高密度聚乙烯在高应变速率下的行为

Q4 Chemical Engineering Applied and Computational Mechanics Pub Date : 2021-06-30 DOI:10.24132/acm.2021.680

J. Trnka, E. Nezbedová, J. Kober, J. Buchar

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引用次数: 0

摘要

Hopkinson分裂压杆（HSPB）用于在102至103s-1的应变速率下测试三种聚合物。使用直接霍普金森试验获得了更高的应变速率。对实验数据进行了时域和频域评估。频域中更详细的分析表明，测试聚合物的描述可以在线性粘弹性的框架下进行描述。使用直接霍普金森试验表明发生了永久应变。

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Behavior of high-density polyethylene at high strain rates

The Hopkinson split pressure bar (HSPB) was used for the testing of three polymers at strain rates between 102 to 103 s-1. Higher strain rates were achieved using the direct Hopkinson test. Experimental data were evaluated in time as well as in the frequency domain. A more detailed analysis in the frequency domain showed that the description of tested polymers can be described in the framework of the linear viscoelasticity. The use of the direct Hopkinson test showed the occurrence of a permanent strain.

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来源期刊

Applied and Computational Mechanics Engineering-Computational Mechanics

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

14 weeks

期刊介绍： The ACM journal covers a broad spectrum of topics in all fields of applied and computational mechanics with special emphasis on mathematical modelling and numerical simulations with experimental support, if relevant. Our audience is the international scientific community, academics as well as engineers interested in such disciplines. Original research papers falling into the following areas are considered for possible publication: solid mechanics, mechanics of materials, thermodynamics, biomechanics and mechanobiology, fluid-structure interaction, dynamics of multibody systems, mechatronics, vibrations and waves, reliability and durability of structures, structural damage and fracture mechanics, heterogenous media and multiscale problems, structural mechanics, experimental methods in mechanics. This list is neither exhaustive nor fixed.