轻量化三七移栽机车架有限元分析及拓扑优化设计
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表1 45Mn碳素钢材料参数
Table 1 Material parameters of 45Mn carbon steel
材料参数数值
拉伸强度/MPa600
屈服强度/MPa355
弹性模量/MPa2.1×105
泊松比0.269
密度/(kg·m-37.85×103