40CrNi2Si2MoVA钢机械加工与喷丸试样旋转弯曲疲劳寿命的预测方法
TG111.7%TG668; 为了预测机械加工及喷丸强化后40CrNi2Si2MoVA钢试样在室温下的旋转弯曲疲劳寿命,结合商用有限元软件ABAQUS和疲劳寿命分析软件FE-SAFE对不同数值计算方法的适用性及准确性进行比较,提出了喷丸强化40CrNi2Si2MoVA钢的寿命预测经验公式.结果表明:对于机械加工试样,选择"Brown-Miller"算法和表面残余应力用于计算可获得比较准确的预测结果;对于喷丸强化试样,高应力水平下也可选用"Brown-Miller"算法及表面残余应力,而低应力水平下则应改用"Stress-based Brown...
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Published in | 航空材料学报 Vol. 40; no. 1; pp. 87 - 92 |
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Main Authors | , , |
Format | Journal Article |
Language | Chinese |
Published |
中国商用飞机有限责任公司上海飞机设计研究院,上海,200232%同济大学航空航天与力学学院,上海,200092
01.02.2020
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Subjects | |
Online Access | Get full text |
ISSN | 1005-5053 |
DOI | 10.11868/j.issn.1005-5053.2019.000033 |
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Abstract | TG111.7%TG668; 为了预测机械加工及喷丸强化后40CrNi2Si2MoVA钢试样在室温下的旋转弯曲疲劳寿命,结合商用有限元软件ABAQUS和疲劳寿命分析软件FE-SAFE对不同数值计算方法的适用性及准确性进行比较,提出了喷丸强化40CrNi2Si2MoVA钢的寿命预测经验公式.结果表明:对于机械加工试样,选择"Brown-Miller"算法和表面残余应力用于计算可获得比较准确的预测结果;对于喷丸强化试样,高应力水平下也可选用"Brown-Miller"算法及表面残余应力,而低应力水平下则应改用"Stress-based Brown Miller"算法及最大残余应力.基于上述两种方法提出的经验公式:σmax=-64.378?lg N+1449.268,可改善40CrNi2Si2MoVA钢喷丸强化试样疲劳寿命预测的准确性. |
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AbstractList | TG111.7%TG668; 为了预测机械加工及喷丸强化后40CrNi2Si2MoVA钢试样在室温下的旋转弯曲疲劳寿命,结合商用有限元软件ABAQUS和疲劳寿命分析软件FE-SAFE对不同数值计算方法的适用性及准确性进行比较,提出了喷丸强化40CrNi2Si2MoVA钢的寿命预测经验公式.结果表明:对于机械加工试样,选择"Brown-Miller"算法和表面残余应力用于计算可获得比较准确的预测结果;对于喷丸强化试样,高应力水平下也可选用"Brown-Miller"算法及表面残余应力,而低应力水平下则应改用"Stress-based Brown Miller"算法及最大残余应力.基于上述两种方法提出的经验公式:σmax=-64.378?lg N+1449.268,可改善40CrNi2Si2MoVA钢喷丸强化试样疲劳寿命预测的准确性. |
Author | 高玉魁 徐明波 柳鸿飞 |
AuthorAffiliation | 中国商用飞机有限责任公司上海飞机设计研究院,上海,200232%同济大学航空航天与力学学院,上海,200092 |
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Author_FL | XU Mingbo GAO Yukui LIU Hongfei |
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DocumentTitle_FL | Prediction method of rotating-bending fatigue life of 40CrNi2Si2MoVA steel specimens after machining and shot peening |
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Keywords | FE-SAFE 40CrNi2Si2MoVA钢 疲劳寿命预测 喷丸强化 |
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Title | 40CrNi2Si2MoVA钢机械加工与喷丸试样旋转弯曲疲劳寿命的预测方法 |
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