Extremely low cycle fatigue tests on structural carbon steel and stainless steel

Nip, K.H.; Gardner, Leroy; Davies, Catrin M.; Elghazouli, A.Y.

doi:10.1016/j.jcsr.2009.08.004

Cited by 259 publications

(114 citation statements)

References 22 publications

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Section: Materials Modellingmentioning

confidence: 99%

“…In particular, it is important to assess the potential benefit of the relatively high tensile ductility and substantial strain hardening of stainless steel. Cyclic material tests have been conducted in a previous study by Nip et al [10] on structural carbon steel and stainless steel coupons cut from the members tested herein. Suitable strain-life relationships and material cyclic hardening parameters have been calibrated.…”

Section: Introductionmentioning

confidence: 99%

“…A series of strain-controlled fully-reversed cyclic axial tests on coupons cut from the test specimens was carried out to calibrate the material model. The values of the parameters have been determined in a previous study [10].The strength enhancement in the corner regions of the cold-formed sections was also considered. The strength enhancement were assumed to extend beyond the corner to a distance equal to the material thickness for the cold-formed carbon steel models [28] and two times the material thickness for the cold-formed stainless steel models [29,30].…”

mentioning

confidence: 99%

“…Details of the procedures and FE models have been reported previously [11]. The strain-life relationship for each of the materials tested in the current study was established though ultra low cycle fatigue material testing [10]. …”

mentioning

confidence: 99%

“…These tests have been carried out on coupons cut from the flat faces of hollow section members examined in a complementary study [10]. In Fig.…”

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confidence: 99%

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Cyclic testing and numerical modelling of carbon steel and stainless steel tubular bracing members

Nip

Gardner

Elghazouli

2010

Engineering Structures

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136

101

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Satisfactory behaviour of structures under severe seismic loading is usually largely dependent on the ability of key components to undergo significant inelastic deformations. In the case of concentrically braced frames, the critical elements are the diagonal bracing members which are expected to experience repeated cycles involving yielding in tension and member buckling in compression. The performance of bracing members depends on various factors, including local slenderness, global slenderness, material yield strength, section shape and end restraint [1]. Due to the difficulty in modelling the non-linearity and cyclic plasticity accurately, numerous experimental studies have been carried out to study the cyclic inelastic behaviour of bracing members.The interest of researchers in the early days was primarily in the load-displacement hysteretic response of the braces. Models were proposed to predict residual elongation at zero load, loss of compressive strength, the area under the hysteresis loops which represents the amount of energy dissipation, and other key characteristics of the hysteresis loops [2][3][4][5]. It was generally concluded [4,5] that global slenderness was the most important parameter influencing the hysteretic behaviour of braces. Slender members lost compressive resistance more rapidly than stocky members, resulting in fewer inelastic response cycles and lower amount of energy dissipation.More recently, attention has shifted to examination of the factors influencing the fracture life of bracing members. Through experimental testing, both global and local slenderness were found to be important factors in determining fracture life. Tang and Goel [6] proposed one of the first empirical equations for predicting the fracture life of bracing members, which suggests that fracture life is proportional to both the aspect ratio of the cross-section and the global member slenderness but inversely proportional to the square of the local slenderness. However, the validity of this prediction method is limited to bracing members in inverted V braced frames. Further developments [7][8][9] in the prediction of fracture life of brace members have utilised this basic proposed equation and generalised the applicability to bracing members in other concentrically braced frame configurations.A more general relationship was established following a comprehensive survey of the experimental cyclic behaviour of steel bracing members conducted by Tremblay [7], in which buckling resistance, post-buckling resistance in compression, tensile resistance, fracture life and a number of other properties from about 50 members were assessed. Shaback and Brown [8] carried out tests on square hollow section bracing members and calibrated a more sophisticated expression of fracture life, defined as Revised Manuscript Click here to view linked References 2 the weighted sum of normalised compressive and tensile deformation, in terms of global slenderness, local slenderness, aspect ratio of the cross-section and material yield strengt...

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Section: Materials Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

“…These tests have been carried out on coupons cut from the flat faces of hollow section members examined in a complementary study [10]. In Fig.…”

mentioning

confidence: 99%

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Cyclic testing and numerical modelling of carbon steel and stainless steel tubular bracing members

Nip

Gardner

Elghazouli

2010

Engineering Structures

Self Cite

136

101

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The Effect of Work‐Hardening and Heat Treatment of Mild‐Carbon Steel on Cyclic Deformation Behavior

Tober¹,

Ruback²,

Kuttig³

et al. 2013

Characterization of Minerals, Metals, and Materials 2013

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Cyclic loading in vertical stainless steel links

Chacón¹,

Martinez²

2021

ce papers

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Vertical links are dissipative devices in form of beam‐column segments that are included in eccentrically braced frames (EBF). Studies related to different configurations of links have been presented for carbon steel elements. Moreover, stainless steel is a nonlinear metallic material with particular appeal for its structural use due to a considerable amount of capabilities such as corrosion, circular life‐cycle, strength, ductility and aesthetics. Despite the increase on the use of stainless steel for structural elements in construction, the behavior of this material for structural purposes is not described as carbon steel in all applications. The elastic stiffness, maximum load, shear deformation capacity as well as the energy dissipation in long links are generally affected by the defined geometrical parameters. Due to the material nonlinearity, this influence may be affected considerably. In this paper, a numerical model aimed at depicting the cyclic behavior of vertical short and long links subjected to seismic lateral loads is presented. The model accounts for the material nonlinearity, the geometrical nonlinearity and the detailed definition of boundary conditions from the link connection to the EBF.

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Extremely low cycle fatigue tests on structural carbon steel and stainless steel

Cited by 259 publications

References 22 publications

Cyclic testing and numerical modelling of carbon steel and stainless steel tubular bracing members

Cyclic testing and numerical modelling of carbon steel and stainless steel tubular bracing members

The Effect of Work‐Hardening and Heat Treatment of Mild‐Carbon Steel on Cyclic Deformation Behavior

Cyclic loading in vertical stainless steel links

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