2026-09-20T15:09:38Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/297422022-01-13T07:54:36Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
David M. Parks.
Yin, Yuan, 1977-
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2006-03-24T16:21:22Z
2006-03-24T16:21:22Z
2003
2003
http://hdl.handle.net/1721.1/29742
54055603
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2003.
Includes bibliographical references (leaves 83-85).
A single-crystal plasticity model of the L12 structure intermetallic compound Ni3Al
is developed, in light of recent theoretical developments and experimental evidence.
Computational results show that the model is capable of predicting the major anomalous
mechanical behaviors of L12 structures, including increase of yield strength with
increasing temperature, strong orientation dependence of the yield stress, tensioncompression
asymmetry, and small strain rate sensitivity.
Some ideas on revising the plasticity model have been presented. Though not
completed, the new approach points to promising future directions in simulating both
the yield behavior and the strain hardening properties of L12 compounds.
by Yuan Yin.
S.M.
85 leaves
2559179 bytes
2558984 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
Towards mechanism-based constitutive modelling of L1₂ crystal plasticity
Thesis
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is developed, in light of recent theoretical developments and experimental evidence.
Computational results show that the model is capable of predicting the major anomalous
mechanical behaviors of L12 structures, including increase of yield strength with
increasing temperature, strong orientation dependence of the yield stress, tensioncompression
asymmetry, and small strain rate sensitivity.
Some ideas on revising the plasticity model have been presented. Though not
completed, the new approach points to promising future directions in simulating both
the yield behavior and the strain hardening properties of L12 compounds.</Abstract>
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