[HTML][HTML] Experimental and numerical assessment of grout-filled tennis balls as seismic isolation bearings

AA Katsamakas, L Del Giudice, SI Reyes… - Engineering …, 2023 - Elsevier
This paper describes the behavior of a low-cost seismic isolator comprising a grout-filled
tennis ball rolling on concrete plates. The isolator could be used for isolating lightweight …

Re-using tennis balls as low-cost seismic isolation devices: Experimental Investigation

AA Katsamakas, M Chollet, S Eyyi… - … on Natural Hazards …, 2022 - research-collection.ethz.ch
Seismic isolation is one of the most effective methods of reducing earthquake-induced
damage to buildings. However, the associated high cost makes this technology non …

Shake-table testing of low-cost seismic isolation bearings based on rolling rubber spheres

AA Katsamakas, G Belser… - … Natural Hazards & …, 2022 - research-collection.ethz.ch
Seismic isolation is a well-established method of seismic protection. However, applications
of this technology in low-income countries are limited due to the associated high costs. An …

[HTML][HTML] Experimental characterization and constitutive modeling of thermoplastic polyurethane under complex uniaxial loading

SI Reyes, MF Vassiliou, D Konstantinidis - … of the Mechanics and Physics of …, 2024 - Elsevier
This paper presents the testing and constitutive modeling of a Thermoplastic Polyurethane
(TPU) compound used in commercial applications. The tested specimens were extracted …

[HTML][HTML] Validation of a three-dimensional finite element constitutive modeling approach for a thermoplastic polyurethane calibrated with uniaxial tests

SI Reyes, EL Lopez, MF Vassiliou - Engineering Structures, 2025 - Elsevier
This paper presents the three-dimensional finite element constitutive modeling validation for
a Thermoplastic Poly-Urethane (TPU) material. The material parameters are those given in a …

Lateral cyclic response of deformable rolling seismic isolators for low-income countries

AA Katsamakas, MF Vassiliou - Proceedings of the …, 2022 - research-collection.ethz.ch
This paper presents the compressive and lateral cyclic response of low-cost seismic
isolators comprising a deformable sphere rolling on concrete surfaces. The proposed use of …

[HTML][HTML] A comprehensive investigation into the effect of vertical component of ground motion on response of sliding unanchored blocks

Z Zhang, CG Lachanas, D Vamvatsikos, Y Zhou… - Engineering …, 2025 - Elsevier
This study aims to quantify the effect of the vertical component of ground motion on the
seismic response of sliding rigid blocks, in terms of maximum and residual displacements. A …

Low-cost and sustainable seismic isolation with re-used tennis balls: Lateral cyclic tests

AA Katsamakas, M Chollet, S Eyyi… - Proceedings of the …, 2022 - research-collection.ethz.ch
Seismic isolation is not applied in residential structures in the developing world due to the
associated high cost. The present study shows the preliminary experimental results of a …

Shake table testing and finite element modeling of a modular prefabricated concrete bridge‐like specimen accounting for geometry imperfections and additional …

AA Katsamakas, MF Vassiliou… - … Engineering & Structural …, 2024 - Wiley Online Library
This paper presents the shake table testing and finite element (FE) modeling of a modular
prefabricated concrete bridge‐like specimen. The specimen comprised four equal‐height …

Displacement‐based design procedures for rigid block isolation

G Destro Bisol, MJ DeJong… - Earthquake …, 2024 - Wiley Online Library
When subjected to earthquakes, many objects or structural elements behave like rocking
rigid blocks. Computer servers, medical shelves, art objects, statues, and electrical …