Effect of contact and non-contact load transfer on the stiffness of two phase materials
- Applied Research Assoc. Inc., Tyndall Air Force Base, FL (United States)
- Wright Lab., FIVC, Tyndall Air Force Base, FL (United States)
Many natural and artificial two-phase materials can be described in the forms of the matrix and inclusions, or the binder and particles. Inclusions/particles are embedded randomly in the matrix/binder. Asphalt concrete (AC), saturated soil and most particle/fiber-reinforced composites fall into this description. For many particulate materials such as AC, the force/load transfer mainly takes paths of particle-particle contacts or particle-binder-particle contacts, and using the contact mechanism to study the behaviors of those materials is appropriate. Descriptively, the contact mechanism can take the forms of concentrated quantities like contact forces, relative approaches, etc. On the other hand, the binder or matrix also has its share on the force/load transfer, and its evolvement should not be over-simplified or ignored. In this article, our study aims at those two-phase particulate materials that when they undergo compression, the force/load transfer in them is primarily through the skeleton of particles in contact. We will employ the basic cell method and attempt to pursue a stiffness study in which the roles of contact and non-contact natures, and the elasticity of binder/matrix are adequately accounted for in constituting the basic cell`s mechanical behavior.
- OSTI ID:
- 175248
- Report Number(s):
- CONF-950686-; TRN: 95:006111-0201
- Resource Relation:
- Conference: Joint applied mechanics and materials summer meeting, Los Angeles, CA (United States), 28-30 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of AMD - MD `95: Summer conference; PB: 520 p.
- Country of Publication:
- United States
- Language:
- English
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