The 971st  DANWAKAI(program)

Announcement of the 971st DANWAKAI

(Danwakai: ERI Holds “Danwakai”, a monthly meeting where
its members present their most recent academic and
technical achievements, on a Friday of every month.
Danwakai is open to the public.)

Date: Friday, 18 May 13:30-
Place: ERI Bldg.2, 5th floor, Conference room1


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1. 13:30-13:45
TITLE: Stress perturbation effects to earthquakes:
analytical model
AUTHOR: * Takahiro HATANO
SUMMARY: Theoretical expression for correlation between seismicity
and periodic stress modulation is derived based on the rupture nucleation process.

2. 13:45-14:00
TITLE: Evaluation of spectral fitting process toward
the robust stress drop estimates
AUTHOR: * Nana YOSHIMITSU, Bill ELLSWORTH and Gregory BEROZA
(Stanford University)
SUMMARY: Introduce our attempt to improve the accuracy of
stress drop estimation by using seismic waveform of induced
earthquakes in Oklahoma.

3. 14:00-14:15
TITLE: Atmospheric waves induced by volcanic eruptions that
reach the Ionosphere
AUTHOR: * Yuki NAKASHIMA・Kiwamu NISHIDA・Yosuke AOKI and
Kosuke HEKI (Hokkaido University)
SUMMARY: I would mainly discuss atmospheric waves induced
by volcanic eruptions that can propagate in the ionosphere.

4. 14:15-14:30
TITLE: Interfacial waves for two elastic layers in slipping and
in bonded contact
AUTHOR: * Ranjith KUNNATH
SUMMARY: New interfacial wave solutions are reported for
an interface between two finite elastic layers

5. 14:30-14:45
TITLE: Wave Propagation Simulation of Complex Multi-Material Problems
with Fast Low-Order Unstructured Finite-Element Meshing and Analysis
【Report on HPC Asia 2018 Best Paper】
AUTHOR: * Kohei FUJITA・Keisuke KATSUSHIMA(Nomura Research Institute)・
Tsuyoshi ICHIMURA, Masashi HORIKOSHI (Intel),
Kengo NAKAJIMA (Information Technology Center, The University of Tokyo),
Muneo HORI and Lalith MADDEGEDARA
SUMMARY: We show fast finite-element mesh generation and analysis method
for wave propagation problems, and show its application to
seismic response analysis of underground structures.

*Speaker