Experimental study of size effect on quasi-static strengths for short glass fibre-reinforced plastics

被引：2

作者：

Sawada, Takahiko ^{[1
]}

Kusaka, Takayuki ^{[2
]}

机构：

[1] Hitachi Ltd, Res & Dev Grp, Ctr Technol Innovat Mech Engn, Hitachinaka, Ibaraki, Japan

[2] Ritsumeikan Univ, Dept Mech Engn, Kusatsu, Japan

来源：

ADVANCED COMPOSITE MATERIALS | 2018年 / 27卷 / 03期

关键词：

short glass fibre-reinforced plastics; size effects; strength; ELASTIC-MODULUS; TENSILE PROPERTIES; FLEXURAL STRENGTH; COMPOSITES; ORIENTATION; POLYMERS; PREDICTION; ANISOTROPY; FRACTURE; EPOXY;

D O I：

10.1080/09243046.2017.1387953

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The present paper examines size effect on the strength of short glass fibre-reinforced phenolic resin (SGP) composites made by press moulding with different loading modes and specimen shapes. Three- and four-point flexural tests and tension-torsion combined tests were conducted at room temperature in order to evaluate the influence of V-f and loading mode on fracture strength. The obtained uniaxial strength data were analysed using the Weibull statistical theory. The relationship between fracture strength and effective volume was investigated based on the Weibull statistical theory and agreed well with the effective volume theory (EVT), regardless of specimen size, dimensions or loading mode. The experimental results revealed that the tension-torsion multiaxial SGP strength was in agreement with the Tsai-Hill failure criterion. The EVT was also applied to the Tsai-Hill failure criterion to consider the size effect, and the validity of the proposed method was confirmed experimentally.

引用

页码：261 / 278

页数：18

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