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Projects / Programmes source: ARIS

Modelling of Circumstances of Highly Loaded Mechanical Structures and Estimation of Fitness for Purpose

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Research activity

Code Science Field Subfield
2.11.02  Engineering sciences and technologies  Mechanical design  Special constructions know-how 

Code Science Field
T210  Technological sciences  Mechanical engineering, hydraulics, vacuum technology, vibration and acoustic engineering 
P170  Natural sciences and mathematics  Computer science, numerical analysis, systems, control 
Keywords
design, modelling, fracture mechanics, cracks, fatigue crack growth, elastoplasticity, boundary element method, finite element method, J integral, residual stresses, weld joint, fitness for purpose
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (3)
no. Code Name and surname Research area Role Period No. of publications
1.  01375  PhD Janez Kramberger  Mechanical design  Researcher  1998 - 1999  536 
2.  02046  PhD Iztok Potrč  Administrative and organisational sciences  Head  1998 - 1999  766 
3.  06213  Janko Zierer  Mechanical design  Researcher  1998 - 1999  46 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0795  University ob Maribor, Faculty of mechanical engineering  Maribor  5089638010  23,917 
Abstract
Highly loaded welded constructions and their mechanisms require a special treatment as early as during the design. The aim of research is the service life estimation based on sophisticated numerical simulations, experimental analyses of nonhomogenous segments with geometrical singularities and residual stress relieving during the welding process.Computer aided design is a widely used method. Next to the shape designing also the thermoelastic and elastoplastic segments of construction and mechanism parts with FEM and BEM are incorporated. For the maximal loaded construction parts also a fatigue elastoplastic analysis based on an isotropic and kinematic model is necessary. Since the service life is directly linked with the type and history of loading the thermal influences have to be taken into account. In moving mechanism parts, a contact problem analysis in the sense of mechanical loading and the exact service life prediction is also necessary. In treatment of weld points in construction, the residual stresses are numerically modelled. Scientific background of the proposed research is the assessment of allowable flaw size in load carried structures and their remaining service life-time.
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