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Indexed by:期刊论文

Date of Publication:2017-01-01

Journal:Frattura ed Integrita Strutturale

Included Journals:EI

Volume:11

Issue:40

Page Number:149-161

Abstract:Under cyclic load, local fatigue damage will occur in the metal damper widely used in the shear wall. This will deteriorate the stiffness of damper and weaken the hysteresis behaviour. The present paper proposed a new and easy method to manufacture kinds of coupling beam dampers. A thermography-based experiment was used to study the energy dissipation and damage accumulation during fatigue process of the metal damper. Based on the temperature variation related to fatigue damage process, the relationship between the plastic deformation and thermal energy dissipation was quantitatively established. Besides, the relationships between the temperature increase to damage accumulation and mechanical load were analyzed systematically. © 2017, Gruppo Italiano Frattura. All rights reserved.