混凝土的拉伸破坏机理比较复杂，尚无合适或简便的力学模型和研究方法。
The mechanism of tensile failure of concrete is rather complex, so there are no suitable or convenient mechanics models and research methods.
本文介绍纺织结构复合材料在剪切、压缩、拉伸和弯曲情况下的破坏机理，分析其特点和存在的问题，提出了发展趋向。
This paper describes the failure mechanisms based on shear, compression, tension and flexure, analyzes characteristics and problems of those models and then discusses the future trend.
本文结果为进一步研究正交叠层复合材料的细观破坏机理、最终拉伸强度及协同效应等提供了重要的理论依据。
The present results may provide an important theoretical basis for further studying the micro-failure mechanism, ultimate strength and synergistic effect for cross-ply laminates under tension.
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