Published 2013 | Version v1
Miscellaneous Metadata-only

Simulation of microwave propagation and absorption in heterogeneous rocks

Creators

  • 1. Institute of Physics, Montanuniversität, Franz Josef Str. 18, AT-8700 Leoben (Austria)
  • 2. Institute of Mechanics, Montanuniversität, Franz Josef Str. 18, AT-8700 Leoben (Austria)
  • 3. Chair of Mining Engineering and Mineral Economics, Montanuniversität, Franz Josef Str. 18, AT- 8700 Leoben (Austria)

Description

Full text: A FDTD simulation study of the propagation of a microwave beam in a two-component model for hard rock with absorbing inclusions (discs) randomly distributed in a non-absorbing matrix is presented. Reflections at the discs/matrix interfaces and absorption in the discs lead to up to 20% diffuse scattering. Stripe-like patterns appear which are associated with coherent scattering. Conclusions for the microwave induced inhomogeneous heating and damage of rocks due to local thermal stresses are drawn and supported by preliminary experiments and thermo-mechanical FEM simulations. FEM results show stresses of the order of literature values for the component strengths. (author)

Part of:
Joint Annual Meeting of the Austrian Physical Society and the Swiss Physical Society together with the Austrian and Swiss Societies for Astronomy and Astrophysics

Additional details

Additional titles

Original title (English)
Gemeinsame Jahrestagung der Österreichischen Physikalischen Gesellschaft und der Schweizerischen Physikalischen Gesellschaft zusammen mit den Österreichischen und der Schweizerischen Gesellschaften für Astronomie und Astrophysik

Identifiers

URL
http://www.jku.at/conferences/content/e198715/;

Publishing Information

Publisher
Johannes Kepler University Linz
Imprint Place
Linz (Austria)
Imprint Title
Joint Annual Meeting of the Austrian Physical Society and the Swiss Physical Society together with the Austrian and Swiss Societies for Astronomy and Astrophysics
Imprint Pagination
vp.
Journal Page Range
p. 92

Conference

Title
Joint Annual Meeting of the Austrian Physical Society and the Swiss Physical Society together with the Austrian and Swiss Societies for Astronomy and Astrophysics
Original Conference Title
Gemeinsame Jahrestagung der Österreichischen Physikalischen Gesellschaft und der Schweizerischen Physikalischen Gesellschaft zusammen mit den Österreichischen und der Schweizerischen Gesellschaften für Astronomie und Astrophysik
Dates
3-6 Sep 2013
Place
Linz (Austria)

INIS

Country of Publication
Austria
Country of Input or Organization
Austria
INIS RN
45093086
Subject category
S58: GEOSCIENCES; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
ABSORPTION; COMPUTERIZED SIMULATION; DIFFUSE SCATTERING; MICROWAVE RADIATION; RANDOMNESS; ROCKS; THERMAL STRESSES; WAVE PROPAGATION
Descriptors DEC
COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; RADIATIONS; SCATTERING; SIMULATION; SORPTION; STRESSES

Optional Information

Notes
Imprint:Gemeinsame Jahrestagung der #Latin Capital Letter O With Diaeresis#sterreichischen Physikalischen Gesellschaft und der Schweizerischen Physikalischen Gesellschaft zusammen mit den #Latin Capital Letter O With Diaeresis#sterreichischen und der Schweizerischen Gesellschaften f#Latin Small Letter U With Diaeresis#r Astronomie und Astrophysik