Simulation of the effect laminate sequence on delamination mode-I with elastic couplings

Q3 Engineering

Diagnostyka Pub Date : 2022-06-07 DOI:10.29354/diag/150547

Mustafa Alhussein, Zuhair Ameer, A. Hamzah

引用次数: 3

Abstract

A numerical study using the ANSYS 19.R3 environment is discussed in this research. This environment depends on the Virtual Crack Closure Technique (VCCT) method to test a double cantilever beam (DCB) according to the ASTM D5528 standard. Four kinds of laminate stacking sequences were considered. According to the results, the distribution of the strain energy release rates obtained along the delamination front in bending-extension and extension-twisting coupling had a good affinity with bending-extension coupling. At the same time, critical fracture toughness values were estimated to be around 87.9% of critical fracture toughness values bending-extension coupling. These results are proof of the bending-extension and extensiontwisting coupling success while testing the proximity to bending-extension coupling results of the DCB beam. These findings are compatible with the standard ASTM D5288. Therefore, the bending-extension and extension-twisting coupling provide a good indication of the delamination resistance during buckling tests of

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带弹性耦合的层合顺序对分层模式ⅰ的影响模拟

本文讨论了在ANSYS 19.R3环境下进行的数值研究。该环境取决于根据ASTM D5528标准测试双悬臂梁（DCB）的虚拟裂纹闭合技术（VCCT）方法。考虑了四种层压板堆叠顺序。结果表明，在弯曲-拉伸和拉伸-扭转耦合中，沿分层前沿获得的应变能释放率的分布与弯曲-拉伸耦合具有良好的亲和力。同时，弯曲-拉伸耦合的临界断裂韧性值估计约为临界断裂韧性的87.9%。这些结果证明了弯曲-拉伸和拉伸-扭转耦合的成功，同时测试了DCB梁的弯曲-拉伸耦合结果的接近性。这些发现符合ASTM D5288标准。因此，弯曲-拉伸和拉伸-扭转耦合在

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Diagnostyka Engineering-Mechanical Engineering

CiteScore

2.20

自引率

0.00%

发文量

期刊介绍： Diagnostyka – is a quarterly published by the Polish Society of Technical Diagnostics (PSTD). The journal “Diagnostyka” was established by the decision of the Presidium of Main Board of the Polish Society of Technical Diagnostics on August, 21st 2000 and replaced published since 1990 reference book of the PSTD named “Diagnosta”. In the years 2000-2003 there were issued annually two numbers of the journal, since 2004 “Diagnostyka” is issued as a quarterly. Research areas covered include: -theory of the technical diagnostics, -experimental diagnostic research of processes, objects and systems, -analytical, symptom and simulation models of technical objects, -algorithms, methods and devices for diagnosing, prognosis and genesis of condition of technical objects, -methods for detection, localization and identification of damages of technical objects, -artificial intelligence in diagnostics, neural nets, fuzzy systems, genetic algorithms, expert systems, -application of technical diagnostics, -diagnostic issues in mechanical and civil engineering, -medical and biological diagnostics with signal processing application, -structural health monitoring, -machines, -noise and vibration, -analysis of technical and civil systems.