In this paper, the superelastic shape memory alloy (SMA) slit damper system as an alternative design approach for steel structures is intended to be evaluated with respect to inelastic behavior simulated by refined finite element (FE) analyses. Although the steel slit dampers conventionally used for aseismic design are able to dissipate a considerable amount of energy generated by the plastic yielding of the base materials, large permanent deformation may occur in the entire structure. After strong seismic events, extra damage repair costs are required to restore the original configuration and to replace defective devices with new ones. Innovative slit dampers fabricated by superelastic SMAs that automatically recover their initial conditions only by the removal of stresses without heat treatment are introduced with a view toward mitigating the problem of permanent deformation. The cyclically tested FE models are calibrated to experimental results for the purpose of predicting accurate behavior. This study also focuses on the material constitutive model that is able to reproduce the inherent behavior of superelastic SMA materials by taking phase transformation between austenite and martensite into consideration. The responses of SMA slit dampers are compared to those of steel slit dampers. Axial stress and strain components are also investigated on the FE models under cyclic loading in an effort to validate the adequacy of FE modeling and then to compare between two slit damper systems. It can be shown that SMA slit dampers exhibit many structural advantages in terms of ultimate strength, moderate energy dissipation and recentering capability.
Polymer, Journal
Free Download Construction Materials, Methods and Techniques Full Pages by madalynchwamadalynchwa - Issuu
Free Download Fundamentals of Building Construction: Materials and Methods Full Books by daliashort - Issuu
Text Material Images - Free Download on Freepik
Materials An Open Access Journal from MDPI
Full text access through Strategian - Strategian Science
Dopant-free hole transporting polymeric materials based on pyrroloindacenodithiophene donor unit for efficient perovskite solar cells - ScienceDirect
Investigation structure and properties of wire from the alloy of
Materials, Free Full-Text
Thermally Activated Delayed Fluorescent Dendrimers that Underpin High‐Efficiency Host‐Free Solution‐Processed Organic Light‐Emitting Diodes (Adv. Mater. 23/2022) - Sun - 2022 - Advanced Materials - Wiley Online Library
Materials, Free Full-Text, morenting auto spray
Materials An Open Access Journal from MDPI
Introductio ad philosophiam naturalem : Musschenbroek, Petrus van