关于长大货物车用材料许用应力取值问题的探讨

Discussion of Values Selection of Permissible Stresses of Materials for Heavy Duty Freight Cars

目前国内尚无长大货物车许用应力选取的专门标准 ,文章根据国外货车的强度标准、技术条件和国内大车的运用状况 ,提出了许用应力和安全系数选取的建议 。

At present,there is no special standard for selection of permissible stresses for heavy duty freight cars in our country.In this paper,on the basis of the strength standards,technical specifications abroad and operation of heavy duty freight cars in our country,the suggestion to select the permissible stresses and safety factor is given.It is beneficial to the lightening and safe operation of the heavy duty freight cars.