PSI - Issue 78

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 78 (2026) 1008–1015

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers Keywords: Maurer SHARK ® Hysteretic Damper; low-cycle fatigue (LCF); simulation-based fatigue life prediction; Finite Element Method (FEM) Abstract Maurer SHARK ® Hysteretic Damper is a simple yet highly e ffi cient steel hysteretic damper that dissipates seismic energy through designed plastic deformation, o ff ering e ff ective protection against earthquake-induced damage. In this contribution, to study the reliability of the designed SHARK ® damper during seismic event, Low Cycle Fatigue (LCF) Analysis is applied to evaluate the fatigue performance of the damper, ensuring the damper providing consistent protection during the whole earthquake. Finite Element Method (FEM) simulations are conducted to numerically analyze the low-cycle fatigue (LCF) behavior of the damper. Experimental tests were also conducted, which validated the simulation-based fatigue life predictions with a deviation of 5.6% compared with simulation. Crack initiation is observed in the experiment; however, the damper still maintains su ffi cient energy dissipation capacity after the crack initiation, continuing to provide robust protection to the structure during seismic events. By combining simulation and experimental validation, this study verifies the Maurer SHARK ® Hysteretic Damper’s robustness and readiness for real-world application. The results support the SHARK ® damper as a reliable solution for seismic energy dissipation, contributing to the overall safety and durability of critical infrastructure. XX ANIDIS Conference Ensuring seismic resilience: low cycle fatigue analysis of Maurer SHARK ® Damper Yangwen Zhang a, ∗ , Frederik Bomholt a , Ebert Torsten a a MAURER SE, Frankfurter Ring 193, Munich 80807, Germany

1. Introduction

A Metallic hysteresis damper is a passive energy dissipation device widely used to enhance the seismic performance of buildings and infrastructure. It operates by absorbing and dissipating seismic energy through the plastic deformation of steel components during strong earthquakes. By concentrating inelastic seismic demands within these carefully designed devices, which possess adequate sti ff ness, strength, and ductility, the overall structural performance can be improved, while the inelastic deformation demands and potential damage to the primary structural system are significantly reduced (Titirla (2023)).

∗ Corresponding author. Tel.: + 49 89 32394-243. E-mail address: y.zhang@maurer.eu

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of XX ANIDIS Conference organizers 10.1016/j.prostr.2025.12.129