On the transformation behavior of functionally graded SMA composites subjected to thermal loading

On the transformation behavior of functionally graded SMA composites subjected to thermal loading
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热载荷作用下功能梯度 SMA 复合材料的转变行为

DOI:
10.1016/j.euromechsol.2013.01.009
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发表时间:
2013-07
影响因子:
4.1
通讯作者:
Yang, Shengyou
Yang, Shengyou
中科院分区:
工程技术2区
文献类型:
--
作者:
Liu, Bingfei;Dui, Guansuo;Yang, Shengyou

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形状记忆合金(SMA)复合材料正在不断扩大的应用范围中使用。对于新的应用,功能梯度(FG)SMA复合材料正在开发纳入各种基质。结合复合材料的平均技术和SMA本构模型的分析方法,开发确定的FG-SMA复合材料的转换性能。从这样的复合材料的分析结果表明,在转换后的SMA复合材料中的应力低于在相同的热载荷下的纯弹性复合材料的情况下。这种应力的降低可以导致SMA复合材料的耐温性和机械性能的提高。这项工作将探索通过参数研究,以了解它们对SMA复合材料设计的影响。
Shape Memory Alloy (SMA) composites are being used in an ever-expanding set of applications. For new applications, Functionally Graded (FG) SMA composites are being developed incorporating a wide variety of matrices. An analytical methodology combining averaging technique of composites and an SMA constitutive model is developed to determine the transformation properties of the FG–SMA composite. The results obtained from the analyses of such a composite show that after transformation the stress in the SMA composite is lower than in the case of pure elastic composite under the same thermal loading. This decrease in stress can result in an increase in temperature resistance and improved mechanical properties of SMA composites. This work will be explored through a parametric study to understand their influence on SMA composites design.
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