杨木粉末温压成形本构方程的构建
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摘要
为探寻木质粉末在温压成形过程中的"应力-应变"关系,基于杨木废单板制备的杨木粉末的温压成形实验数据,以川北公式为模型,借助模拟退火优化算法反演模型参数,构建杨木粉末温压成形本构方程。结果表明:构建的本构方程精度较高,本构模型的模拟结果与试验结果高度重合,可作为木质粉末温压成形机理分析及失效成因理论判据。
In order to explore the "stress-strain" relationship of wood powder in the process of warm-pressing compaction, based on the experimental data for warm-pressing compaction of poplar powder obtained from waste poplar veneer, and by using the Kawakita formula as the model, the constitutive equation of the warm-pressing compaction process of poplar powder has been constructed by means of simulated annealing optimization algorithm and inversion model parameters. The results show that the accuracy of the constitutive equation was higher than the ordinary one, the simulation results of the constitutive model were highly coincided with the experimental results, so it can be used as a theoretical criterion for the mechanism analysis and failure cause analysis of wood powder warm-pressing compaction.
In order to explore the "stress-strain" relationship of wood powder in the process of warm-pressing compaction, based on the experimental data for warm-pressing compaction of poplar powder obtained from waste poplar veneer, and by using the Kawakita formula as the model, the constitutive equation of the warm-pressing compaction process of poplar powder has been constructed by means of simulated annealing optimization algorithm and inversion model parameters. The results show that the accuracy of the constitutive equation was higher than the ordinary one, the simulation results of the constitutive model were highly coincided with the experimental results, so it can be used as a theoretical criterion for the mechanism analysis and failure cause analysis of wood powder warm-pressing compaction.
引文
[1]王兵,刘光天.节能减排与中国绿色经济增长-基于全要素生产率的视角[J].中国工业经济,2015(5):57-69.
[2]戚研.习近平“三农”思想研究[D].镇江:江苏大学,2017.
[3]王梓龙.两型社会背景下湖南工业生态效率影响因素研究[D].长沙:湖南农业大学,2016.
[4]曾福生.新时期中国“三农”发展思路的再思考[J].湖南财政经济学院学报,2015,31(1):84-91.
[5]郭毓东,郝祖涛.长株潭城市群两型社会绿色物流发展水平综合评价研究[J].科技管理研究,2013,33(5):183-187.
[6]吴庆定.木质粉体温压成形原理与技术[M].长沙:湖南大学出版社,2012.
[7]董俊辉,刘克非,陈飞,等.木质粉末热模压成形致密化过程数值模拟[J].中南林业科技大学学报,2016,36(4):103-110.
[8]张红,吴庆定,彭博.C-stalk/Cu复合材料的温压成形与表征[J].中南林业科技大学学报,2014,34(8):101-105.
[9]吴庆定,易林,梁盛.响应面法优化芦苇秆粉末高压无胶成形工艺[J].中南林业科技大学学报,2012,32(1):144-149.
[10]夏余平.木质功能材料温压成形本构方程与数值模拟[D].长沙:中南林业科技大学,2017.
[11]郑哲敏.非线性连续介质力学[J].中国科学院院刊,1993(4):283-289.
[12]郑颖人,孔亮.广义塑性力学及其运用[J].中国工程科学,2005(11):25-40.
[13]郑颖人,段建立,陈瑜瑶.广义塑性力学中的屈服面与应力-应变关系[J].岩土力学,2000(3):305-308.
[14]周筑宝,卢楚芬,郑学军.对经典塑性力学增量理论的再认识[J].长沙铁道学院学报,1997(1):89-94.
[15]ROSCOE K H,SCHOFIELD A N.Mechanical behaviour of anidealised‘wet clay’[C]Proceedings of the 2nd European Conference on Soil Mechanics and Foundation Engineering.Wiesbaden,1963.
[16]ROSCOE K H,BURLAND J B.On the generalised stress-strain behaviour of wet clay[M]Engineering Plasticity.Cambridge:Cambridge University Press,1968:535-609.
[17]DUNCAN J M,CHANG C Y.Nonlinear analysis of stress and strain in soils[J].Journal of the Soil Mechanics and Foundations Division,1970,96(5):1629-1653.
[18]KAWAKITA K,LUDDE K H.Some considerations on powder compression equations[J].Powder Technology,1971,4(2):61-68.
[19]HECKEL R W.Analysis of powder compaction phenomena.Trans AIME,1961,221:1001-l008.
[20]FRENNINGG,NORDSTR?MJF,ALDERBORNG.Effective Kawakita parameters for binary mixtures[J].Powder Technology,2009,189(2):270-275.
[21]王迎.多孔隙介质参数识别的正则化模拟退火法[J].湖北大学学报(自然科学版),2015,37(1):77-82.
[2]戚研.习近平“三农”思想研究[D].镇江:江苏大学,2017.
[3]王梓龙.两型社会背景下湖南工业生态效率影响因素研究[D].长沙:湖南农业大学,2016.
[4]曾福生.新时期中国“三农”发展思路的再思考[J].湖南财政经济学院学报,2015,31(1):84-91.
[5]郭毓东,郝祖涛.长株潭城市群两型社会绿色物流发展水平综合评价研究[J].科技管理研究,2013,33(5):183-187.
[6]吴庆定.木质粉体温压成形原理与技术[M].长沙:湖南大学出版社,2012.
[7]董俊辉,刘克非,陈飞,等.木质粉末热模压成形致密化过程数值模拟[J].中南林业科技大学学报,2016,36(4):103-110.
[8]张红,吴庆定,彭博.C-stalk/Cu复合材料的温压成形与表征[J].中南林业科技大学学报,2014,34(8):101-105.
[9]吴庆定,易林,梁盛.响应面法优化芦苇秆粉末高压无胶成形工艺[J].中南林业科技大学学报,2012,32(1):144-149.
[10]夏余平.木质功能材料温压成形本构方程与数值模拟[D].长沙:中南林业科技大学,2017.
[11]郑哲敏.非线性连续介质力学[J].中国科学院院刊,1993(4):283-289.
[12]郑颖人,孔亮.广义塑性力学及其运用[J].中国工程科学,2005(11):25-40.
[13]郑颖人,段建立,陈瑜瑶.广义塑性力学中的屈服面与应力-应变关系[J].岩土力学,2000(3):305-308.
[14]周筑宝,卢楚芬,郑学军.对经典塑性力学增量理论的再认识[J].长沙铁道学院学报,1997(1):89-94.
[15]ROSCOE K H,SCHOFIELD A N.Mechanical behaviour of anidealised‘wet clay’[C]Proceedings of the 2nd European Conference on Soil Mechanics and Foundation Engineering.Wiesbaden,1963.
[16]ROSCOE K H,BURLAND J B.On the generalised stress-strain behaviour of wet clay[M]Engineering Plasticity.Cambridge:Cambridge University Press,1968:535-609.
[17]DUNCAN J M,CHANG C Y.Nonlinear analysis of stress and strain in soils[J].Journal of the Soil Mechanics and Foundations Division,1970,96(5):1629-1653.
[18]KAWAKITA K,LUDDE K H.Some considerations on powder compression equations[J].Powder Technology,1971,4(2):61-68.
[19]HECKEL R W.Analysis of powder compaction phenomena.Trans AIME,1961,221:1001-l008.
[20]FRENNINGG,NORDSTR?MJF,ALDERBORNG.Effective Kawakita parameters for binary mixtures[J].Powder Technology,2009,189(2):270-275.
[21]王迎.多孔隙介质参数识别的正则化模拟退火法[J].湖北大学学报(自然科学版),2015,37(1):77-82.