Modeling of fatigue crack growth under high-low sequence loading

机译：高低序列载荷下疲劳裂纹扩展的建模

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

The fatigue crack growth behavior of one compact tension specimen of 16MnR steel under high-low sequence loading was investigated. The symmetric half finite element model under plane-stress state was used to calculate the elastic-plastic stress-strain responses, in which the Armstrong-Frederick type cyclic plasticity model was implemented as a user material subroutine UMAT of ABAQUS. A recently developed dynamic crack growth model was used to simulate the effects of high loading step on the successive low loading step. The detailed evolution process of the crack closure and cyclic plastic zone within the retardation region of fatigue crack growth was obtained. The extend of the crack closure, the size of cyclic plastic zone and the stress gradient have significant influence on the fatigue crack growth rate. The predicted fatigue crack growth rate is in good agreement with the experimental data.

机译：研究了16MnR钢的一个紧凑拉伸试样在高-低序载荷下的疲劳裂纹扩展行为。使用平面应力状态下的对称半有限元模型来计算弹塑性应力-应变响应，其中将Armstrong-Frederick型循环可塑性模型实现为ABAQUS的用户材料子例程UMAT。最近开发的动态裂纹扩展模型用于模拟高负荷步骤对连续低负荷步骤的影响。获得了疲劳裂纹扩展延迟区内裂纹闭合和循环塑性区的详细演化过程。裂纹闭合的扩展，循环塑性区的大小和应力梯度对疲劳裂纹的扩展速率有重要影响。预测的疲劳裂纹扩展速率与实验数据吻合良好。

著录项

来源
《Industrial design and mechanical power》|2012年|65-68|共4页
会议地点 Huangshan(CN)
作者
Zhiwei Yao; Baoxiang Qiu; Xiaogui Wang;
展开▼
作者单位

College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;

technical Research Center, Wanxiang Group Corporation, Hangzhou 311215, China;

College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类工程设计与测绘;
关键词
Loading sequence; Cyclic plasticity; Crack growth rate; Crack closure;

机译：加载顺序；循环可塑性；裂纹增长率；裂纹闭合;

相似文献

外文文献
中文文献
专利

1. Effect of Overload on the Near-Threshold Fatigue Crack Growth Rate in a 2024-T3 Aluminum Alloy: III. Analysis of the Efficiency of the Fatigue Crack Growth Models Used to Predict the Fatigue Life under Alternating Loading [J] . Russian Metallurgy(Metally) . 2020,第3期

机译：超负荷对2024-T3铝合金近阈值疲劳裂纹生长速率的影响：III。交替载荷下，用于预测疲劳寿命的疲劳裂纹增长模型的效率分析
2. Fatigue crack growth model including load sequence effects - Model development and calibration for railway axle steels [J] . J. Maierhofer, H.-P. Gaenser, D. Simunek, International Journal of Fatigue . 2020,第Mara期

机译：疲劳裂纹扩展模型，包括载荷序列效应-铁路车轴钢的模型开发和校准
3. Analysis of fatigue crack growth under spectrum loading - The UniGrow fatigue crack growth model [J] . Mikheevskiy S., Bogdanov S., Glinka G. Theoretical and Applied Fracture Mechanics . 2015,第Null期

机译：频谱载荷下的疲劳裂纹扩展分析-UniGrow疲劳裂纹扩展模型
4. Modeling of fatigue crack growth under high-low sequence loading [C] . Zhiwei Yao, Baoxiang Qiu, Xiaogui Wang International conference on industrial design and mechanical power . 2012

机译：高低序列载荷下疲劳裂纹增长的建模
5. The effect of fatigue cracks on fastener flexibility, load distribution, and fatigue crack growth. [D] . Whitman, Zachary Layne. 2012

机译：疲劳裂纹对紧固件柔韧性，载荷分布和疲劳裂纹扩展的影响。
6. Computational modeling of fatigue crack propagation in butt welded joints subjected to axial load [O] . Oscar Araque, Nelson Arzola, Omar Varón -1

机译：轴向载荷作用下对接焊缝疲劳裂纹扩展的计算模型
7. Fatigue crack growth and crack closure under variable loadings on aluminum alloys. (Effect of load variation on characteristic form of crack growth rate curve in region II) [O] . Masahiro JONO, Jiho SONG, Atsushi SUGETA 1985

机译：铝合金可变载荷下疲劳裂纹生长和裂纹闭合。（载荷变异对4区裂纹生长速率曲线特征形式的影响）
8. Diffusion Models of Fatigue Crack Growth with Sequence Effects Due to Stationary Random Loading [R] . Veers, P. S. , Winterstein, S. R. 1989

机译：平稳随机载荷序列效应下疲劳裂纹扩展扩散模型

Modeling of fatigue crack growth under high-low sequence loading

摘要

著录项

相似文献

相关主题

期刊订阅