Results 11 to 20 of about 696,781 (263)

Effects of Unloading on Subsequent Yielding Behavior in 304 Stainless Steel

open access: yesFrontiers in Materials, 2021
Forming operations are known to be complex, involving many strain states, strain rates, temperatures, strain paths, and friction conditions. Material properties, such as strength and ductility, are large drivers in determining if a material can be formed
Melissa Thrun   +3 more
doaj   +1 more source

Investigation on Plastic Flow Behaviors of FCC Polycrystalline Aluminum under Pre-Cyclic Tension-Compression Loading: Experiments and Crystal Plasticity Modeling

open access: yesNanomaterials, 2021
The plastic flow behaviors of FCC polycrystalline aluminum after pre-cyclic tension-compression deformation are mainly investigated in tension–torsion stress space by the physically based crystal plasticity model introducing a back-stress.
Damin Lu, Keshi Zhang, Guijuan Hu
doaj   +1 more source

Evaluation method with finite-element analysis for bending rupture limit of line pipe with high design factor

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This study focused on ruptures due to bending deformation of steel pipe that is operated with a high design factor. The design factor refers to the ratio of the hoop stress from internal pressure to the yield strength of pipe material.
Masaki MITSUYA
doaj   +1 more source

3D limit analysis of masonry pavilion domes on octagonal drum subjected to vertical loads

open access: yesFracture and Structural Integrity, 2020
Within the framework of limit design applied to masonry structures, this paper aims at analyzing the different behavior of a pavilion dome according to the adopted construction and reinforcement technologies.
Carlalberto Anselmi   +2 more
doaj   +1 more source

Surface construction for orthrotropic perfectly elastic-plastic Murnaghan material

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021
The problem of constructing a yield surface is described. The magnitude of the stress velocity potential is explained graphically. The parameters of an elastic-plastic process are introduced: a modified R.
O. L. Shved
doaj   +1 more source

Regularized Yield Surfaces for Crystal Plasticity of Metals

open access: yesCrystals, 2020
The rate-independent Schmid assumption for a metal crystal results in a yield surface that is faceted with sharp corners. Regularized yield surfaces round off the corners and can be convenient in computational implementations.
Bjørn Holmedal
doaj   +1 more source

DETERMINATION OF MATERIAL PARAMETERS OF SHEET METALS USING THE HYDRAULIC BULGE TEST

open access: yesActa Metallurgica Slovaca, 2013
Hydraulic bulging experiments are performed in order to evaluate the mechanical parameters of cold rolled steel (DC04) and aluminium alloy (EN AW 6016-T4) sheet materials.
Lucian Lăzărescu
doaj   +1 more source

Effect of Residual Stress in Surface Layer on Plastic Yield Inception

open access: yesApplied Sciences, 2022
This study aimed to acquire a comprehensive explanation on how the residual stress in the surface layer affects the contact behavior of solids. Plastic yield inception of residual stressed surface layer/substrate system during contact is simulated using ...
Shujun Zhou   +3 more
doaj   +1 more source

Seed yield and yield attributes of onions as influenced by surface cutting, weight, and planting date of mother bulbs [PDF]

open access: yesJournal of Horticulture and Postharvest Research, 2022
Purpose: This investigation aimed to study the effect of mother bulb surface cutting, weight and date of planting on plant growth, seed yield and seed quality of onions.
Ahmad jawid Zamany   +2 more
doaj   +1 more source

Crystal plasticity simulation of macroscopic yielding behavior of ultrafine-grained aluminum

open access: yesNihon Kikai Gakkai ronbunshu, 2016
High-strength, light-weight metal materials are required to improve safety and reduce transportation cost. Ultrafine-grained metals produced by severe plastic deformation have attracted interest as high-strength materials.
Yoshiteru AOYAGI
doaj   +1 more source

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