Investigation on the creep-age forming of an integrally-stiffened AA2219 alloy plate: experiment and modeling
Investigation on the creep-age forming of an integrally-stiffened AA2219 alloy plate: experiment and modeling
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整体强化 AA2219 合金板的蠕变时效成形研究：实验和建模
DOI：
10.1007/s00170-017-1248-3
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发表时间：
2017-11
影响因子：
3.4
通讯作者：
Ma Z
中科院分区：
文献类型：
--
作者：
Yang Y;Zhan L;Ma Z
蠕变时效成形（CAF）是一种相对较新的板料成形方法，用于制造具有精确形状和期望性能的大型构件。本文对AA 2219合金整体加筋板在CAF成形过程中的应变分布、回弹特性、力学性能和形状质量进行了全面的研究。建立了一套考虑预变形影响的蠕变-时效统一本构方程，并通过拉伸蠕变-时效模拟验证了其在有限元求解器MSC.Marc中的有效性。对加筋板进行了CAF模拟。结果表明，塑性变形和蠕变变形共同决定了板的最终形状，其中蠕变变形起主要作用，其贡献率分别为33%和67%。通过与试验结果的比较，回弹误差约为11%，屈服强度误差约为3.2%，验证了CAF模型的正确性。此外，与加劲肋上的屈服强度相比，蒙皮上的屈服强度分布更均匀。此外，成形板的母线线性度值很小，这表明CAF成形整体加筋板具有高精度的形状质量。
Creep-age forming (CAF) is a relatively new sheet metal forming method for manufacturing large-scale components with accurate shape and desired performance. This paper fully investigates the strain distribution, springback characteristic, mechanical property, and shape quality of an integrally-stiffened AA2219 alloy plate during CAF process. A new set of unified creep-ageing constitutive equations incorporating the effect of pre-deformation is developed, and its effectiveness in FE solver MSC.Marc is validated by tension creep-ageing simulation. CAF simulation of the stiffened plate is conducted. The results indicate that the final shape of the plate is simultaneously determined by plastic and creep deformations, while the creep deformation plays a major role, with corresponding contribution percentage of 33 and 67%. Comparisons between experiment and modelling show that the deviations are approximately 11% for springback and 3.2% for yield strength, which confirms the validity of CAF modelling. Furthermore, yield strengths on the skin of the plate are more evenly distributed as compared with those on the stiffeners. In addition, the values of generatrix linearity of the formed plate are very small, which demonstrates that the CAF-formed integrally-stiffened plate has high-precision shape quality.
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影响因子：
5.6
作者：
Mohammad Ershadi Khamneh;M. Askari-Paykani;H. Shahverdi;S. Hadavi;M. Emami
通讯作者：
Mohammad Ershadi Khamneh;M. Askari-Paykani;H. Shahverdi;S. Hadavi;M. Emami
DOI：
10.1016/j.msea.2016.01.074
发表时间：
2016-03
影响因子：
6.4
作者：
Yong Li;Z. Shi;Jianguo Lin;Yo-Lun Yang;B. Huang;Tsai-Fu Chung;J. R. Yang
通讯作者：
Yong Li;Z. Shi;Jianguo Lin;Yo-Lun Yang;B. Huang;Tsai-Fu Chung;J. R. Yang
DOI：
10.1007/s00170-015-6982-9
发表时间：
2015-03
期刊：
The International Journal of Advanced Manufacturing Technology
影响因子：
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作者：
A. Lam;Z. Shi;Jianguo Lin;Xia Huang;Yuan-song Zeng;T. Dean
通讯作者：
A. Lam;Z. Shi;Jianguo Lin;Xia Huang;Yuan-song Zeng;T. Dean
DOI：
10.1016/s0921-5093(02)00398-2
发表时间：
2003-03-15
影响因子：
6.4
作者：
Liu, G;Zhang, GJ;Chen, KH
通讯作者：
Chen, KH
影响因子：
6.3
作者：
M. Sallah;J. Peddieson;S. Foroudastan
通讯作者：
M. Sallah;J. Peddieson;S. Foroudastan