Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press,under the auspice of Depa...Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press,under the auspice of Department ofHealth, General Logistics Department of PLA,andit is issued展开更多
Aims and scope of the Journal. Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press, under the auspice of De...Aims and scope of the Journal. Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press, under the auspice of Department of Health, General Logistics Department of PLA, and it is issued domestically and abroad. Med J Chin PLA has become one of the source journals of statistics in Chinese Scientific Thesis and Chinese Scientific Quotation Database, the key periodical of multiple-subject medical journals, and is a prize journal of National Periodical Award and one of the Top Hundred Periodicals in China. Med J Chin PLA is issued monthly. Its permanent sections include Expert Forum, Research on Special Topics, Medical Treatises, Experimental Research, Clinical Research, Technology and Methodology, Discussion of Knotty Cases (Pathology), Reviews, Military Medical Sciences, News in Medicine etc. Manuscripts sent by both domestic and overseas writers are welcome. Contribution of reviews is usually invited by the Editors, but recommendations for topics and authors are welcomed.展开更多
Aims andscope of the Journal.Medical Journal of Chinese People's Liberation Army(Med J Chin PLA)is a multiple-subjects medical periodical published by the People's Military Medical Press,under the auspice of D...Aims andscope of the Journal.Medical Journal of Chinese People's Liberation Army(Med J Chin PLA)is a multiple-subjects medical periodical published by the People's Military Medical Press,under the auspice of Department of Health,General Logistics Department of PLA,and it展开更多
Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army ( Med J Chin PLA) is a multiple-subjects medical periodical publishedby the People’s Military Medical Press,under the auspice of Depa...Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army ( Med J Chin PLA) is a multiple-subjects medical periodical publishedby the People’s Military Medical Press,under the auspice of Department of Health, General Logistics Department of PLA,andit展开更多
应变-旋转(Strain-Rotation,S-R)和分解定理为分析几何非线性问题提供了合理可靠的理论基础,但用有限元求解时会遇到大变形发生后的网格畸变问题。近年提出的虚单元法(Virtual element method,VEM)适用于一般的多边形网格,因此,该文尝...应变-旋转(Strain-Rotation,S-R)和分解定理为分析几何非线性问题提供了合理可靠的理论基础,但用有限元求解时会遇到大变形发生后的网格畸变问题。近年提出的虚单元法(Virtual element method,VEM)适用于一般的多边形网格,因此,该文尝试使用一阶虚单元求解基于S-R和分解定理的二维几何非线性问题,以克服网格畸变的影响。基于重新定义的多项式位移空间基函数,推演获得一阶虚单元分析线弹性力学问题时允许位移空间向多项式位移空间的投影表达式;按照虚单元法双线性格式的计算规则,分析处理基于更新拖带坐标法和势能率原理的增量变分方程;进而建立离散系统方程及其矩阵表达形式,并编制MATLAB求解程序;采用常规多边形网格和畸变网格,应用该文算法分析均布荷载下的悬臂梁和均匀内压下的厚壁圆筒变形。结果与已有文献和ANSYS软件的对比表明:该文算法在两种网格中均可有效执行且具备足够数值精度。总体该文算法为基于S-R和分解定理的二维几何非线性问题求解提供了一种鲁棒方法。展开更多
文摘Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press,under the auspice of Department ofHealth, General Logistics Department of PLA,andit is issued
文摘Aims and scope of the Journal. Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press, under the auspice of Department of Health, General Logistics Department of PLA, and it is issued domestically and abroad. Med J Chin PLA has become one of the source journals of statistics in Chinese Scientific Thesis and Chinese Scientific Quotation Database, the key periodical of multiple-subject medical journals, and is a prize journal of National Periodical Award and one of the Top Hundred Periodicals in China. Med J Chin PLA is issued monthly. Its permanent sections include Expert Forum, Research on Special Topics, Medical Treatises, Experimental Research, Clinical Research, Technology and Methodology, Discussion of Knotty Cases (Pathology), Reviews, Military Medical Sciences, News in Medicine etc. Manuscripts sent by both domestic and overseas writers are welcome. Contribution of reviews is usually invited by the Editors, but recommendations for topics and authors are welcomed.
文摘Aims andscope of the Journal.Medical Journal of Chinese People's Liberation Army(Med J Chin PLA)is a multiple-subjects medical periodical published by the People's Military Medical Press,under the auspice of Department of Health,General Logistics Department of PLA,and it
文摘Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army ( Med J Chin PLA) is a multiple-subjects medical periodical publishedby the People’s Military Medical Press,under the auspice of Department of Health, General Logistics Department of PLA,andit
文摘应变-旋转(Strain-Rotation,S-R)和分解定理为分析几何非线性问题提供了合理可靠的理论基础,但用有限元求解时会遇到大变形发生后的网格畸变问题。近年提出的虚单元法(Virtual element method,VEM)适用于一般的多边形网格,因此,该文尝试使用一阶虚单元求解基于S-R和分解定理的二维几何非线性问题,以克服网格畸变的影响。基于重新定义的多项式位移空间基函数,推演获得一阶虚单元分析线弹性力学问题时允许位移空间向多项式位移空间的投影表达式;按照虚单元法双线性格式的计算规则,分析处理基于更新拖带坐标法和势能率原理的增量变分方程;进而建立离散系统方程及其矩阵表达形式,并编制MATLAB求解程序;采用常规多边形网格和畸变网格,应用该文算法分析均布荷载下的悬臂梁和均匀内压下的厚壁圆筒变形。结果与已有文献和ANSYS软件的对比表明:该文算法在两种网格中均可有效执行且具备足够数值精度。总体该文算法为基于S-R和分解定理的二维几何非线性问题求解提供了一种鲁棒方法。
