Abstract: A brittle aggregate composite such as portland cement concrete or mortar is modeled in two dimensions as a system of perfectly rigid particles of various sizes separated by interface layers that are characterized by a given ...

Abstract: A novel constitutive model for concrete, which approximately describes the basic known test data on nonlinear triaxial behavior including strain‐softening, is presented. The model rests on two basic ideas: (1) The stress‐strain ...

Abstract: Flip chip assemblies used in electronic packaging consist of three main components (layers): chip, underfill, and substrate. In this paper, the flip chip assembly is represented as a bi-material ...