| 长管拖车气瓶用4130X钢的应变疲劳特性及寿命预测 |
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| 引用本文： | 王淞,赵建平.长管拖车气瓶用4130X钢的应变疲劳特性及寿命预测[J].压力容器,2020(3):9-14. |
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| 作者姓名： | 王淞 赵建平 |
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| 作者单位： | 南京工业大学机械与动力工程学院;江苏省极端承压装备设计与制造重点实验室 |
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| 基金项目： | 国家重点研发计划项目“典型移动式承压类特种设备动态风险监管关键技术研究”(2017YFC0805605)。 |
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| 摘 要： | 研究了长管拖车钢制无缝气瓶用材料4130X在4种不同应变幅控制下的低周应变-疲劳特性,分别对其循环应力-应变关系、应力-应变迟滞回线及疲劳寿命预测等进行研究,着重分析4130X钢的疲劳循环软化行为,提出了考虑循环软化作用的疲劳寿命预测修正模型。
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| 关 键 词： | 长管拖车气瓶 4130X 应变疲劳 循环软化 寿命预测 |
Strain Fatigue Characteristics and Life Prediction of Steel 4130X for Tube Trailer Gas Cylinder |
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| Wang Song,Zhao Jianping.Strain Fatigue Characteristics and Life Prediction of Steel 4130X for Tube Trailer Gas Cylinder[J].Pressure Vessel Technology,2020(3):9-14. |
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| Authors: | Wang Song Zhao Jianping |
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| Affiliation: | (School of Mechanical and Power Engineering,Nanjing Tech University,Nanjing 211816,China;Key Lab of Design and Manufacture of Extreme Pressure,Jiangsu Province,Nanjing 211816,China) |
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| Abstract: | The low cycle strain-fatigue characteristics of gas cylinder steel 4130X for tube trailer were studied under four different strain amplitudes.The cyclic stress-strain relationship,stress-strain hysteresis loop and fatigue life prediction were studied.The fatigue cyclic softening behavior of 4130X steel was analyzed.Based on the above characteristics,a suitable constitutive model for fatigue life prediction was proposed for cyclic softening material. |
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| Keywords: | tube trailer cylinder 4130X strain fatigue cyclic softening behavior life prediction model |
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