Finite element analysis of structural components by using viscoplastic models with application to a cowl lip problem
作者:
AryaV.K.,
期刊:
Materials at High Temperatures
(Taylor Available online 1991)
卷期:
Volume 9,
issue 4
页码: 201-208
ISSN:0960-3409
年代: 1991
DOI:10.1080/09603409.1991.11689661
出版商: Taylor&Francis
关键词: finite element analysis;viscoplastic model;hypersonic engine
数据来源: Taylor
摘要:
The viability of advanced viscoplastic models for nonlinear finite element analyses of structural components is investigated. Several uniaxial and a multiaxial problem are analysed by using the finite element implementation of Freed's viscoplastic model. Good agreement between the experimental and calculated uniaxial results validates the finite element implementation and gives confidence to apply it to more complex multiaxial problems. A comparison of results for a sample structural component (the cowl lip of a hypersonic engine inlet) with the earlier elastic, elastic-plastic, and elastic-plastic-creep analyses available in the literature shows that the elastic-viscoplastic analyses yield more reasonable stress and strain distributions. Finally, the versatility of the finite-element-based solution technology presented here is demonstrated by applying it to another viscoplastic model.
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