2026-09-23T19:14:26Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/95872021-07-05T14:03:20Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Mary C. Boyce.
Nguyen, Thao D. (Thao Du Phuong), 1976-
Massachusetts Institute of Technology. Department of Mechanical Engineering
2005-08-19T18:44:28Z
2005-08-19T18:44:28Z
1998
1998
http://hdl.handle.net/1721.1/9587
42085655
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1998.
Includes bibliographical references (p. [189]).
Many structural polymers exhibit brittle behavior at low temperatures and/or high strain rates. It has been shown that the incorporation of rubber and inorganic particles can have significant toughening effects. Previous studies have shown that the particles can alter the matrix morphology at the particle-polymer interface to provide the material with a low shear yield strength tangential to the particle interface thus promoting extensive plastic flow. Through finite element analysis, this thesis examines the micromechanisms of deformation for the toughened polymer blends. Particularly, how the nature of the particles and its bonding with the matrix affect the development of plastic deformation in the matrix material. Micromechanical models are constructed for the both the isotropic and anisotropic polymer matrix modified by rubber and inorganic particles. For the case of the inorganic particle, the two limiting bonding cases examined are the incoherent and the perfectly bonded particle.
by Thao D. Nguyen.
S.B.
188, [1] p.
14862262 bytes
14862017 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
Micromechanics of deformation in polymers modified by inorganic and rubber particles
Thesis
application/pdf
false
Publication
unknown
unknown
<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="6774dd02-aef6-4a4a-9cc4-f21b87e038aa">
<Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type>
<Language>eng</Language>
<Title>Micromechanics of deformation in polymers modified by inorganic and rubber particles</Title>
<PublishedIn>
<Publication>
</Publication>
</PublishedIn>
<PublicationDate>1998</PublicationDate>
<Authors>
<Author>
<DisplayName>Nguyen, Thao D. (Thao Du Phuong), 1976-</DisplayName>
<Affiliation>
<OrgUnit>
</OrgUnit>
</Affiliation>
</Author>
</Authors>
<Editors>
</Editors>
<Publishers>
<Publisher>
<DisplayName>Massachusetts Institute of Technology</DisplayName>
<OrgUnit />
</Publisher>
</Publishers>
<License>http://dspace.mit.edu/handle/1721.1/7582</License>
<Keyword>Mechanical Engineering</Keyword>
<Abstract>Many structural polymers exhibit brittle behavior at low temperatures and/or high strain rates. It has been shown that the incorporation of rubber and inorganic particles can have significant toughening effects. Previous studies have shown that the particles can alter the matrix morphology at the particle-polymer interface to provide the material with a low shear yield strength tangential to the particle interface thus promoting extensive plastic flow. Through finite element analysis, this thesis examines the micromechanisms of deformation for the toughened polymer blends. Particularly, how the nature of the particles and its bonding with the matrix affect the development of plastic deformation in the matrix material. Micromechanical models are constructed for the both the isotropic and anisotropic polymer matrix modified by rubber and inorganic particles. For the case of the inorganic particle, the two limiting bonding cases examined are the incoherent and the perfectly bonded particle.</Abstract>
<Access xmlns="http://purl.org/coar/access_right"
>
</Access>
</Publication>