Effect of Micro-parameters on the Macroscopic Behaviour of Ductile Fiber Reinforced Brittle Matrix Composites
In this paper, the modelling of crack bridging stress vs crack opening (?-?) relation of ductile fiber brittle matrix composite in terms of its microscopic parameters is described. Parametric...
The Ductile-Brittle Transition in Ice & Size Effect
This paper considers the ductile to brittle transition in ice under compression. Two criteria, one phenomenological and the other more physical, are presented for the transition strain...
Size Effects in the Fracture of Quasi-Brittle Materials
Causes and influences of the structural size effect that is exhibited by materials such as concrete, mortar, ice rock and ceramics, are discussed. The size effect law, which models this...
Cooperative Fracture?Statistical Models
The brittle failure of certain engineering materials represents but an ultimate phase in a process characterized by an evolving system of microdefects distributed over a large part of...
On Statistical Micromechanical Process Damage Models for Brittle Solids with Interacting Microcracks
Two-dimensional micromechanical damage models with strongly interacting microcracks are presented to investigate the overall nonlinear mechanical responses of microcrack-weakened brittle...
Reliability of Identical Brittle Parallel System
The failure path of a system can be investigated through the use of a failure graph, which is a directed graph of all possible sequences of element failures. This paper describes the development...
Brittleness Index of Cementitious Composites
Series of direct tension tests were conducted to observe the softening response of different types of cementitious composites, namely, mortar, plain concrete, high strength concrete, normal...
Brittleness of High Strength Concrete
Fracture mechanics approaches are needed to determine material parameters which are related to the brittleness of concrete and its structural response. The size effect method is used to...
Notch Sensitivity of Ice
Few investigators have examined closely the fracture toughness of macrocrystalline and seeded columnar freshwater ice. There has been a wide scatter in the toughness values obtained even...
A Lesson in Repairing Cracked Kaplan Blades
Each of the three units that failed at Bonneville Lock and Dam started with a fatigue break and ended in a brittle fracture. Consequently, a comprehensive in-house weld procedure was developed...
Quantifying Ductility in Continuous Composite Beams
Fracture Theory for Nonhomogeneous Brittle Materials with Application to Ice
Brittle heterogeneous materials generally fracture with a dispersed zone of microcracking at the fracture front. The deformation and failure of these materials can be described by a nonlocal...
Time-Dependent Damage and Creep of Brittle Rock
In this paper, some results of a combined analytical-experimental study of the relationship between subcritical microcrack growth due to stress corrosion and the time-dependent deformation...
Constitutive Theories for Solids with Defective Microstructure
The nonlinear mechanical response of solids is a macroscopic manifestation of the irreversible changes in its microstructure. The most common modes of the irreversible microstructural...
Microplane Model for Progressive Fracturing
Brittle or Ductile?
A Low Cost Fracture Toughness Test Method
Designing to Prevent Brittle Fractures in Bridges
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