Results 51 to 60 of about 495,657 (263)

A Comparative Study of Three Constitutive Models concerning Thermo-Mechanical Behavior of Q345 Steel during Hot Deformation

open access: yesCrystals, 2022
The Gleeble-3800 thermal simulator was used to perform hot compression experiments on Q345 steel at a temperature of 1123~1373 K, a strain rate of 0.01~10 s−1, and 60% deformation.
Guanghui Zhao   +5 more
doaj   +1 more source

Calorimetric consequences of thermal softening in Johnson–Cook’s model [PDF]

open access: yes, 2013
At high loading rates, the development of adiabatic shear bands in metals is conventionally attributed to the strong interactions induced by viscoplastic dissipation within the bands and thermal softening effects.
CHRYSOCHOOS, André, RANC, Nicolas
core   +4 more sources

Phenomenological and Physically Based Modeling of Flow Stress and Strengthening Mechanism of Inconel 718

open access: yesAdvanced Engineering Materials, EarlyView.
Nickel‐based alloys are widely used in high‐temperature applications due to their excellent mechanical strength and oxidation resistance. However, properties such as high‐temperature strength and pronounced work‐hardening make them difficult to machine.
Soheil Rooein   +2 more
wiley   +1 more source

A Comparative Study on Arrhenius and Johnson–Cook Constitutive Models for High-Temperature Deformation of Ti2AlNb-Based Alloys

open access: yesMetals, 2019
In order to thoroughly understand the quantitative relationships between the flow stress and deformation conditions for Ti2AlNb-based alloys at elevated temperatures, the Arrhenius and Johnson⁻Cook constitutive models are analyzed and identified on
Zhubin He, Zhibiao Wang, Peng Lin
doaj   +1 more source

Simulasi Numerik Perilaku Tumbukan Pelat Baja Terhadap Proyektil [PDF]

open access: yes, 2013
Simulasi numerik tiga dimensi untuk mempelajari ketahanan balistik pada target ulet yang bertumbukan dengan proyektil normal telah dilakukan. Pada penelitian ini target pelat baja Weldox 460 E dengan tebal 12 mm dimodelkan bertumbukan ...
Haryanto, Ismoyo   +4 more
core  

Vertical Moist Thermodynamic Structure and Spatial–Temporal Evolution of the MJO in AIRS Observations [PDF]

open access: yes, 2006
The atmospheric moisture and temperature profiles from the Atmospheric Infrared Sounder (AIRS)/Advanced Microwave Sounding Unit on the NASA Aqua mission, in combination with the precipitation from the Tropical Rainfall Measuring Mission (TRMM), are ...
Fetzer, Eric J.   +5 more
core   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney   +2 more
wiley   +1 more source

Finite element modelling for temperature, stresses and strains calculation in linear friction welding of TB9 titanium alloy

open access: yesJournal of Materials Research and Technology, 2019
In the present paper, finite element method (FEM) simulation of linear friction welding (LFW) TB9 titanium alloy was carried out using ABAQUS software.
Xiawei Yang   +7 more
doaj   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Johnson-Cook model for TC4 titanium alloy based on compression experiment

open access: yesMetalurgija, 2022
To obtain the exact mechanical properties of TC4 titanium alloy, the compression experiments on TC4 titanium alloy at different strain rates (10-2,10-3,10-4 s-1) were performed at room-temperature on the MTS-810 electrohydraulic servo material testing ...
Z. L. Zhao   +4 more
doaj  

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