【摘要】 采用统一强度理论对受线形荷载作用下的简支圆板进行了塑性极限分析,得出了相应的统一解形式。已有的Tresca准则、Mises准则、双剪应力准则以及双剪统一屈服准则的解答是文中解答的特例或逼近。统一解以适用于不同性状的拉压异性材料。从得出的解析解和图示表明,正确认识材料强度并合理运用屈服准则对发挥材料的潜能具有重要意义。更多还原

【Abstract】 Based on the unified strength theory, the unified solution for plastic limit load of simply supported circular plates under linear distributed load is obtained. The solutions of Tresca Criterion, Mises Criterion, Twin-shear Stress Criterion and Unified Yield Criterion are special cases or approximation of the results of the unified solution. This solution is suitable for most materials with different strength in tension and in compression. From the deduced analytic solutions and illustrations, there are show that, accurately to understanding the strength of material and reasonably to apply yield criterion are the great importance to bring the potential of material into full play.更多还原