The study of strength distribution of porcelain materials for electrical equipment

The porcelain material used in electrical equipment is characterized by low strength and high brittleness, which are crucial factors in ensuring the safety of the equipment when subjected to stress. To enhance the mechanical properties of high-strength porcelain materials, a theoretical analysis was conducted on the strength failure characteristics of this brittle material. Through this analysis, it was determined that the strength of porcelain materials follows the Weibull distribution and size effect formula. Subsequently, bending strength tests were performed on porcelain rods and sleeves to derive the size effect formula for the bending stress of porcelain materials.