Stress/strain development around a spherical inclusion in a polymeric matrix: The effects of particle and matrix mechanical characteristics and thermal expansivity difference

作者：Hosseinpour Dariush^*; Berg John C

来源：Journal of Applied Polymer Science, 2012, 126(2): 678-685.

DOI：10.1002/app.36855

• stress development
• strain development
• particle-filled composite
• Goodier Model
• Young%26apos
• s modulus
• Poisson%26apos
• s ratio
• Coating composites
• thermal expansion coefficient

For a spherical inclusion embedded in an infinite polymeric matrix, the Goodier Model, combined with thermal stress contribution, is applied to establish the stress/strain fields around a spherical particle in different particle/matrix combinations, including TiO2, alumina, silica, steel, polystyrene, and polyvinyl butyral particles embedded in a range of polymeric matrices. This approach provides the basis for examining the effects of different parameters such as Young%26apos;s modulus and Poisson%26apos;s ratio of the particle and matrix, and the thermal history of samples on the failure-initiation criteria. An explanation is provided for divergent results obtained for very soft and elastic particles.

• 出版日期2012-10-15