| 窄条激光喷丸成形有限元分析 |
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| 引用本文： | 张兴权,张永康,周建忠,顾永玉. 窄条激光喷丸成形有限元分析[J]. 航空学报, 2009, 30(4): 744-750 |
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| 作者姓名： | 张兴权 张永康 周建忠 顾永玉 |
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| 作者单位： | 安徽工业大学,机械工程学院,安徽,马鞍山,243002;江苏大学,机械工程学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金(50475127,50275068);;安徽省自然科学基金(090413012) |
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| 摘 要： | 基于激光喷丸成形过程中材料非线性、高应变率的特点,建立了适合于激光喷丸成形模型。采用ABAQUS/Explicit模块对材料和应力波相互作用的瞬态过程进行模拟,用ABAQUS/Standard 中模拟应力波作用后材料的松弛。对有限元模拟中的关键技术,如材料模型,冲击波的压力载荷、网格划分及其单元类型进行了探讨。并对航空铝合金LY12CZ的激光窄条喷丸成形进行了有限元模拟,对板料的变形量、应力的大小进行了预测,预测的结果和试验较为一致。
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| 关 键 词： | 激光喷丸 应力波 有限元分析 显式算法 隐式算法 变形量 残余应力 |
| 收稿时间： | 2007-12-21 |
| 修稿时间： | 2008-08-03 |
Finite Element Analysis of Narrow Strip Laser Peening Forming |
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| Zhang Xingquan,Zhang Yongkang,Zhou Jianzhong,Gu Yongyu. Finite Element Analysis of Narrow Strip Laser Peening Forming[J]. Acta Aeronautica et Astronautica Sinica, 2009, 30(4): 744-750 |
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| Authors: | Zhang Xingquan Zhang Yongkang Zhou Jianzhong Gu Yongyu |
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| Affiliation: | 1School of Mechanical Engineering, Anhui University of Technology 2School of Mechanical Engineering, Jiangsu University |
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| Abstract: | Laser peening forming is a novel technology which employs stress waves induced by laser to form a plate. This technology is characterized by high speed, short duration, high strain rate, and non-linearity of deformation of materials. This article explicit dynamic analysis is implemented for shock wave-solid interaction, and implicit analysis for relaxation of pressured materials. A model is developed for numerical solution, and some key issues in finite element simulation, such as material model, pressure l... |
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| Keywords: | laser peening stress wave finite element analysis explicit algorithm implicit algorithm deformation magnitude residual stresses |
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