Abstract: A rheological stochastic model to predict the cyclic stress‐strain behavior of concrete subjected to uniaxial compressive loading is proposed. The model consists of rheological elements with random state variables with ...

Abstract: Constitutive properties of concrete under dynamic loading are necessary for the rational analysis of concrete structures subject to impact and impulsive loads. The constitutive model presented herein models microcracking ...

Abstract: For rational design of concrete structures subjected to impact and impulsive loading, the constitutive properties of concrete over a wide range of strain rates are required. With this aim in mind, concrete and fiber ...

Abstract: An analytical and experimental investigation of mode I (tensile) and mixed mode (combined tensile and shear) fracture of concrete subjected to impact loading was conducted. The rate of loading ranged from a slow strain rate of

Abstract: There is growing interest in the effect of processing methods on the properties of cement composites. The present work compares two processing methods: casting and extrusion. The effects of high fly-ash content (70% by ...

Abstract: Concrete with compressive strength up to 140 MPa (20,000 psi) can now be economically produced. For these high‐strength concretes it has been shown that one cannot use the same empirical relationships between compressive ...

Abstract: The fracture processes in cement-based materials (cement paste, mortar, and concrete) subjected to compressive loads are examined. The use of friction-reducing materials reduced the end constraints and eliminated the barrel ...

Abstract: Attempts to apply linear elastic fracture mechanics (LEFM) to concrete have been made for several years. Several investigators have reported that when fracture toughness,

Abstract: A continuous damage theory is presented for the quasi‐static and dynamic behavior of brittle materials. The fact that the strain‐rate effects observed can be mainly attributed to the rate‐sensitivity of the microcracking ...