Computational & Technology Resources
an online resource for computational,
engineering & technology publications |
|
Civil-Comp Proceedings
ISSN 1759-3433 CCP: 111
PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON PARALLEL, DISTRIBUTED, GRID AND CLOUD COMPUTING FOR ENGINEERING Edited by:
Paper 37
Implementation of Parallel Computations on 3-D Enriched Finite Elements Used for Fracture Analyses M.F. Yaren and A.O. Ayhan
Department of Mechanical Engineering, Sakarya University, Sakarya, Turkey M.F. Yaren, A.O. Ayhan, "Implementation of Parallel Computations on 3-D
Enriched Finite Elements Used for Fracture Analyses", in , (Editors), "Proceedings of the
Fifth International Conference
on
Parallel, Distributed, Grid and Cloud Computing
for Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 37, 2017. doi:10.4203/ccp.111.37
Keywords: fracture mechanics, parallel computing, element stiffness matrix, FCPAS,
OpenMP.
Summary
The finite element method is a very useful and easy technique to calculate stresses.
Because of singularity, conventional finite element method does not yield adequate
results at the crack tip for fracture mechanics problems without using some special
techniques. Enriched element method is used in FCPAS in serial computing mode.
Because of much higher stress gradients near the crack tip, number of integration
points used to integrate enriched elements is much higher than regular elements. Thus,
depending on the number of elements around the crack front, computations and assembly
of enriched element stiffness matrices can be very time consuming. In this
paper, element stiffness matrix calculation subroutine is modified to allow parallel
computing. OpenMP‘s shared memory programming routines are used to be able to
compute element stiffness matrices in a parallel manner. Eleven different cases of
fracture mechanics problems are solved by parallelized version and compared with
serial processing.
purchase the full-text of this paper (price £22)
go to the previous paper |
|