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Comparative study of honeycomb optimization using Kriging and radial basis function
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作者 Shabram Sadeghi Esfahlani Hassan Shirvani +2 位作者 Sunny Nwaubani Ayoub Shirvani Habtom Mebrahtu 《Theoretical & Applied Mechanics Letters》 CAS 2013年第3期14-18,共5页
Structural optimization for crashworthiness criteria is of particular significance especially at early stage of design. The comparative study of Kriging and radial basis function network (RBFN) was performed in orde... Structural optimization for crashworthiness criteria is of particular significance especially at early stage of design. The comparative study of Kriging and radial basis function network (RBFN) was performed in order to improve the crashworthiness effects of honeycomb. Improving the crashworthiness characteristic of honeycomb was achieved using LS-OPT~ and domain reduction strategy. This optimization is performed on the basis of validated numerical simulation to establish the approximated model to illustrate the relationship between the responses and design variables. The results showed that Kriging meta-model is excelled in accuracy, robustness and efficiency compared to radial basis function (RBF) and crashworthiness characteristic of honeycomb is improved by 4%. 展开更多
关键词 radial basis function network (RBFN) KRIGING CRASHWORTHINESS optimization algorithm
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00Cr17Ni14Mo2不锈钢高温力学性能 被引量:5
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作者 王新堂 张金一 DU Yingang 《建筑材料学报》 EI CAS CSCD 北大核心 2015年第5期767-772,共6页
利用高温炉对00Cr17Ni14Mo2不锈钢开展了一系列高温下的稳态拉伸试验、瞬态拉伸试验和蠕变试验,测得了不锈钢在不同高温温度下的弹性模量、屈服强度、极限强度、极限应变、伸长率和蠕变应变.利用MATLAB软件对00Cr17Ni14Mo2不锈钢各力学... 利用高温炉对00Cr17Ni14Mo2不锈钢开展了一系列高温下的稳态拉伸试验、瞬态拉伸试验和蠕变试验,测得了不锈钢在不同高温温度下的弹性模量、屈服强度、极限强度、极限应变、伸长率和蠕变应变.利用MATLAB软件对00Cr17Ni14Mo2不锈钢各力学性能(弹性模量、屈服强度、极限强度、极限应变、伸长率)与温度关系曲线和蠕变曲线进行了拟合.结果表明:当应力水平为0.2fu(fu为不锈钢常温极限强度)时,00Cr17Ni14Mo2不锈钢在较高温度(600℃)下的短期蠕变应变相当明显,在钢结构抗火计算时应考虑短期蠕变应变对钢结构响应的影响.所建立的00Cr17Ni14Mo2不锈钢各力学性能与温度关系方程均能较好地拟合试验结果. 展开更多
关键词 00Cr17Ni14Mo2不锈钢 高温力学性能 试验 拟合
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