Cyclic Mechanical Behavior of Two Sandy Soils Used as Heat Storage Media

Henok Hailemariam and Frank Wuttke
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Henok Hailemariam: Geomechanics and Geotechnics Group, Kiel University, Ludewig-Meyn-Straße 10, 24118 Kiel, Germany
Frank Wuttke: Geomechanics and Geotechnics Group, Kiel University, Ludewig-Meyn-Straße 10, 24118 Kiel, Germany

Energies, 2020, vol. 13, issue 15, 1-12

Abstract: In this research, the cyclic mechanical behavior of two heat storage sandy soils is experimentally studied using a cyclic thermo-mechanical triaxial device. The results of the tests, which were performed under controlled temperature conditions between 20 and 60 °C, show a significant dependence of the mechanical response of the sandy soils with the amplitude of the cyclic loading and medium temperature. The mechanical performance and accumulation of plastic strains of the soils with an increasing number of loading cycles are discussed in view of the intrinsic soil behavior.

Keywords: thermal energy storage; sandy soils; cyclic mechanical loading; temperature (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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