AN EXPERIMENTAL-STUDY OF RESIDUAL FIBER STRAINS IN TI-15-3 CONTINUOUS FIBER COMPOSITES

被引：24

作者：

PICKARD, SM

MIRACLE, DB

MAJUMDAR, BS

KENDIG, KL

ROTHENFLUE, L

COKER, D

机构：

[1] USAF, WRIGHT LAB, WRIGHT PATTERSON AFB, OH 45433 USA

[2] SYSTRAN CORP, DAYTON, OH USA

[3] UES INC, DAYTON, OH USA

[4] UNIV DAYTON, RES INST, DAYTON, OH 45469 USA

来源：

ACTA METALLURGICA ET MATERIALIA | 1995年 / 43卷 / 08期

关键词：

D O I：

10.1016/0956-7151(94)00436-L

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simplified experimental technique to determine the axial fiber residual strain in continuously-reinforced metal matrix composites is described. The residual fiber strains in two Ti-15V-3Cr-3Al-3Sn/SiC metal matrix composites have been measured with this technique. Residual fiber strains on the order of 0.2% are measured in the as-processed condition, and the residual stresses approach zero after testing the composite in tension to failure at room temperature. A conceptual description of the effect of tensile testing on the residual stresses is provided. The experimental results are consistent with predictions based on a concentric cylinder iso-strain analysis of thermal strains. Measurement errors result in a residual fiber strain error that is typically less than +/-0.05%. Periodic fiber bending induced by cross-weave fibers is also analyzed, and may contribute significantly to measurement errors.

引用

页码：3105 / 3112

页数：8

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