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Mechanical Engineering Commons

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Selected Works

2014

Mesfin Tsige

Articles 1 - 2 of 2

Full-Text Articles in Mechanical Engineering

Molecular Modeling Of Thermosetting Polymers: Effects Of Degree Of Curing And Chain Length On Thermo-Mechanical Properties, Natalia Shenogina, Mesfin Tsige, Sharmila Mukhopadhyay, Soumya Patnaik May 2014

Molecular Modeling Of Thermosetting Polymers: Effects Of Degree Of Curing And Chain Length On Thermo-Mechanical Properties, Natalia Shenogina, Mesfin Tsige, Sharmila Mukhopadhyay, Soumya Patnaik

Mesfin Tsige

No abstract provided.


Molecular Modeling Approach To Prediction Of Thermo-Mechanical Behavior Of Thermoset Polymer Networks, Natalia Shenogina, Mesfin Tsige, Soumya Patnaik, Sharmila Mukhopadhyay May 2014

Molecular Modeling Approach To Prediction Of Thermo-Mechanical Behavior Of Thermoset Polymer Networks, Natalia Shenogina, Mesfin Tsige, Soumya Patnaik, Sharmila Mukhopadhyay

Mesfin Tsige

Molecular dynamics and molecular mechanics simulations have been used to study thermo-mechanical response of highly cross-linked polymers composed of epoxy resin DGEBA and hardener DETDA. The effective cross-linking approach used in this work allowed construction of a set of stress-free molecular models with high conversion degree containing up to 35000 atoms. The generated structures were used to investigate the influence of model size, length of epoxy strands, and degree of cure on thermo-mechanical properties. The calculated densities, coefficients of thermal expansion, and glass transition temperatures of the systems are found to be in good agreement with experimental data. The computationally …