The Brittle failure

Part 2 of ebook "Engineering materials 1: An introduction to properties, applications, and design (Fourth edition)" provides readers with contents including: Part D - Fast fracture, brittle fracture, and toughness; Part E - Fatigue failure; Part F - Creep deformation and fracture; Part G - Oxidation and corrosion; Part H - Friction, abrasion, and wear;...

292p mothoiphong 28-06-2024 1 1   Download

In paper "Strain based brittle failure criteria for rocks" the enriched extension strain criterion is proposed as a threshold surface for crack initiation CI and crack damage CD and as a failure surface at peak P. Examples show that the enriched extension strain criterion predicts much lower volumes of damaged rock mass compared to the simple extension strain criterion.

10p dathienlang1012 03-05-2024 1 0   Download

Principles of Rock Mechanics: Part 1 has present the contents mechanics and rheology; introduction to rock mechanics; physical quantities and continua; force, pressure, and stress; stress ellipsoid and sign conventions; elasticity; brittle failure; ductile creep; viscosity and flow laws;...

160p chenlinong_0310 23-02-2022 11 1   Download

The numerical wedge splitting tests show that in the case of brittle materials, the lower post-failure stress limit defined in the concrete damaged plasticity model resulted in energy consumption for crack propagation exceeding the defined fracture energy (114% higher in the case of a brittleness number of 4.4).

9p guernsey 28-12-2021 9 0   Download

The brittleness index exhibits the strain-softening behaviour of soil and is often used to access the shear mechanism in slope failure. It has been widely investigated for diffirent materials, especially for brittle materials.

4p vivacation2711 23-10-2021 24 0   Download

The present work summarizes some recent experimental, theoretical and numerical results on brittle fracture of isostatic polycrystalline graphite. The analyses have been carried out on V-notched samples under mixed mode (I+II), torsion and compression loading, considering various combinations of the notch tip radius, opening angle and notch tilt angle.

20p tohitohi 19-05-2020 16 0   Download

The curves were developed in a computational manner in terms of the notch stress intensity factors and based on the suitable failure concept of the maximum tangential stress (MTS) utilized frequently in the past by the author and his co-researchers for predicting mixed mode brittle fracture in extensive notched specimens.

20p tohitohi 19-05-2020 10 0   Download

Mechanical resistance of a soil to failure has been widely used to estimate the degree of soil compaction. Our previous study showed that the magnitude of force measured by the horizontally operated penetrometer depends on the soil failure mode in front of the sensor tip.

10p vimb123 12-01-2019 20 3   Download

(bq) part 1 book "failure analysis case studies ii" has contents: bursting of a silo, failure of a flexible pipe with a concrete liner, torsional failure of a wire rope mooring line during installation in deep water, investigation of the mv kurdistan casualty, investigation of failed actuator piston rods,... and other contents.

169p bautroibinhyen19 02-03-2017 64 4   Download

The most popular of the rigid reinforcements for printed wiring boards is woven E-glass (electrical-grade glass) fabric. These fabrics are constructed to meet weight, thickness, strength, and cost objectives. The woven fabric is used in many industries as reinforcements for thermoplastic and thermosetting plastic parts. Thermosetting laminates are particularly enhanced by the properties of the glass fabric.

164p nguyenthai_thinh 16-03-2013 83 9   Download

Fractures are ubiquitous in the brittle lithosphere in the upper part of earth’s crust. They play a critical role in the transport of fluids. Moreover, all major discovered geothermal reservoirs and a considerable number of petroleum reservoirs are in fractured rocks. This restates the importance of studying multiphase flow behavior inside the opened fracture space. From the engineering point of view, a rock fracture as defined here is simply a complex-shaped cavity filled with fluids or solid minerals. Therefore it is understood to include cracks, joints, and faults.

0p aries23 29-09-2012 88 22   Download

It is now three years since Elsevier Science published the first book of Failure Analysis Case Studies selected fiom volumes 1,2 and 3 of the journal Engineering Failure Analysis. The book has proved to be a sought-after and widely used source of reference material to help people avoid or analyse engineering failures, design and manufacture for greater safety and economy, and assess operating, maintenance and fitness-for-purpose procedures.

462p khangoc2391 11-08-2012 57 9   Download

For AE FRP vessels are used as a primary means of assessment. It usually does not incorporate with strain gauge device or other sensor devices. This may be partly due to the nature of damage in FRP vessels and the resulting brittle failure mode. In the structure local damage can lead to catastrophic failure without warning clearly detected. one of the important advantages of sound emissions in this industry is the ability to assess the importance damage.

296p lulanphuong 27-03-2012 84 19   Download