Multi-fidelity progressive damage simulation of notched composite laminates with various ply thicknesses
Multi-fidelity progressive damage simulation of notched composite laminates with various ply thicknesses
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不同层厚的缺口复合材料层压板的多保真渐进损伤模拟
DOI：
10.1016/j.ijsolstr.2022.111518
复制
发表时间：
2022
影响因子：
3.6
通讯作者：
Tay T.E.
中科院分区：
文献类型：
--
作者：
Higuchi R.;Aoki R.;Onodera S.;Lu X.;Zhi J.;Leong K.H.;Yokozeki T.;Okabe T.;Tay T.E.
在这项研究中，开发了复合材料层合板的多保真度断裂模拟方案，该方案实现了中保真度裂纹模型和高保真度裂纹模型（即弥散裂纹模型（SCM）和离散裂纹模型（DCM）之间的无缝过渡）。该方案基于自适应离散涂抹裂纹（A-DiSC）方法和饱和裂纹密度理论模型。 A-DiSC 方法首先采用 DCM 对层压板中的横向裂纹进行建模。如果每层的裂纹密度达到使用理论模型计算的饱和值，则将DCM转换为SCM。此时，一些长于特定临界长度的裂纹仍由 DCM 明确建模，因为它们会显着影响后续最终失效的路径。通过结合这两个模型，该方法降低了计算成本，同时保持足够的预测精度，特别是在存在大量非关键裂纹直至失效的情况下。通过对不同层厚复合材料层合板的开孔拉伸试验进行模拟，验证了所开发方案的预测精度，并将预测结果与实验结果进行了比较。
In this study, a multi-fidelity fracture simulation scheme of composite laminates that accomplishes a seamless transition between medium- and high-fidelity crack models, namely, smeared crack models (SCMs) and discrete crack models (DCMs), is developed. The proposed scheme is based on the adaptive discrete-smeared crack (A-DiSC) method and a theoretical model for saturated crack density. The A-DiSC method first employs a DCM to model the transverse cracks in the laminates. If the crack density of each ply reaches the saturation value calculated using the theoretical model, the DCM is converted to an SCM. At this point, some cracks that are longer than a certain critical length remain explicitly modeled by the DCM, as they can significantly affect the subsequent path to final failure. By combining the two models, this method reduces the computational cost while preserving a sufficient prediction accuracy particularly in the case with numerous noncritical cracks up to failure. A simulation of the open-hole tensile test of composite laminates with various ply thicknesses was performed to verify the prediction accuracy of the developed scheme, and the predicted results were compared with the experimental results.
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DOI：
10.1061/(asce)0733-9399(1998)124:3(277
发表时间：
1998-03
期刊：
Journal of Engineering Mechanics-asce
影响因子：
--
作者：
M. Jirásek;T. Zimmermann
通讯作者：
M. Jirásek;T. Zimmermann
DOI：
10.1016/j.ijsolstr.2006.09.007
发表时间：
2007-05
影响因子：
3.6
作者：
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通讯作者：
M. Nishikawa;T. Okabe;N. Takeda
影响因子：
2.9
作者：
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通讯作者：
Okabe, T.
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DOI：
10.1016/j.compositesa.2012.03.002
发表时间：
2012
影响因子：
8.7
作者：
Xiangqian Li;S. Hallett;M. Wisnom
通讯作者：
M. Wisnom
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影响因子：
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作者：
Xinzhang Zhou;A. Belianinov;A. Naskar
通讯作者：
A. Naskar