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2 328 (0,233s) •

Project

Role of temperature and metallurgical effects in cracking mechanisms of duplex stainless steels during sulphide stress corrosion cracking (GA106/03/0139)

Sulphide stress corrosion cracking (SSCC) of duplex stainless steels (DSS of environmentally assisted cracking. Phenomeno logically those processes are hydrogen inducedstress corrosion cracking and chloride induced...

JK - Koroze a povrchové úpravy materiálu

  • 2003 - 2005
    • •
  • 1 767 tis. Kč
    • •
  • 1 767 tis. Kč
    • •
  • GA ČR
Project

Study of the stress corrosion cracking nucleation and growth structural relationships in pipelines steel (GA106/99/P053)

Stress corrosion cracking belongs to the range of very dangerous processes of stress corrosion cracking ( i. e. lay down a relationship of main structural compounds - such as a grain boundaries, inclusions ... - to...

JL - Únava materiálu a lomová mechanika

  • 1999 - 2001
    • •
  • 673 tis. Kč
    • •
  • 624 tis. Kč
    • •
  • GA ČR
Project

Crack induced slip processes and stresses in bcc iron (KJB200760802)

. Stress calculations on the atomistic level avoid the stress singularity at the crackOur project concerns crack stability in bcc iron. In this field we have already performed two experiments on single crystals of ...

BM - Fyzika pevných látek a magnetismus

  • 2008 - 2009
    • •
  • 306 tis. Kč
    • •
  • 306 tis. Kč
    • •
  • AV ČR
Project

The effect of free surface on fatigue crack growth (GP106/06/P239)

The nature of the crack tip singularity changes in the vicinity of a corner point where a crack front intersects a free surface. Due to the fact, crack into the consideration. There are two types of stress singular...

JL - Únava materiálu a lomová mechanika

  • 2006 - 2008
    • •
  • 875 tis. Kč
    • •
  • 875 tis. Kč
    • •
  • GA ČR
Project

Harmonisation of Accelerated Stress Corrosion Testing (OK 297)

Project Harmonisation of Stress Corrosion Testing was designed as part of standartization effort in the field of stress corrosion cracking. The main aim is testing of several methods of the measuting of threshold value for ...

JK - Koroze a povrchové úpravy materiálu

  • 1997 - 1999
    • •
  • 1 245 tis. Kč
    • •
  • 790 tis. Kč
    • •
  • MŠMT
Project

Innovative techniques for assessment of residual life of bodies with fatigue cracks (GA101/08/1623)

will be obtained from fatigue crack experiments in threshold area and low-cycle fatigue experiments. The distribution of the T-stress along the crack front and stress singularity of residual life of bodies with fa...

JL - Únava materiálu a lomová mechanika

  • 2008 - 2009
    • •
  • 1 562 tis. Kč
    • •
  • 1 562 tis. Kč
    • •
  • GA ČR
Project

Refinement of fracture prediction of thin-walled cylindrical shells damaged by stress corrosion (IAA200710604)

Penetration of a corrosive medium into a stress corrosion crack (SCC) in steel leads to embrittlement of the crack tip region. It can be supposed that this fact affects the resistance of material against crack exte...

JK - Koroze a povrchové úpravy materiálu

  • 2006 - 2008
    • •
  • 1 658 tis. Kč
    • •
  • 1 658 tis. Kč
    • •
  • AV ČR
Project

Description of the slow crack growth in polymer materials under complex loading conditions (GAP108/12/1560)

into account residual stresses. Slow crack growth can be described by the corresponding of slow stable crack (creep crack) growth became important scientific topic. Therefore, the general goal of the project lies ...

JL - Únava materiálu a lomová mechanika

  • 2012 - 2014
    • •
  • 6 626 tis. Kč
    • •
  • 6 626 tis. Kč
    • •
  • GA ČR
Project

Micro-interpretation of fatigue defects in steels of various strengths (GA103/06/1382)

crack propagation. Fatigue cracks are initiated at corrosion pits being formed at inclusions, therefore the analysis embraces stress concentration influences at pits which result in the growth of fatigue cracks th...

JL - Únava materiálu a lomová mechanika

  • 2006 - 2008
    • •
  • 3 824 tis. Kč
    • •
  • 3 824 tis. Kč
    • •
  • GA ČR
Project

Novel principles for life prediction in variable loading of components (GA101/07/1500)

on the stress amplitude but on the plastic strain amplitude. It is important to use a differential characteristic, the growth rate of short cracks Within a proposed project new findings concerning the effect of plastic strain ampli...

JS - Řízení spolehlivosti a kvality, zkušebnictví

  • 2007 - 2009
    • •
  • 2 883 tis. Kč
    • •
  • 2 883 tis. Kč
    • •
  • GA ČR
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