USING A SIMULATION PROGRAMME TO PREDICT DISTORTION OF CAST IRON CASTINGS

Pribulova, A.; Pokusova, M.
Abstract:
The increasing computing power of modern hardware systems opens new possibilities for simulating complex solidification phenomena as well as the overall simulation of the casting process. Although the simulation of filling and solidification can be considered to be state of the art, the simulation of residual stresses and distortion is still the object of intensive research. Distortion is one of often found problems of castings, especially large castings with thin sections such as frame shape or those with curved surfaces. To predict distortion, it is necessary to perform thermal and stress analysis of castings because distortions is the result of non-uniform cooling and closely related to the behavior of casting material. Distortion prediction is usually designated by displacement results directly obtained from stress analysis. For numerical simulation, the casting design has to be enmeshed to finite difference (FD) or finite element (FE) models for thermal and stress analysis, erformed using finite element modeling. The paper deals with the stresses in castings that cause casting distortion. The formation and course of distortion is monitored by means of a simulation program that allows their elimination or minimization on real castings.
SGEM Research areas:
Year:
2019
Type of Publication:
In Proceedings
Keywords:
distortion; simulation programme; casting; stress; crack
Volume:
19
SGEM Book title:
19th International Multidisciplinary Scientific GeoConference SGEM 2019
Book number:
2.1
SGEM Series:
International Multidisciplinary Scientific GeoConference-SGEM
Pages:
713-720
Publisher address:
51 Alexander Malinov blvd, Sofia, 1712, Bulgaria
SGEM supporters:
Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
Period:
30 June - 6 July, 2019
ISBN:
978-619-7408-79-9
ISSN:
1314-2704
Conference:
19th International Multidisciplinary Scientific GeoConference SGEM 2019, 30 June - 6 July, 2019
DOI:
10.5593/sgem2019/2.1/S07.093
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