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[求助]
求助 關(guān)于螺栓蠕變不收斂的問題
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這幾天在做螺栓預(yù)緊后常溫蠕變問題。但是出現(xiàn)了蠕變不收斂的情況,我是根據(jù)百度文庫上的貼 http://wenku.baidu.com/link?url=uqh8HK2sFyq047_vzZf6O6538yVuaaPIhks7C72Y2VpB-x_EoWtp1gDH_e0kJrTimDk2pkNTsGC9a8CBNsz7zp3YVen3I1UVC9ol-XLiK_7 結(jié)合自己所迭代出的A,m,n計算的。結(jié)果出現(xiàn)了以下兩個warning我不太了解是什么意思,希望大家能給我講下,謝謝啦! 1、The total time is specified in the timehardening creep law. If the analysis includes steps in which creep is notactive, it is recommended that small step times compared to the creep time beused in these steps. This is necessary to avoid changes in hardening behaviorin subsequent steps. 2、The nlgeom flag was not active in theprevious general (non-perturbation) step. The activation of nlgeom in thecurrent step may cause convergence problems if the displacements at the end ofthe previous general step are not small. Discontinuities in displacementresponse histories should also be expected. |
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鐵蟲 (小有名氣)
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