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885 (0,163s) •

Project

Micromechanical aspects of brittle fracture initiation with respect to impurity effects (OC 517.20)

Analysis of micromechanical features of brittle fracture initiation controlled by intergranular failure. Mechanisms identification that are governing this kind of failure micromechanism. Intergranular failure micro...

JL - Únava materiálu a lomová mechanika

  • 1997 - 2001
    • •
  • 2 455 tis. Kč
    • •
  • 1 565 tis. Kč
    • •
  • MŠMT
Project

The scaling role of damage inhomogeneity in brittle fracture (IAA200410502)

of failures. For selected inherently brittle materials the damage development at the crack tip during brittle transgranular fracture initiation will be followed. The damage of deterministic and stochastic nature of fai...

JL - Únava materiálu a lomová mechanika

  • 2005 - 2009
    • •
  • 3 375 tis. Kč
    • •
  • 3 375 tis. Kč
    • •
  • AV ČR
Project

Creation of a Physical Model of a Brittle Unhomogeneous Materials Failure Mechanism Due to Non-Traditional Energic Exertion (GA106/93/2338)

JJ - Ostatní materiály

  • 1993 - 1995
    • •
  • 225 tis. Kč
    • •
  • 450 tis. Kč
    • •
  • GA ČR
Project

The micromechanics of self-affine fractal cracks in brittle materials (GA106/06/0646)

Micro-structural effects on the fractality of cracks in brittle and quasi-brittle materials will be investigated. Irregularities of fracture surface described from its initiation to final brittle fracture instability. The m...

JL - Únava materiálu a lomová mechanika

  • 2006 - 2008
    • •
  • 2 362 tis. Kč
    • •
  • 2 362 tis. Kč
    • •
  • GA ČR
Project

Elimination of brittle fracture in structural thermoplastics (GA106/98/0718)

Brittle fracture is the most damaging way of materials failure, as all available mechanical energy is concentrated at the tip of a growing crack. The aim of this interdisciplinary project is the prevention of brittle fractu...

JH - Keramika, žáruvzdorné materiály a skla

  • 1998 - 2000
    • •
  • 2 887 tis. Kč
    • •
  • 2 339 tis. Kč
    • •
  • GA ČR
Project

Brittle fracture micromechanics and toughness scaling models (IAA2041003)

For structural steels and ceramics the material brittle fracture resistance will be followed. Parameters characterising the local fracture resistance will be evaluated failures. Determining the (in)dependence of damage sites distrib...

JL - Únava materiálu a lomová mechanika

  • 2000 - 2004
    • •
  • 8 010 tis. Kč
    • •
  • 2 668 tis. Kč
    • •
  • AV ČR
Project

Impact response and dynamic failure of brittle materials (GA106/05/0495)

New ceramic and ceramic matrix composites development and reliability of methods for their fracture resistance evaluation have reached a stage, when these materials, until now unacceptable in structural applications for their high brittleness

JH - Keramika, žáruvzdorné materiály a skla

  • 2005 - 2007
    • •
  • 4 498 tis. Kč
    • •
  • 4 498 tis. Kč
    • •
  • GA ČR
Project

Effect of rock microfabric on the brittle failure process of rocks stressed under simulated laboratory conditions (GA205/04/0088)

rock microfabric and modes of failure has direct effect on the solution of some) will help interpretation of failure mechanism. The direct methods (mainly computer assisted image analysis, visualisation of brittle fracture...

DB - Geologie a mineralogie

  • 2004 - 2006
    • •
  • 2 599 tis. Kč
    • •
  • 1 499 tis. Kč
    • •
  • GA ČR
Project

Mechanics of brittle rock failure in critical depth (GA103/05/0334)

observation of the face failure from the standpoint of either stability or bumps...

JN - Stavebnictví

  • 2005 - 2007
    • •
  • 3 533 tis. Kč
    • •
  • 3 533 tis. Kč
    • •
  • GA ČR
Project

Nonlinear fracture in structural materials – investigation of expressions of energy dissipation in failure zone via advanced experiments and modelling (GA15-07210S)

During fracture of quasi-brittle/ductile materials the energy dissipates in an extensive nonlinear area at the crack tip. This zone consists of the fracture process standard fracture toughness tests, although material failure primar...

JL - Únava materiálu a lomová mechanika

  • 2015 - 2017
    • •
  • 7 630 tis. Kč
    • •
  • 7 630 tis. Kč
    • •
  • GA ČR
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