(東北大學(xué) 軋制技術(shù)及連軋自動化國家重點實驗室, 沈陽 110004)
摘 要: 為保證大變形彈塑性分析的穩(wěn)定性，采用隨材料變形的拉格朗日物質(zhì)形函數(shù)分析了整個切分軋制過程。在整個變形過程中，物質(zhì)核函數(shù)的影響域包含相同的節(jié)點數(shù)，通過坐標(biāo)轉(zhuǎn)換方法滿足本質(zhì)邊界條件。求解了切分軋制極端變形過程，研究了不同切分楔夾角和軋件寬度對切分后軋件彎曲度的影響，數(shù)值模擬結(jié)果與實驗數(shù)據(jù)吻合良好。
關(guān)鍵字: 切分軋制； 無網(wǎng)格法； 彈塑性； 大變形
（ The State Key Laboratory of Rolling and Automation,
Northeastern University, Shenyang 110004, China）
Abstract: In order to assure the stability of the large deformation elastoplastic analysis, the Lagrangre material shape function deformed with material was used to analyze the splitting rolling process. And during the whole deformation process, the domain of the material kernel function includes similar nodes number. The transformation method is utilized to satisfy the essential boundary conditions. The splitting rolling is simulated, and the effects of different wedge angular and slab width on the split workpiece camber were studied. The simulation results accord well with the experiment ones in the literature.
Key words: splitting rolling; reproducing kernel particle method; elastioplastic; large deformation
