Browsing by Subject "High strength steel"
Now showing items 1-17 of 17
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Buckling and classification of high-strength steel CHS tubular members under axial compression and bending
(2012)EN 1993-1-1 provisions classify high-strength steel CHS members with relatively low values of D/t ratio as Class 3 or 4, so that their strength is based on elastic behavior only, neglecting their capability of sustaining ... -
Composition and processing design of medium-Mn steels based on CALPHAD, SFE modeling, and genetic optimization
(2020)Medium-Mn steels are being thoroughly investigated as potential candidates for the 3rd generation of advanced high strength steels. Despite the wide experimental work, limited attempts have been presented to systematically ... -
Exploitation of the TRIP effect for the development of formable, fracture and fatigue resistant steels for automotive applications
(2009)The present paper summarizes recent and on-going work on the exploitation of TRansformation-Induced Plasticity (TRIP) in an effort to develop automotive steels which would possess high-strength combined with high formability ... -
Fatigue and fracture behavior of pearlitic Grade 900A steel used in railway applications
(2016)In overloaded railway networks, rail surface defects developed under rolling contact fatigue (RCF) if left untreated, may propagate to the bulk of the rail and become critical for its structural integrity. To avoid critical ... -
Fatigue behavior and retained austenite transformation of Al-containing TRIP steels
(2016)In material selection for the design of advanced lightweight automotive steel components, fatigue performance is of particular significance. High strength TRIP steels offer very good cyclic behavior, especially under cyclic ... -
High-strength steel tubular welded joints under extreme loading conditions
(2016)The present work examines the behavior of high-strength steel welded tubular connections subjected to extreme loading conditions, focusing on their monotonic and low-cycle fatigue performance. The work consists of two ... -
Integrated material modelling on the crashworthiness for automotive high-strength steel sheets
(2017)The aim of this study is to investigate the impact of microstructure features on the crashworthiness for automotive high-strength steel sheets by using multiscale modelling approach on different length scales, which provides ... -
Interplay between deformation behavior and mechanical properties of intercritically annealed and tempered medium-manganese transformation-induced plasticity steel
(2016)We elucidate the mechanistic contribution of the interplay between microstructural constituents and plastic deformation behavior of a hot rolled Fe-0.18C-10.62Mn-4.06Al-0.03Nb transformation-induced plasticity (TRIP) steel ... -
Multi-phase field modeling in TRIP steels: Distributed vs. average stability and strain-induced transformation of retained austenite
(2022)Austenite stability and dispersion are key parameters controlling the strain-induced transformation of Retained Austenite (RA) to martensite in TRIP steels. Stabilization is achieved through a two-stage heat-treatment ... -
Numerical implementation of bounding-surface model for simulating cyclic inelastic response of metal piping components
(2021)The present paper describes the numerical implementation of the bounding-surface cyclic-plasticity model in a finite element environment, suitable for simulating the structural behavior of metal components subjected to ... -
Probing the Evolution of Retained Austenite in TRIP Steel During Strain-Induced Transformation: A Multitechnique Investigation
(2018)X-ray diffraction analysis, magnetic force microscopy, and the saturation magnetization method have been employed to study the evolution of the percentage and size of retained austenite (RA) particles during strain-induced ... -
Strength and stability of High-Strength Steel tubular beam-columns
(2012)In this study, the structural behavior of high-strength steel tubular CHS seamless structural members under combined loading of axial compression and bending is examined. The work is mainly numerical supported by a series ... -
Structural behavior and design of high-strength steel welded tubular connections under extreme loading
(2020)The present work is motivated by the increasing need for cost-efficient solutions in offshore structural systems for wind energy production and for improvement of their structural performance. The structural behavior and ... -
Structural performance of TS590 high-strength steel welded tubular joints under extreme bending loading
(2012)The present work examines the behavior of welded tubular connections made of high-strength steel and subjected to extreme loading conditions focusing on their low-cycle fatigue performance and highlighting the benefits of ... -
Structural resistance of high-strength steel CHS members
(2017)The structural resistance of high-strength steel seamless tubular beam-columns of circular cross-section subjected to axial compression and bending loading is investigated, using experimental testing and numerical finite ... -
TRIP steels: A multiscale computational simulation and experimental study of heat treatment and mechanical behavior
(2020)A multiscale investigation of the microstructure and the mechanical behavior of TRIP steels is presented. A multi-phase field model is employed to predict the microstructure of a low-alloy TRIP700 steel during a two-stage ... -
Ultra low-cycle fatigue performance of S420 and S700 steel welded tubular X-joints
(2019)The present study is motivated by the need for improving the fatigue performance of offshore wind energy structural systems. In particular, the ultra low-cycle fatigue performance of welded tubular X-joints is examined, ...