A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Residual mechanical properties of high strength steel bolts subjected to heating-cooling cycle
AbstractThis paper presents results from experimental studies on residual mechanical properties of Grade 8.8 bolts exposed to elevated temperatures. The residual mechanical properties including stress-strain response, elastic modulus, yield and ultimate strengths, as well as failure modes of bolts are evaluated after exposure to various target temperatures. The effect of temperature level, chemical composition of feedstock steels and heat treatment characteristics in production process of Grade 8.8 bolts on residual mechanical properties is studied. Data from the tests indicate that bolts experience rapid reduction in residual strength when heated to temperatures beyond 400°C and reaches to 50% of ultimate strength after exposure to 800°C. Apart from temperature amount of carbon content in steel and tempering temperature in bolt production process significantly influence residual properties of Grade 8.8 bolts. Data from the tests is utilized to propose a set of predictive equations for evaluating temperature dependent residual mechanical properties of Grade 8.8 bolts.
HighlightsResidual mechanical properties of high strength steel bolts is presented.Effect of heating-cooling cycle on mechanical properties of bolts is discussed.Test data is utilized to propose equations for residual mechanical properties of bolts.
Residual mechanical properties of high strength steel bolts subjected to heating-cooling cycle
AbstractThis paper presents results from experimental studies on residual mechanical properties of Grade 8.8 bolts exposed to elevated temperatures. The residual mechanical properties including stress-strain response, elastic modulus, yield and ultimate strengths, as well as failure modes of bolts are evaluated after exposure to various target temperatures. The effect of temperature level, chemical composition of feedstock steels and heat treatment characteristics in production process of Grade 8.8 bolts on residual mechanical properties is studied. Data from the tests indicate that bolts experience rapid reduction in residual strength when heated to temperatures beyond 400°C and reaches to 50% of ultimate strength after exposure to 800°C. Apart from temperature amount of carbon content in steel and tempering temperature in bolt production process significantly influence residual properties of Grade 8.8 bolts. Data from the tests is utilized to propose a set of predictive equations for evaluating temperature dependent residual mechanical properties of Grade 8.8 bolts.
HighlightsResidual mechanical properties of high strength steel bolts is presented.Effect of heating-cooling cycle on mechanical properties of bolts is discussed.Test data is utilized to propose equations for residual mechanical properties of bolts.
Residual mechanical properties of high strength steel bolts subjected to heating-cooling cycle
Kodur, Venkatesh (author) / Yahyai, Mahmood (author) / Rezaeian, Abbas (author) / Eslami, Mohamadreza (author) / Poormohamadi, Alireza (author)
Journal of Constructional Steel Research ; 131 ; 122-131
2017-01-01
10 pages
Article (Journal)
Electronic Resource
English
Residual mechanical properties of high strength steel bolts subjected to heating-cooling cycle
| Online Contents | 2017
Residual mechanical properties of high strength steel bolts subjected to heating-cooling cycle
| British Library Online Contents | 2017
Residual Mechanical Properties of High-Strength Steel Bolts after Exposure to Elevated Temperature
| British Library Online Contents | 2018