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2 445 (0,116s) •

Project

Experimental study of crack initiation and crack damage stress thresholds as critical parameters influencing the durability of natural porous stone (GA13-13967S)

The durability of natural stone is assumed to be intimately related to pre-peak fracture process (crack initiation and damage), which can be derived from stress-strain behaviour during compression and/or tension. Compared t...

JN - Stavebnictví

  • 2013 - 2019
    • •
  • 9 858 tis. Kč
    • •
  • 9 858 tis. Kč
    • •
  • GA ČR
Project

Resistance to brittle damage use of petrographic/ rock mechanical data for the technological-mechanical behaviour and serviceability of crushed stone (GA18-08826S)

Resistance of rocks to brittle damage is expected to be governed by elasticity of rock-forming minerals and rock fabric, both influencing pre-peak fracture process. This involves crack initiation and crack dama...

Geology

  • 2018 - 2022
    • •
  • 5 278 tis. Kč
    • •
  • 5 185 tis. Kč
    • •
  • GA ČR
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, mainly those producing damage ...

JL - Únava materiálu a lomová mechanika

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

Computational modeling of damage and transport processes in quasi-brittle materials (GA13-18652S)

The aim of this project is to develop reliable, theoretically supported, simulation tools for damage processes in quasi-brittle materials at small strains driven by mechanical and transport phenomena. This will be achieved by a crit...

JM - Inženýrské stavitelství

  • 2013 - 2015
    • •
  • 5 750 tis. Kč
    • •
  • 5 750 tis. Kč
    • •
  • GA ČR
Project

Laboratory for Modelling of Behaviour of Quasi-brittle Materials (VS97040)

The project is focused on the research of mechanical behaviour of quasi-brittle materials as concrete, rocks, and ceramics under service und ultimate load conditions with the following subjects: I) Constitutive models for quasi-brittle

JN - Stavebnictví

  • 1997 - 2000
    • •
  • 19 924 tis. Kč
    • •
  • 10 822 tis. Kč
    • •
  • MŠMT
Project

Damage mechanism of structural brittle matrix composites loaded with high temperatures (1K04111)

Project is focused on complex investigation of damage mechanism of structural brittle matrix composites under high temperature conditions (fire, containers for nuclear waste) with using of experimental techniques and numerical simul...

JN - Stavebnictví

  • 2004 - 2007
    • •
  • 2 391 tis. Kč
    • •
  • 2 231 tis. Kč
    • •
  • MŠMT
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 of the project is to formulate a fractal model for prediction of fracture...

JL - Únava materiálu a lomová mechanika

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

High intensity respiratory muscle training as a pre-habilitation in lung surgery candidates (NU21-06-00086)

resection candidates and to be superior to peak oxygen uptake (peak VO2). Importantly, in contrast to most previously established PPC risk factors, VE/VCO2 slope and peak VO2 (e.g. by pre-habilitation) and may the...

Anaesthesiology

  • 2021 - 2024
    • •
  • 11 928 tis. Kč
    • •
  • 11 928 tis. Kč
    • •
  • MZ
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 of damage sites will be determined and linked up to real physica...

JL - Únava materiálu a lomová mechanika

  • 2000 - 2004
    • •
  • 8 010 tis. Kč
    • •
  • 2 668 tis. Kč
    • •
  • AV ČR
  • 1 - 10 out of 2 445