A5049892619- High-Velocity Impact and Material Behavior
- Structural Response to Dynamic Loads
- Fatigue and fracture mechanics
- Metal Forming Simulation Techniques
- Rock Mechanics and Modeling
- Numerical methods in engineering
- Cellular and Composite Structures
- Dynamics and Control of Mechanical Systems
- Structural Health Monitoring Techniques
- Probabilistic and Robust Engineering Design
- Powder Metallurgy Techniques and Materials
- Mechanical and Optical Resonators
- Fluid Dynamics Simulations and Interactions
- Energetic Materials and Combustion
- Metallurgy and Material Forming
- Automotive and Human Injury Biomechanics
- Microstructure and mechanical properties
- Fluid Dynamics and Turbulent Flows
- Granular flow and fluidized beds
- Computational Fluid Dynamics and Aerodynamics
- Wind and Air Flow Studies
- Facial Trauma and Fracture Management
- Lipid Membrane Structure and Behavior
- Material Properties and Failure Mechanisms
- Drilling and Well Engineering
University of Manchester
2015-2024
Imperial College London
2012
This paper presents a pressure-dependent three-dimensional constitutive law to predict failure for laminated composites. The nonlinear response in shear and the transverse through-the-thickness directions, which is measured experimentally, incorporated directly into model. In addition, secant stiffnesses are dependent on state of hydrostatic pressure general strain. criteria distinguish between matrix failure, fibre kinking tensile failure. In-situ strengths used Propagation takes...
Abstract Scaled experimentation is an important approach for the investigation of complex systems but centuries has been impeded by want a scaling theory that can accommodate scale effects. The present definition effect founded on violation invariance principle arising out dimensional analysis, i.e. dimensionless equations do not change with scale. However, apart from all most rudimentary systems, governing invariably scale, thus providing very severe constraint reach scaled experimentation....
Size effects are particular types of scale effect, where the response a material is dependent to some extent on its size. These behaviour manifest greater or lesser in all materials, and pose problem for constitutive models, parameters determined through experimentation at one size inapplicable different sizes. The origin microstructural, defects structures ranging from cracks, fibres, grains, porosity, dislocations, precipitates, etc., which has led creation plethora microscale mesoscale...
Fluid dynamics experimentation at scale provides an important means of investigation that is presently underpinned by dimensional analysis and computational fluid (CFD). Unfortunately, despite the obvious success this twin approach, no solution if effects are prevalent CFD offers reduced practical advantage in absence a theory links information across scaled experiments. This issue addressed paper with introduction new approach to founded on finite similitude. Finite similitude metaphysical...
A geometric size effect is evident in fatigue loading with a scaled cracked component of the same material appearing stronger sense increased resistance. The number cycles to failure can increase markedly reduction and consequently, use components gauge life invariably conservative. question some interest however focus this work whether it possible establish precise analytical relationship between scale. This shown on application new scaling theory finite similitude, which connects...
A recent arrival in the open literature is scaling theory finite similitude bringing into existence a countably infinite number of new rules. The application to fracture mechanics has revealed that first-order rule applicable sense information gleaned from two fractured scaled components can be combined capture response third. This paper examines an unexplored aspect theory, that, it shown how re-configured for purposes analysis. achieved by retaining first derivative (with respect scale)...