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2014年 第8卷 第2期

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《结构与土木工程前沿（英文）》 >> 2014年 第8卷 第2期 doi: 10.1007/s11709-014-0245-y

Cyclic stress-strain behavior of structural steel with yield-strength up to 460 N/mm

1. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China.2. Architecture Design & Research Institute of Tongji University (Group) Co. Ltd., Shanghai 200092, China.3. School of Engineering, University of Warwick, Coventry CV4 7AL, UK

发布日期： 2014-05-19
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This paper presents a constitutive model based on Ramberg-Osgood equation to describe the hysteresis material behavior of structural carbon steel with nominal yield strength between 235 to 420 N/mm . The proposed model was calibrated against a series of cyclic material tests with strain amplitude varying from 0.5% to 2.0%. A simple relationship between the modular parameter and the yield strength was proposed. The calibrated Ramberg-Osgood model revealed excellent agreement with the experimental results and captured further the experimental behavior of test specimens with nominal yield strength of 460 N/mm . The proposed constitutive model was also adopted in conjunction with the combined kinematic/isotropic materials description in ABAQUS to mimic a full scale experimental test under cyclic loading. The numerical results revealed close agreement with the experimental observations.

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