Numerical implementation of shape memory alloy (SMA) constitutive response and structural analysis of active composites /
active composite problems. In the first problem, it is used
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | active composite problems. In the first problem, it is used and generalized plain strain, as well as 1 -D material states are incorporated in the implementation. Flexibility is given based on the finite element method formulated according to classical 2-D finite element method. 2-D plane strain and conditions are established for finite element usage. An cosine model (I 990, 1992), and Boyd-Lagoudas's polynomial experimental results obtained from Taya et al. (1993). The formulation. Similar displacement and stress fields are generalized plane strain cases are calculated and compared to in conjunction with the finite element method (FEM) to in the general structure of the scheme, for future increase in the overall yield stress of the composite is integration of other constitutive models. Feasibility of the model (1995), are implemented. Complex 3-D, 2-D plane strain namely, Tanaka's exponential model (I 986), Liang-Rogers' numerical implementation is manifested in the analysis of two Numerical implementation of the thermomechanical constitutive obtained for both layerwise cases, whereas Euler-Bernoulii of aluminum matrix and embedded SMA wires along the length of periodic arrangements are considered, and respective boundary predict the thermomechanical response of an aluminum matrix / response of shape memory alloys (SMAs) is performed using a results are found to be exceeding to layerwise calculations. return mapping integration scheme (Ortiz and Simo, 1986). second problem consists of an active composite beam, composed shown and qualitative agreement is found relative to size of the problem computational-wise, relative to the SMA fiber composite. Suitable tetragonal and hexagonal the beam, under thermal activation. The numerical scheme is The implementation is based on the framework of a the layerwise plate theory (Reddy, 1987), which reduces the the results acquired from Euler-Bernoulii beam theory thermodynamic approach proposed by Bo and Lagoudas (1994). Three models unified under the thermodynamic formalism, |
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| Item Description: | "Major subject: Aerospace Engineering". Vita. |
| Physical Description: | xii, 126 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |