Results 81 to 90 of about 5,109 (222)

Effect of Strain Hardening on Increase in Collapse Pressure during the Manufacture of ERW Pipe

open access: yesApplied Sciences, 2020
Plastic deformation during the manufacture process of electric resistance welded (ERW) pipe determines the stress–strain relationship of the steel pipe, which affects the collapse pressure of offshore pipelines.
Seong-Wook Han   +3 more
doaj   +1 more source

Non-proportional deformation paths for sheet metal: experiments and models [PDF]

open access: yes, 2009
For mild steel, after significant plastic deformation in one direction, a subsequent deformation in an orthogonal direction shows a typical stress overshoot compared to monotonic deformation. This phenomenon is investigated experimentally and numerically
Boogaard, A.H. van den, Riel, M. van
core   +2 more sources

Novel Capacity‐Adjustable BRB for Improving the Seismic Performance of Tall‐Pier Bridges

open access: yesStructural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
Tall‐pier bridges are commonly employed in mountainous or deep‐water regions. Ensuring the postearthquake serviceability is crucial for the seismic design of tall‐pier bridges. Buckling‐restrained braces (BRBs), serving as prevalent replaceable energy‐dissipating components, can effectively enhance the seismic performance of such bridges.
Kaiqi Lin   +5 more
wiley   +1 more source

Irreversible evolution of dislocation pile-ups during cyclic microcantilever bending

open access: yesMaterials & Design
In single crystals, plastic deformations are predominantly governed by dislocation movement and interactions. The group of dislocations that creates strain gradients, known as geometrically necessary dislocations (GNDs), also deterministically ...
Dávid Ugi   +7 more
doaj   +1 more source

Key Factors of Stress Corrosion Cracking of X70 pipeline Steel in Simulated Deep-sea Environment: Role of Localized Strain and Stress

open access: yesInternational Journal of Electrochemical Science, 2018
The effect of the localized strain and stress on the stress corrosion cracking (SCC) of X70 steel in simulated seawater at 500 m depth was investigated by performing finite element analysis, electrochemical measurements, slow strain rate tensile (SSRT ...
Yong Li, Longfei Song, Feilong Sun
doaj   +1 more source

Numerical simulation of the mechanical response during strain path change: application to Zn alloys. [PDF]

open access: yes
The microstructure-based hardening model (Beyerlein and Tome, 2007), that accounts for the dislocation reversal-related mechanisms and the cut-through effect, is extended to HCP metals.
Barlat, F   +4 more
core   +1 more source

Low‐Cycle Fatigue Performance of Directed Energy Deposited and Conventionally Manufactured Hybrid Gas Tungsten Arc‐Welded Duplex Stainless Steel Joints

open access: yesAdvanced Engineering Materials, Volume 26, Issue 23, December 2024.
The present work reveals novel results on the mircrostructure evolution and in particular the structural integrity of gas tungsten arc‐welded joints of directed energy deposition arc and as‐rolled standard duplex stainless steels compared to counterparts of the nonwelded base material as well as similar weldments of as‐rolled sheets.
Thomas Wegener   +3 more
wiley   +1 more source

Rotation capacity of I‐shaped beams collapsed with lateral‐torsional buckling under reversed axial forces

open access: yesJapan Architectural Review, 2019
I‐shaped beams installed in a braced structure are subjected to reversed axial forces during earthquakes. Previously, we have derived the evaluation index and formulae for beams that collapsed with dominant local buckling.
Atsushi Suzuki   +2 more
doaj   +1 more source

Application of homogeneous potentials for the modeling of the Bauschinger effects in ultra low carbon steel [PDF]

open access: yes, 2011
In this work, an approach is proposed for the description of the plastic behavior of materials subjected to multiple or continuous strain path changes. In particular, although it is not formulated with a kinematic hardening rule, it provides a reasonable
Barlat Frederic Gerard   +1 more
core   +1 more source

Uniaxial material model with softening for simulating the cyclic behavior of steel tubes in concrete‐filled steel tube beam‐columns

open access: yesEarthquake Engineering &Structural Dynamics, Volume 53, Issue 13, Page 4032-4053, 25 October 2024.
Abstract This paper presents a new uniaxial constitutive material formulation with softening for simulating the inelastic behavior of steel rectangular tubes in concrete‐filled steel tube (CFST) members. The primary behavioral characteristics of the steel tube in CFST members are isolated and pronounced through a carefully designed experimental ...
Shiye Wang   +2 more
wiley   +1 more source

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