Correlation between matrix residual stress and composite yield strength in PM 6061Al?15vol% SiC

Correlation between the Weld Residual Stresses and its Tensile and Impact Strength

In this study, the tensile strength, impact strength, and the hardness of the weld are determined. A criterion is proposed for describing the effect of residual stress on the weld mechanical properties. Dimensionless parameters such as Rya (the average of residual stress over the material yield strength), Rym (the maximum residual stress over the material yield strength), ...

In situ imaging and strain determination during fracture in a SiC/SiC ceramic matrix composite

In situ imaging and strain determination during fracture in a SiC/SiC ceramic matrix composite J. Ramirez-Rico,a,b,⇑ F. Stolzenburg, J.D. Almer, J.L. Routbort, D. Singh and K.T. Faber Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA Dpto. Fı́sica de la Materia Condensada – ICMS, Universidad de Sevilla – CSIC, 41012 Sevilla, Spain Argonne National ...

Fatigue Damage and Lifetime of SiC/SiC Ceramic-Matrix Composite under Cyclic Loading at Elevated Temperatures

In this paper, the fatigue damage and lifetime of 2D SiC/SiC ceramic-matrix composites (CMCs) under cyclic fatigue loading at 750, 1000, 1100, 1200 and 1300 °C in air and in steam atmosphere have been investigated. The damage evolution versus applied cycles of 2D SiC/SiC composites were analyzed using fatigue hysteresis dissipated energy, fatigue hysteresis modulus, fatigue peak strain and inte...

Damage tolerance and residual strength of composite sandwich structures

Layup Configuration Effect on Notch Residual Strength in Composite Laminates

The current trend shows an increasing demand for composites due to their high stiffness to weight ratio and the recent progress in manufacturing and cost reduction of composites. To combine high strength and stiffness in a cost-effective way, composites are often joined with steel or aluminum. However, joining of thermoset composite materials is challenging because circular holes are often used...