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Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Comparison of two uncoupled ductile damage initiation ...
Comparison of two uncoupled ductile damage initiation ...

28/7/2020, · In this paper, a simple uncoupled ,damage, approach, designed to be easy to use for engineers and accurate as well, is investigated. Two uncoupled ,damage, models, which consider the effect of the Lode angle and the hydrostatic pressure, combing three typical hardening rules, are selected and applied to the ,damage, prediction of DP900 dual-phase steel.

IDENTIFICATION OF DUCTILE DAMAGE PARAMETERS FOR …
IDENTIFICATION OF DUCTILE DAMAGE PARAMETERS FOR …

Ductile damage, is the process of metallic material ,damage, under conditions of monotonic loading. Evolution of the ,damage, follows plastic straining and ends by fracture of component. Problems of ,ductile damage, play significant role in industry, for example in optimization of technological processes,

ABAQUS Explicit with Ductile Damage - Cupid's Arrow ...
ABAQUS Explicit with Ductile Damage - Cupid's Arrow ...

Sunday is Valentines Day, and whether you have that special someone in your life or not, Fidelis is spreading the love with this ,ductile damage, tutorial for Abaqus! The Fidelis Fun Features series is aimed at taking a lighthearted approach to learning some of the more advanced features of ABAQUS in a fun and efficient way.

Liberty Ship Failures | Metallurgy & Materials Engineering
Liberty Ship Failures | Metallurgy & Materials Engineering

25/12/2015, · The failure of many of the World War II Liberty ships is a well-known and dramatic example of the brittle fracture of steel that was thought to be ,ductile,. Some of the early ships experienced structural ,damage, when cracks developed in their decks and hulls.

Effect of temperature in ductile damage models
Effect of temperature in ductile damage models

Ductile damage, is a process of metallic material ,damage, in conditions of monotonic loading. Evolution of the ,damage, follows plastic straining and ends by fracture of the component. Fig. 1 - Hypothetical fall of the top block in reactor shaft

the ductile damage - DASSAULT: ABAQUS FEA Solver - Eng-Tips
the ductile damage - DASSAULT: ABAQUS FEA Solver - Eng-Tips

If you specify multiple data sets for ,ductile damage, initiation criterion then Abaqus will assume that equivalent plastic strain at the onset of ,damage, depends on the stress triaxality, strain rate, and, in some cases, temperature. Make sure that the data from literature is defined correctly and that applied loads are enough to cause ,damage,.

Tenacity: Mineral Properties - The Mineral and Gemstone ...
Tenacity: Mineral Properties - The Mineral and Gemstone ...

Ductile, - A ,mineral, that can be stretched into a wire is ,ductile,. All true metals are ,ductile,. An example is Gold. Flexible but inelastic - Any ,mineral, that can be bent, but remains in the new position after it is bent is flexible but inelastic. If the term flexible is singularly used, it implies flexible but inelastic.

Experimental assessment of ductile damage in P91 steel at ...
Experimental assessment of ductile damage in P91 steel at ...

In this paper, we provide a comparison between two indirect experimental methodologies to assess ,ductile damage, in P91 steel tested at 1100℃: the micro-tomography and the ultrasonic wave propagation techniques. To understand the effect of the strain rate on ,damage, or porosity evolution, two series of tensile tests were carried out: a first (quasi-static) one featuring a velocity of the ...

Computational and Numerical Analysis of Ductile Damage ...
Computational and Numerical Analysis of Ductile Damage ...

Computational and Numerical Analysis of ,Ductile Damage, Evolution under a Load-Unload Tensile Test in Dual-Phase Steel 341 of isotropic hardening, εe the second order elastic strain tensor, and εp is the accumulated plastic strain. Considering that the energy release rate associated to the ,damage, D, is the amount of energy available to

Multi-scale Modelling for Studying Ductile Damage of Free ...
Multi-scale Modelling for Studying Ductile Damage of Free ...

2.2 Integrated ,ductile damage, criteria with ABAQUS Simple integrated ,ductile damage, criteria have their benefits in highlighting zones where ,damage, might be initiated but most of them are either empirical or ma croscopic and do not differentiate on microstructural features (inclusions, DRX, grain size, etc.).

A non-linear ductile damage growth law at elevated temperature
A non-linear ductile damage growth law at elevated temperature

with the critical ,damage, criterion is used to predict ,ductile, fracture. The ,damage, growth law in references [1, 2], for isothermal case, has only one material constant S 0. The constant is expressed in four measurable quantities (i.e., the equivalent plastic strain and ,damage, at the ,damage, initia-tion and fracture) so as to express the ,damage, ...

Liberty Ship Failures | Metallurgy & Materials Engineering
Liberty Ship Failures | Metallurgy & Materials Engineering

25/12/2015, · The failure of many of the World War II Liberty ships is a well-known and dramatic example of the brittle fracture of steel that was thought to be ,ductile,. Some of the early ships experienced structural ,damage, when cracks developed in their decks and hulls.

Material Damage and Failure - iMechanica
Material Damage and Failure - iMechanica

Damage Initiation Criteria for Ductile Metals • Ductile criterion: –Appropriate for triggering damage due to nucleation, growth, and coalescence of voids –The model assumes that the equivalent plastic strain at the onset of damage is a function of stress triaxiality and strain rate. • Stress triaxiality η = − p / q

Ductile damage micromodeling by particles’ debonding in ...
Ductile damage micromodeling by particles’ debonding in ...

Ductile damage, is initiated by the matrix/particle interface debonding and the subsequent voids growth with plastic straining of the crystalline matrix. Homogenization techniques are used twice: first at mesoscale to derive the equivalent grain behaviour and then to …

Tenacity: Mineral Properties - The Mineral and Gemstone ...
Tenacity: Mineral Properties - The Mineral and Gemstone ...

Ductile, - A ,mineral, that can be stretched into a wire is ,ductile,. All true metals are ,ductile,. An example is Gold. Flexible but inelastic - Any ,mineral, that can be bent, but remains in the new position after it is bent is flexible but inelastic. If the term flexible is singularly used, it implies flexible but inelastic.

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