| A Constitutive Model for As4/Peek Thermoplastic Composites Under Cyclic Loading Contributor(s): Nasa, National Aeronautics and Space Adm (Author) |
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ISBN: 1729047572 ISBN-13: 9781729047576 Publisher: Independently Published
Binding Type: Paperback Published: October 2018 * Out of Print * |
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| Additional Information |
| BISAC Categories: - Science | Space Science |
| Physical Information: 0.08" H x 8.5" W x 11.02" L (0.26 lbs) 40 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Based on the basic and essential features of the elastic-plastic response of the AS4/PEEK thermoplastic composite subjected to off-axis cyclic loadings, a simple rate-independent constitutive model is proposed to describe the orthotropic material behavior for cyclic loadings. A one-parameter memory surface is introduced to distinguish the virgin deformation and the subsequent deformation process and to characterize the loading range effect. Cyclic softening is characterized by the change of generalized plastic modulus. By the vanishing yield surface assumption, a yield criterion is not needed and it is not necessary to consider loading and unloading separately. The model is compared with experimental results and good agreement is obtained. Rui, Yuting and Sun, C. T. Unspecified Center NAG1-825... |
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