxias Do Sul Univ, PGMAT, BR-95070560 Caxias Do Sul, RS, Brazil

[3] Nucl & Energet Res Inst IPEN CNEN, BR-05598900 Sao Paulo, SP, Brazil

[4] Univ Fed Rio Grande do Sul, PPGE3M, BR-91501970 Porto Alegre, RS, Brazil

来源：

POLYMER ENGINEERING AND SCIENCE | 2018年 / 58卷 / 10期

关键词：

BEHAVIOR; MODEL; NANOCOMPOSITES; CRITERION; STATE;

D O I：

10.1002/pen.24790

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work encompasses an analytical procedure and experimental tests for the study of creep/recovery, stress relaxation, and viscoelastic behavior, focusing on the glassy state, of carbon fiber-reinforced epoxy filament wound composites of distinct fiber orientation: [0](4), [30](4), and [60](4). The laminate with longitudinally aligned fibers did not show significant creep and its storage modulus was the highest in comparison to the other angles. Both creep and recovery responses were studied based on a Weibull distribution approach at two stress levels (2 and 5 MPa) and the results were found more comprehensive for the highest level. Stress relaxation modulus was calculated using 1% strain and decreased with the fiber orientation angle. The results were corroborated by those of isothermal tests based on non-linear regression. POLYM. ENG. SCI., 58:1837-1842, 2018. (c) 2017 Society of Plastics Engineers

引用

页码：1837 / 1842

页数：6

共 28 条

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