基于多尺度廣義自洽模型對耐火材料損傷過程的模擬

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基金項目:

湖北省耐火材料與高溫陶瓷重點實驗室——省部共建國家重點實驗室培育基地開放基金資助項目(No.G201008)

湖北省教育廳重點項目(No.D20091105)

國家自然科學基金面上項目(No.51075310)

Simulation of the damage of refractory materials based on a multi-scale generalized self-consistent model

1. Hubei Province Key Lab of Machine Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;
2. Hubei Province Key Lab of Ceramics and Refractories, Wuhan University of Science and Technology, Wuhan 430081, China

摘要: 基于材料在受拉和受壓狀態下損傷機理不同的假設,在恒溫條件下,以細觀力學以及多尺度廣義自洽模型為手段,分別對耐火材料在兩種受載狀態下的損傷過程進行了研究,提出了一種模擬耐火材料在承受拉壓載荷下非線性損傷行為的方法.以鎂碳質耐火材料為例,分別對材料在受到拉力和受到壓力過程的損傷進行了模擬.結果表明,運用此方法對耐火材料的非線性力學行為進行模擬與試驗結果能夠較好的吻合.
- 耐火材料 /
- 損傷 /
- 模擬 /
- 細觀力學 /
- 界面
Abstract: Based on the assumption that the damage mechanisms of materials under tension and compression are different,the nonlinear damaging behavior of refractory materials was studied by micro-mechanics and a multi-scale generalized self consistent scheme(GSCS) model at constant temperature.A method of simulating the nonlinear damage behavior of refractory materials under loading was put forward.By utilizing this technique,the damage of magnesium carbon refractory was simulated under tension and compression.The results of simulation are in agreement with experimental data.
- refractory materials /
- damage /
- simulation /
- micromechanics /
- interfaces