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024 8 $aGOVPUB-C13-808dedd6b03cf16c1c8ac5c7bd714dcc
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035   $a(OCoLC)958885835
035   $a(EXLCZ)995470000002482222
100   $a20160921d2016      ua             0
101 0 $aeng
181   $2rdacontent
182   $2rdamedia
183   $2rdacarrier
200 10$aTemperature-dependent material modeling for structural steels $eformulation and application /$fMina Seif; Joseph Main; Jonathan Weigand; Fahim Sadek; Lisa Choe; Chao Zhang; John Gross; William Luecke; David McColskey
210  1$aGaithersburg, MD :$cU.S. Dept. of Commerce, National Institute of Standards and Technology,$d2016.
215   $a1 online resource (145 pages) $cillustrations (color)
225 1 $aNIST technical note ;$v1907
300   $aApril 2016.
300   $aContributed record: Metadata reviewed, not verified. Some fields updated by batch processes.
300   $aTitle from PDF title page (viewed April 30, 2016).
320   $aIncludes bibliographical references.
330 3 $aThis report presents the formulation and application of a newly developed temperature-dependent material model for structural steels. First it presents a model for computing the stress-strain behavior of structural steel for conditions appropriate to fire. The model accounts for the change in yield strength with temperature, the change in the amount of post-yield strain hardening with both temperature and room-temperature yield strength, and the change in strength with increasing strain rate. Then, this NIST stress-strain model is used for predicting flexural buckling of steel columns subjected to elevated temperature. The main focus of this part of the study is to evaluate the applicability of the NIST model for predicting the behavior of steel gravity columns at elevated temperatures using the finite-element method. Besides the stress-strain behavior, another key issue in evaluating the response of structural systems to fire effects is the modeling of fracture, which is required to capture failure modes such as tear out in connection plates and bolt shear. Fracture can be simulated in explicit finite element analysis using element erosion, in which elements are removed from the analysis when specified failure criteria are satisfied. A finite element material modeling methodology is presented for structural steels and bolts at elevated temperatures that incorporates erosion-based modeling of fracture. The failure criterion was calibrated against high- temperature experimental data on elongation of tensile coupons at fracture, and its dependence on temperature and mesh size was investigated. Finally, these temperature-dependent material models for structural steel and bolts that incorporate erosion-based modeling of fracture were implemented to study the performance of steel moment frame assemblies at elevated temperatures.
517   $aTemperature-dependent material modeling for structural steels 
606   $aHigh temperatures
606   $aSteel, Structural$xTesting
615  0$aHigh temperatures.
615  0$aSteel, Structural$xTesting.
700   $aSeif$b Mina$01387639
701   $aChoe$b Lisa$01387640
701   $aGross$b John$0131816
701   $aLuecke$b William$01387641
701   $aMain$b Joseph$01387642
701   $aMcColskey$b David$01387643
701   $aSadek$b Fahim$01387644
701   $aSeif$b Mina$01387639
701   $aWeigand$b Jonathan$01387645
701   $aZhang$b Chao$0672955
712 02$aNational Institute of Standards and Technology (U.S.).$bEngineering Laboratory.$bMaterial Measurement Laboratory.
801  0$bNBS
801  1$bNBS
801  2$bGPO
801  2$bNBS
906   $aBOOK
912   $a9910711380603321
996   $aTemperature-dependent material modeling for structural steels$93437717
997   $aUNINA