An approach for stress analysis of corrugated-core integrated thermal protection system under thermal and mechanical environment
An approach for stress analysis of corrugated-core integrated thermal protection system under thermal and mechanical environment
复制标题
热机械环境下波纹芯集成热防护系统的应力分析方法
DOI：
10.1016/j.compstruct.2017.10.078
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发表时间：
2018-02
影响因子：
6.3
通讯作者：
Shengbo Shi
中科院分区：
文献类型：
--
作者：
Chunlin Gong;Yifan Wang;Liangxian Gu;Shengbo Shi
采用我们先前研究中引入的等效夹层模型（Gu等人，2017年）。基于高阶分层理论和结构力学原理，提出了一种考虑材料性质和曲率随温度变化影响的板料应力预测方法。对于ITPS顶面板，在应力预测中考虑了面外压力引起的局部位移。对于ITPS结构的下面板，将其视为具有适当位移协调性的梁，考虑了波纹腹板引起的局部位移。通过与三维有限元分析结果的比较，验证了该方法的准确性。研究表明，该方法所需的计算量显着减少，并且与有限元结果吻合良好。
The stress distributions in trapezoidal corrugated-core integrated thermal protection system (ITPS) under thermal and mechanical loads are predicted by employing the equivalent sandwich model introduced in our previous study (Gu et al., 2017). The method for prediction of stress based on high-order layerwise theory and the principle of structural mechanics is presented, which considers the effects of temperature-dependent material properties and curvature in sheets. For the top face sheet of ITPS, the local displacement induced by out-of-plane pressure is taken into account in the prediction of stress. And for the bottom face sheet of ITPS, the local displacement induced by corrugated webs is also considered by treating the sheet as beams with proper displacement compatibility. The accuracy of the proposed method is verified by comparison with the results by three-dimensional (3D) finite element analysis. It has been shown that the proposed method requires significantly less computational effort and agrees well with the finite element results.
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影响因子：
--
作者：
J. Lewiński;E. Magnucka-Blandzi;Wacław Szyc-
通讯作者：
J. Lewiński;E. Magnucka-Blandzi;Wacław Szyc-
影响因子：
4.7
作者：
D. Briassoulis
通讯作者：
D. Briassoulis
影响因子：
2.5
作者：
Martinez, Oscar A.;Sankar, Bhavani V.;Blosser, Max L.
通讯作者：
Blosser, Max L.
影响因子：
6.3
作者：
Shashank Pandey;S. Pradyumna
通讯作者：
Shashank Pandey;S. Pradyumna
DOI：
10.1080/08905459508905246
发表时间：
1995
期刊：
Mechanics of Structures and Machines
影响因子：
--
作者：
R. A. Shimansky;M. Lele
通讯作者：
R. A. Shimansky;M. Lele