金属材料下屈服强度测量结果不确定度评定

Uncertainty Evalution on Measurement Results of Lower Yield Strength of Metallic Materials

根据GB/T 228-2002《金属材料室温拉伸试验方法》标准的要求,对牌号为G450冷轧钢板的下屈服强度进行了测试,并对其不确定度进行了评定。

According to GB/T228-2002 standard, ＂metallic materials tensile testing at ambient temperature＂, the lower yield strength of the cold rolled steel plate G450 has been tested. The uncertainty of the measurement of the lower yield strength are evaluated through a series of analysis.