Sökning: id:"swepub:oai:lup.lub.lu.se:5677e2c7-fac4-42e3-8198-ec3c8b815777" >
A tool to model sho...
A tool to model short crack fatigue growth using a discrete dislocation formulation
-
- Bjerkén, Christina (författare)
- Lund University,Lunds universitet,Materialteknik,Institutionen för maskinvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Materials Engineering,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH,Department of Mechanical Engineering, Lund University
-
- Melin, Solveig (författare)
- Lund University,Lunds universitet,Mekanik,Institutionen för maskinvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Mechanics,Department of Mechanical Engineering Sciences,Departments at LTH,Faculty of Engineering, LTH,Department of Mechanical Engineering, Lund University
-
(creator_code:org_t)
- Elsevier, 2003
- 2003
- Engelska.
-
Ingår i: International Journal of Fatigue. - : Elsevier. - 1879-3452 .- 0142-1123. ; 25:6, s. 559-566
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- A method is presented that combines the modelling of cracks by distributed dislocation dipoles with developing plasticity represented by discrete dislocations moving along slip bands. Crack growth is due to the emission of dislocations from the crack tip along preferred slip planes. Eventual annihilation of dislocations occurs by reunion with the corresponding displacement steps of the crack surface. Crack surface overlap is not allowed. The equilibrium state for each load increment is solved iteratively, allowing various crack geometries. The method is applied to the problem of a short edge crack growing in mode I due to fatigue loading. It is shown that the development of a local plastic zone and the propagation of the crack can be monitored in detail.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Nyckelord
- short cracks
- dislocation dipoles
- discrete dislocations
- fatigue
- short cracks
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas