Long-term prediction of creep strain of expanded polystyrene

被引：4

作者：

Gnip, IJ ^{[1
]}

Kersulis, VI ^{[1
]}

Vaitkus, SI ^{[1
]}

Veyelis, SA ^{[1
]}

机构：

[1] Gediminas Vilnius Tech Univ, Thermoinsulat Inst, Vilnius, Lithuania

来源：

MECHANICS OF COMPOSITE MATERIALS | 2005年 / 41卷 / 06期

关键词：

expanded polystyrene; long-term compression; strain; creep prediction;

D O I：

10.1007/s11029-006-0007-6

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Data obtained in investigating the creep of expanded polystyrene in compression are discussed. An analysis of the results of creep tests 65-608 days long showed that the creep can be predicted for 50 years based on experiments of less duration than the 605 days indicated in EN 13163. For this purpose, it is suggested to employ a 95-fold extrapolation in time if the creep curves are described by a power function (as recommended by EN 13163) or a 50-fold extrapolation if the exponential equation proposed in the present paper is used.

引用

页码：535 / 540

页数：6

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