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Projekt

Computational modelling of ductile fracture of identical wrought and printed metallic materials under ultra-low-cycle fatigue (GA23-04724S)

The project deals with formulation, implementation and validation of non-associated anisotropic model of plasticity, combined with evolution of ductile damage and fracture at cyclic non-proportional loading. The models will be depen...

Applied mechanics

  • 2023 - 2025
    • •
  • 9 984 tis. Kč
    • •
  • 9 984 tis. Kč
    • •
  • GA ČR
Projekt

Study of damage zone in high ductile materials in vicinity of crack tip by X-ray dynamic defectoscopy method (GA106/04/0567)

As many high performance structures in industry are designed from ductile materials, there exists a need to determine the proper fracture criteria in the range of non-linear and large deformations. Intensive internal materi...

JL - Únava materiálu a lomová mechanika

  • 2004 - 2006
    • •
  • 1 918 tis. Kč
    • •
  • 1 918 tis. Kč
    • •
  • GA ČR
Projekt

FJFI ČVUT - Haušild (LZ1K03001)

The main goal of the project is deeper knowledge of mechanisms of brittle-to-ductile transition in steels.The characterization of influence of microstructure on mechanisms of initiation and propagation of cleavage will shed light on physical...

JG - Hutnictví, kovové materiály

  • 2003 - 2005
    • •
  • 728 tis. Kč
    • •
  • 678 tis. Kč
    • •
  • MŠMT
Projekt

Advanced phenomenological models of plasticity and their application to life assessment of machine components (GA15-20666S)

and ductile fracture in metal plasticity. Recently, coupled or uncoupled models of ductile fracture are used in this field with the usage of classical isotropic or kinematic distortional models of hardening into u...

JG - Hutnictví, kovové materiály

  • 2015 - 2017
    • •
  • 5 002 tis. Kč
    • •
  • 5 002 tis. Kč
    • •
  • GA ČR
Projekt

Microstructural Design of Engineering Materials with High Toughness (GAP107/10/0361)

on the onsets of stages in ductile damage. All these effects will be considered in a comprehensive statistical model of ductile fracture. The most appropriate size and spatial in the processes of ductile damage, n...

JG - Hutnictví, kovové materiály

  • 2010 - 2012
    • •
  • 4 512 tis. Kč
    • •
  • 4 512 tis. Kč
    • •
  • GA ČR
Projekt

Strength of materials and mechanical components based on iron Multi-scale approach (GA17-12925S)

Ductile or brittle behavior of cracks is one of the key phenomena which may on ductile/brittle behavior of a central crack under biaxial tension show that the change of called T-stress can change ductile crack behavior to b...

JG - Hutnictví, kovové materiály

  • 2017 - 2019
    • •
  • 10 770 tis. Kč
    • •
  • 9 683 tis. Kč
    • •
  • GA ČR
Projekt

Evaluation of the energy responsible for fracture advancing (GA103/09/2101)

Many high performance structures are manufactured from thin wall ductile materials due to size effects. Therefore, fracture mechanics (FM) theories is usually characterized by the fracture toughness. Standardized approaches...

JM - Inženýrské stavitelství

  • 2009 - 2012
    • •
  • 3 876 tis. Kč
    • •
  • 3 876 tis. Kč
    • •
  • GA ČR
Projekt

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 mater...

JL - Únava materiálu a lomová mechanika

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

Molecular dynamic simulations of brittle-ductile behaviour of microcracks in 2D and 3D (IAA2076201)

to find the stress criteria for the brittle or ductile behaviour. We plan alsoThe project is motivated by efforts to understand the brittle-ductile behaviour of crystalline materials. Molecular dynamic simulations of 2D an...

JG - Hutnictví, kovové materiály

  • 2002 - 2005
    • •
  • 2 918 tis. Kč
    • •
  • 1 108 tis. Kč
    • •
  • AV ČR
Projekt

*Ductile damage parameters identification for nuclear power stations (FR-TI2/279)

*The project deals with ductile damage parameters identification for materials of nuclear power station components. The project main goal is ductile damage parameters identification and procedure development for their determination....

JG - Hutnictví, kovové materiály

  • 2010 - 2012
    • •
  • 15 444 tis. Kč
    • •
  • 12 255 tis. Kč
    • •
  • MPO
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