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- The forming limit of 3A21 Aluminum alloy sheet was tested and the forming limit diagram (FLD) was determined. 通过标准成形极限实验获得3A21铝合金板材的成形极限图(FLD)；
- Forming Limit curves(FLCS) are constructed by two different kinds of shrinking methods in the paper. 用两种不同的双拉成形技术获取成形极限曲线。
- Then,it was dissertated that the essentiality and applied outlook of the stress-based forming limit diagram(FLSD). 介绍了基于应力的成形极限判据(成形极限应力图)的应用前景;
- Then this paper pointed out that DFC could predict the forming limit of metal sheet with low plasticity well and meantime take the change of forming path into account. 指出利用韧性断裂准则，不但能够较好地预测塑性差的板料成形极限，而且还能考虑应变路径的变化。
- Comparison with experimental values shows that the present approach can predict the forming limit in bulging over a wide range of sheet metals. 与实验结果比较表明，该方法能在较宽的材料范围内预测胀形成形极限。
- To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation. 摘要为了准确地预测板料成形极限，将韧性断裂准则引入到有限元模拟中。
- It puts forward calculation theory of forming limit of monolayer tube and multiplayer tube bulge, and fetches calculation formulae of forming limit. 本文采用成形极限理论和失稳理论对单层管及双层、三层复合管胀形成形的成形极限进行了理论研究，提出了单层管与复合管胀形破裂成形极限的计算理论，推导了极限应变及极限胀形系数的计算公式。
- The mandrel(including flexible balls) is the key to improving the forming limit and forming precision in thin-walled tube NC bending process. 薄壁管数控弯曲中带芯头的柔性芯模是提高薄壁管件成形极限和成形精度的关键因素。
- Plastic unstability induced by localized necking in sheet metal forming process and forming limit analysis are reviewed. 简要地评述了金属薄板成型工艺中局部化颈缩引起的塑性失稳机制和成型极限分析的成果;
- The mechanical properties and forming limit diagram(FLD) are measured and the microstructure of different rolling state is analysed. 测定了该钢的力学性能和成形极限图(FLD),分析了不同轧态的微观组织。
- Appropriate blank shape can eliminate unevenness of blank deformation, improve forming limit, reduce high of earing and volume of cutting. 如果板料形状合适,不仅变形沿板料分布不均匀的现象能够得到明显改善,而且成形极限也可有所提高,并能降低突耳高度,减少切边余量。
- The practice of tube bulge shows that the choice of loading route and forming limit of tube is important to the shape and quality of produce. 胀形生产实践表明，加载路径的选择和管坯的成形极限对管件成形及成形质量有着重要影响。
- Some applications of plastic unstability criteria on forming limit analysis and related computer simulations are discussed. 讨论了多种塑性失稳判据在成型极限分析的实验和有限元模拟两方面的应用及其局限性;
- In this paper, with the help of theory of forming limit and plasticity failure, the forming limit of a thin claded tube in bulge forming is analyzed. 采用成形极限理论及塑性失稳理论,将单层管胀形成形极限理论推广到复合管,对复合管胀形成形极限进行了分析。
- The simulation result compares well with the experimental result The FLSD is able to predict the forming limit of tube hydroforming with remarkable accuracy. 模拟结果与物理实验结果相吻合，证明FLSD可作为管材内高压成形等复杂应变路径下成形极限的判据。
- Zhou, Y. and K.W.Neale,“Prediction of Forming Limit Diagrams Using a Rate-sensitive Crystal Plasticity Model”, Int.J.Mech.Sci., Vol.37, pp.1-20, 1995. 庄伟伦，“应用有限元素法于板金成形极限之模拟分析”，硕士论文，成功大学机械工程研究所，1990年。
- The forming limits in non-axisymmetric square-cup deep drawing of aluminum alloy LF21, LY21(M) and steel st17 are predicted by means of the ductile fracture criterion (DFC) advanced by the author. 利用作者提出的韧性断裂准则预测了铝合金板LF21;LY21(M)和钢板st17非轴对称的方盒件拉深成形极限;并与成形极限图的预测结果和实验结果进行比较.
- The paint is sold in powdered form. 该油漆以粉制品形式出售。
- Most synthetic detergents are in the form of powder or liquid. 大多数合成洗涤剂呈粉状或液态。
- The ginpole is the simplest form of derrick. 起重吊杆是一种最简单的起重机。
