Application of the Incremental Hole-Drilling Method on Thick Film Systems—An Approximate Evaluation Approach

Application of the Incremental Hole-Drilling Method on Thick Film Systems—An Approximate Evaluation Approach
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渐进式钻孔方法在厚膜系统上的应用——一种近似评估方法

DOI:
10.1007/s11340-014-9962-3
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发表时间:
2015
影响因子:
2.4
通讯作者:
J. Gibmeier
J. Gibmeier
中科院分区:
工程技术3区
文献类型:
--
作者:
E. Held;J. Gibmeier

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提出了一种新的评价程序,关于增量钻孔技术的应用,以确定在厚膜系统中的深度残余应力分布。通过对每次增加深度后测得的应变弛豫进行直接校正,以考虑材料分层结构的影响,标准评估程序仍可使用,无需任何进一步修改。例如,标准化积分方法使用特定的几何校准常数,其仅对各向同性、均质和线性弹性材料有效。利用人工神经网络,对于要应用于厚层状系统中测量的应变松弛的校正函数的预测,仍然可以应用标准积分法。使用有限元(FE-)模拟所提出的方法的验证。此外,新的评估策略适用于残余应力测定在热喷涂氧化铝涂层钢(S690 QL)基板。
A new evaluation procedure is presented regarding the application of the incremental hole-drilling technique to determine in-depth residual stress distribution in thick film systems. Using a direct correction of the measured strain relaxation, obtained after each incremental depth, to take into account the effect of the layered structure of the material, the standard evaluation procedures can still be used without any further modification. For example, the standardized integral method uses specific geometrical calibration constants, which are only valid for isotropic, homogeneous and linear elastic materials. Using artificial neural networks, for the prediction of the correction function to be applied to the measured strain relaxation in thick layered systems, the standard integral method can still be applied. The validation of the proposed approach is shown using finite element (FE-) simulations. In addition, the new evaluation strategy is applied for residual stress determination in a thermally sprayed Aluminum oxide coating on a steel (S690QL) substrate.
DOI: 10.1002/mawe.19960270907
发表时间: 1996-09-01
影响因子: 1.1
作者:
Eigenmann, B;Macherauch, E
通讯作者: Macherauch, E
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