Measurement of Variation in Fracture Strength and Calculation of Stress Concentration Factor in Composite Laminates with Circular Hole

Journal of Solid Mechanics

مقاله 1، دوره 4، شماره 3، آذر 2012، صفحه 226-236   

نوع مقاله: Research Paper

نویسندگان

A.R Ghasemi^* ؛ I Razavian

Department of Mechanical Engineering, University of Kashan

چکیده

In this research, residual strength and stress concentration factor of laminated composites with a circular open hole are studied analytically, numerically and experimentally. The numerical study was carried out using the finite element method. Moreover an analytical study was carried out with developing of point stress criterion. Mechanical testing was performed to determine the un-notched tensile properties and notched strength of composite laminates and characteristic length to reinforcement of the notched strength of composite laminates are determined. Results show that the influence of specimen dimension, notch size, lay ups and material properties are important on residual strength and stress concentration factor of laminated composite materials.

کلیدواژه‌ها

Residual strength؛ Composite laminates؛ Characteristic length؛ Point stress؛ Stress concentration

مراجع

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