Effect of Temperature on Tensile, Compressive, and Shear Strengths of Composites

Abstract

The paper is concerned with the prediction of longitudinal and transverse tensile and compressive strengths as well as the in-plane shear strength of a fiber-reinforced composite material subject to an elevated temperature. Additionally, the effect of temperature on the tensile strength of particulate composites is considered. The premise is that since the longitudinal compressive, transverse and shear strengths of uniaxial laminae are affected by the matrix to a larger degree than the longitudinal tensile strength and the matrix degradation due to an elevated temperature precedes that of the fibers, the former strengths degradation will be more pronounced than the reduction of the longitudinal tensile strength. This assumption is verified on the example of a SiC/Ti-6Al-4V composite. It is demonstrated that a difference in the effect of temperature on the rate of reduction of the longitudinal tensile strength versus the reduction of longitudinal compressive strength, transverse and shear strengths remains limited at moderate temperatures but increases as temperature approaches the matrix melting value. Considering particulate composites, we analyze both Ti-6Al-4V and polymeric matrix materials. The strength of particulate materials considered in the paper at elevated temperatures is mostly dictated by the strength of the matrix that is highly sensitive to thermal environments.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Composite lamina; composite materials; particulate composites; strength; temperature effects

International Standard Serial Number (ISSN)

1521-074X; 0149-5739

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Taylor and Francis Group; Taylor and Francis, All rights reserved.

Publication Date

01 Jan 2025

Link to Full Text

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