A study of plasticity by groups on pseudo-Euclidean spaces and experiments
Date Issued
2001
Date
2001
Author(s)
DOI
892211E002109
Abstract
In this year the project concentrated on some experiment related problems. We found that aluminum alloy 7075 unexpectedly exhibits ratcheting phenomena even in strain-controlled axial cyclic tests.We also proposed a multi-back-stress elastoplastic
model, similar to the models of Armstrong-Frederick and Chaboche, and developed a procedure for identifying its parameters, combining experimental techniques, FFT, and least square fitting.
Subjects
cyclic plasticity
asymmetry
Al7075
ratcheting
least square method
FFT
elastoplastic constitutive law
system parameter identification
Publisher
臺北市：國立臺灣大學土木工程學系暨研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
892211E002109.pdf
Size
143.49 KB
Format
Adobe PDF
Checksum
(MD5):0e9be9d5ff99de00ed2f7557a0a2bedb