Smooth spline-like finite-element differentiation of full-field experimental data over arbitrary geometry
Smooth spline-like finite-element differentiation of full-field experimental data over arbitrary geometry
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DOI：
10.1007/bf02326046
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发表时间：
1979-12
影响因子：
2.4
通讯作者：
D. Segalman;D. Woyak;R. Rowlands
中科院分区：
文献类型：
--
作者：
D. Segalman;D. Woyak;R. Rowlands
本文提出了一种新的光滑二维数值方法来表示和区分离散的全场实验信息。该方法涉及最小化正定功能使用有限元“最佳拟合”的数据。实验数据点可以出现在任何配置，边界导数不需要指定，任意形状的区域可以很容易地处理。通过光测应变分析证明了该方法。
A new smooth two-dimensional numerical method is presented for representing and differentiating discrete fullfield experimental information. The method involves minimizing a positive definite functional by use of finite-elements to ‘best-fit’ the data. Experimental data points may occur in any configuration, boundary derivatives need not be specified, and arbitrarily shaped regions can be handled readily. The method is demonstrated by photomechanical strain analysis.