Publications associées à Fragilité

Size effect on punching shear strength: differences and analogies with shear in one-way slabs

Size effect has been theoretically and experimentally acknowledged as a phenomenon influencing the shear and punching shear strength of concrete structures, with reducing unitary shear strength for increasing member sizes. For members failing in shear, as ...

2016

Fracture toughness measurement in fused quartz using triangular chevron-notched micro-cantilevers

Andreas Mortensen, Goran Zagar, Martin Guillermo Mueller, Václav Pejchal, Lionel Michelet

We extend to flat surfaces the fracture toughness method presented in Acts Materialia vol. 86 (2015) p.385 and measure in this manner the fracture toughness of fused quartz. Tests give 0.67 +/- 0.01 MPa m(1/2) which agrees with earlier microscopic and macr ...

Elsevier2016

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Yves Bellouard, Christos Edouardos Athanasiou

Mechanical testing of materials at the microscales is challenging. It requires delicate procedures not only for producing and handling the specimen to be tested, but also for applying an accurate and controlled force. This endeavor is even more challenging ...

MDPI2015

Effect of treatment on the microstructural characteristics of bio-improved sand

Lyesse Laloui, Dimitrios Terzis

Bio-chemical processes have recently become the core of several studies in the geoengineering field, where the emphasis is placed on new and emerging applications. Microbially Induced Calcite Precipitation has been introduced as an alternative cementation ...

IOS Press, 20152015

Influence of internal impacts between fragments in dynamic brittle tensile fragmentation

Jean-François Molinari, Marco Vocialta

Dynamic fragmentation phenomena involve two important mechanisms: atomic debonding and internal impacts among formed fragments. While the former, i.e. energy dissipation due to crack propagation, has been frequently studied both theoretically and numerical ...

Elsevier2015

Constitutive analysis of shale: a coupled damage plasticity approach

Lyesse Laloui, Francesco Parisio

Shales have become increasingly important because they play key roles in modern energy and environmental geomechanics applications, such as nuclear waste storage, non-conventional oil and gas operations and CO2 geological storage. Shale behaves in a quasi- ...

Elsevier2015

Brittle versus ductile deformation as the main control of the deep fluid circulation in oceanic crust

Marie Estelle Solange Violay

The brittle to ductile transition may strongly influence hydraulic properties of rocks at the depth and temperature ranges that hydrothermal fluids circulate. To examine this transition in the context of the oceanic crust, we conducted a series of deformat ...

American Geophysical Union2015

Fracture toughness testing of nanocrystalline alumina and fused quartz using chevron-notched microbeams

Andreas Mortensen, Marco Cantoni, Goran Zagar, Martin Guillermo Mueller, Václav Pejchal

We show that chevron-notched samples offer an attractive approach to the measurement of fracture toughness in micron-scale samples of brittle materials and use the method to characterize quartz and nanocrystalline alumina. Focused ion beam milling is used ...

Elsevier2015

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Fragilité

Size effect on punching shear strength: differences and analogies with shear in one-way slabs

Influence of bond and anchorage conditions of the shear reinforcement on the punching strength of RC slabs

Fracture toughness measurement in fused quartz using triangular chevron-notched micro-cantilevers

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Effect of treatment on the microstructural characteristics of bio-improved sand

Influence of internal impacts between fragments in dynamic brittle tensile fragmentation

Constitutive analysis of shale: a coupled damage plasticity approach

Reactive friction stir processing of AA 5052-TiO2 nanocomposite: process-microstructure-mechanical characteristics

Brittle versus ductile deformation as the main control of the deep fluid circulation in oceanic crust

Fracture toughness testing of nanocrystalline alumina and fused quartz using chevron-notched microbeams

Graph Chatbot

Chattez avec Graph Search

Influence of internal impacts between fragments in dynamic brittle tensile fragmentation

Size effect on punching shear strength: differences and analogies with shear in one-way slabs

Reactive friction stir processing of AA 5052-TiO2 nanocomposite: process-microstructure-mechanical characteristics

Brittle versus ductile deformation as the main control of the deep fluid circulation in oceanic crust

Fracture toughness measurement in fused quartz using triangular chevron-notched micro-cantilevers

Influence of bond and anchorage conditions of the shear reinforcement on the punching strength of RC slabs

A Monolithic Micro-Tensile Tester for Investigating Silicon Dioxide Polymorph Micromechanics, Fabricated and Operated Using a Femtosecond Laser

Constitutive analysis of shale: a coupled damage plasticity approach

Effect of treatment on the microstructural characteristics of bio-improved sand

Fracture toughness testing of nanocrystalline alumina and fused quartz using chevron-notched microbeams