Results 91 to 100 of about 920 (267)

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

open access: yessteel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi   +3 more
wiley   +1 more source

Analysis of time‐dependent mechanical behavior of polyethylene

open access: yesSPE Polymers
New data analysis based on a spring‐dashpot model is developed to provide very close simulation of stress variation in polyethylene (PE) when subjected to a multi‐relaxation (MR) test.
P.‐Y. Ben Jar
doaj   +1 more source

Failure Strain and Related Triaxiality of Aluminum 6061-T6, A36 Carbon Steel, 304 Stainless Steel, and Nitronic 60 Metals, Part I: Experimental Investigation

open access: yesMetals
The objective of this study is to develop failure-limit material models for Aluminum 6061-T6, A36 Carbon Steel, 304 Stainless Steel, and Nitronic 60 metals, based on parameters of plastic equivalent strain (failure strain) and stress triaxiality.
Ron Harwell   +2 more
doaj   +1 more source

Damage Investigation of the Preform Operations for the Production of Rings for Ring Rolling

open access: yessteel research international, EarlyView.
Void evolution during the preforming operations of two industrial ring rolling process routes is investigated by combining metallographic characterization with a two‐scale finite element simulation approach. The results reveal that, despite differing initial void conditions, the preforming operations can be designed to effectively influence void ...
Laurenz Kluge   +6 more
wiley   +1 more source

Experimental and theoretical investigation of longitudinal tunnel lining joints with confining reinforcement

open access: yesStructural Concrete, EarlyView.
Abstract Precast reinforced concrete segmental linings are frequently used in modern tunneling. In these linings, the longitudinal joints typically have a reduced contact cross‐section and thus often govern the design, particularly in tunnels under high hydrostatic pressure or crossing squeezing or swelling ground with correspondingly high ...
Fabian Morger   +2 more
wiley   +1 more source

Dual-scale modeling of temperature-dependent deformation and damage in martensitic steels

open access: yesJournal of Materials Research and Technology
Understanding the deformation and failure of martensitic steels under extreme service conditions is critical for ensuring the safety and reliability of industrial tooling and structural components.
Zhen Zhang   +2 more
doaj   +1 more source

Performance enhancement of reinforced concrete columns using stainless steel and galvanized steel plates: Experimental and numerical investigation

open access: yesStructural Concrete, EarlyView.
Abstract This study introduces an innovative approach to strengthening defected reinforced concrete (RC) columns using externally bonded stainless steel and galvanized steel plates. Unlike conventional strengthening methods, this technique replaces traditional transverse stirrups with steel sheets, providing enhanced confinement and ductility.
Ahmed Hamoda   +5 more
wiley   +1 more source

FINITE ELEMENT STUDY OF VOID BEHAVIOR UNDER LOW STRESS TRIAXIALITY

open access: yesJixie qiangdu, 2017
Based on finite element simulation,a 3D cell model subjected to low stress triaxiality,with a spherical void located in center was developed. The distribution rule of stress and strain was investigated,as well as the developing trend of volume of void ...
LIU MeiMei, CHEN JianJun, PAN HongLiang
doaj  

Flexural performance of concrete‐filled steel tubular beams with wood chip aggregate

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the flexural performance of concrete‐filled steel tubular (CFST) beams with partial replacement of aggregates by wood chips (0%–25%) through experimental and numerical analysis. This study is novel in that it experimentally and numerically investigates the flexural behavior of CFST beams with partial replacement of ...
Mizan Ahmed   +6 more
wiley   +1 more source

Investigation on fracture behavior and prediction model of AA2219-T6 under the coupled effects of temperature and stress state

open access: yesJournal of Materials Research and Technology
This study systematically investigates the coupled effects of temperature and stress state on the ductile fracture behavior of AA2219-T6. Tensile tests were conducted on specimens with various geometries (TR5, TR10, TD10, and SH) at room temperature, 150 
Cong Liu   +5 more
doaj   +1 more source

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