2024-03-29T15:02:45Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02002430
2023-08-03T05:34:46Z
1642838163960:1642838338003
1642838403551:1642838406414
Numerical fault simulation in Himalayas with 2D finite element method
Howladar, M.Farhad
Hayashi, Daigoro
林, 大五郎
numerical simulation
fault
Himalaya
finite element method
The nature of the stress field in the Himalaya is examined by the 2D finite element method where linear elastic rheology and plain strain condition are assumed. The Mohr-Coulomb failure criterion has been adopted to analyze the relationship between stress distribution and fault formation. Two profile models are prepared and convergent displacement is imposed on them along the NE-SW horizontal direction. The convergent displacement and physical properties of the rock layer control the distribution,orientation,magnitude and intensity of the stress and fault development. According to the calculated stress pattern,thrust faults are expected to develop in the central Himalaya (model A). Normal and some thrust faults take place in the north-western Himalaya (model B). The results from our numerical experiment are in agreement with those from the seismicity and focal mechanism solution of earthquakes and also with those of M.M.Alam and D.Hayashi (Bull.Fac.Sci.Univ. Ryukyus, 73, 15, 2002) in the central Himalaya.
論文
http://purl.org/coar/resource_type/c_6501
国立極地研究所
National Institute of Polar Research
VoR
http://hdl.handle.net/20.500.12000/2894
1344-3194
AA1130866X
Polar Geoscience
16
257
243
eng
open access