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Biaxial Yield Surface Investigation of Polymer-Matrix Composites [PDF]

open access: yesSensors, 2013
This article presents a numerical technique for computing the biaxial yield surface of polymer-matrix composites with a given microstructure. Generalized Method of Cells in combination with an Improved Bodner-Partom Viscoplastic model is used to compute ...
Zhengjia He   +3 more
doaj   +2 more sources

Yield surface evolution for columnar ice

open access: yesResults in Physics, 2016
A series of triaxial compression tests, which has capable of measuring the volumetric strain of the sample, were conducted on columnar ice. A new testing approach of probing the experimental yield surface was performed from a single sample in order to ...
Zhiwei Zhou   +5 more
doaj   +2 more sources

Overview of an Experimental Program for Development of Yield Surfaces Tracing Method

open access: yesApplied Sciences, 2021
This paper develops an experimental technique to evaluate the initial yield surfaces of metallic materials, as well as to study their evolution during plastic flow. The experimental tracing of yield surfaces is necessary for deriving and calibrating more
Jan Štefan   +5 more
doaj   +1 more source

Phenomenological Modeling of Deformation-Induced Anisotropic Hardening Behaviors: A Review

open access: yesMetals, 2023
Numerous studies indicate that the hardening behaviors of materials are closely related to their deformation history. In the forming processes with loading path changes, such as sheet metal forming, anisotropic hardening behaviors are universally ...
Huachao Yang   +3 more
doaj   +1 more source

Mathematical modeling of materially nonlinear problems in structural analyses, Part I: Theoretical fundamentals [PDF]

open access: yesFacta Universitatis. Series: Architecture and Civil Engineering, 2010
Material models describe the way they behave when loaded. The paper presents the development of the model beginning with the simplest linear-elastic and rigid-plastic ones.
Bonić Zoran   +2 more
doaj   +1 more source

Study on the Yield Behavior of Closed-Cell Foams under Multiaxial Loads Based on Different Yield Definitions

open access: yesApplied Sciences, 2023
In this paper, the yield behavior of closed-cell foams under multiaxial load conditions is investigated via finite element analysis on the representative volume element (RVE) scale by using the regular Kelvin of RVE and random models of RVE, respectively.
Huimin Yu   +3 more
doaj   +1 more source

Modification of a Constitutive Model for Gassy Clay

open access: yesJournal of Marine Science and Engineering, 2023
Gassy clays containing large, discrete gas bubbles are widely spread in deposits in shallow waters. The existence of gas bubbles may impair the original soil structure, resulting in the instability of offshore foundations and the occurrence of submarine ...
Tao An, Dong Wang, Xiurong Yang
doaj   +1 more source

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

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