Abstract: A laboratory experiment was conducted to study hydraulic fracturing in an impermeable material (PMMA). Quantitative experimental data were obtained to compare with numerical predictions for a ...

Abstract: An integral equation was developed to predict the critical parameters (fracture width and length) associated with the propagation of a vertical hydraulic fracture and a numerical solution procedure ...

Abstract: Specific constitutive equations are proposed for a material exhibiting isotropic-elastic response in its reference configuration, strain-rate, temperature and density dependent plastic flow with ...

Abstract: General nonlinear constitutive equations for a thermoelastic-viscoplastic material that exhibits a rate-dependent yield strength are developed by assuming that the yield function depends explicitly ...

Abstract: Free vibration of a rectangular parallelepiped composed of a homogeneous linear elastic isotropic material is studied. The parallelepiped is modeled as an isotropic Cosserat point and simple ...

Abstract: It is well known that the impulse of the contact force acting during impact of two rigid bodies determines the abrupt change in the motions of the two bodies. Much recent work has been ...

Abstract: The theory of a Cosserat point is developed to describe motion of a body that is essentially a material point surrounded by some small volume. The development of this theory is motivated ...

Abstract: The theory of a Cosserat point is specialized to describe the motion of a one-dimensional continuum. Attention is focused on two problems of an elastic bar. Vibration of a linear-elastic bar ...

Abstract: The creep theory of multipulley belt drive systems is reexamined and the belt is modeled as an elastic extensible string. An exact solution of the nonlinear steady state equations of a string ...