نتایج جستجو برای: johnson cook model

تعداد نتایج: 2123370  

Journal: :Metals 2021

The aim of the present work is to contribute characterization biaxial tensile behavior commercially pure titanium, under various in-plane loading conditions at room temperature, by a non-contact digital image correlation system. Several conditions, with load ratio ranging from 4:0 0:4 and displacement rate 0.001 0.1 mm/s, are examined. It found that yield strength ultimate sample greater than u...

Journal: :Modelling 2021

The manufacturing industry is confronted with increasing demands for digitalization. To realize a digital twin of the cutting process, an increase model reliability virtual representation becomes necessary. Thereby, different models are required to represent experimental behavior workpiece material or frictional interactions. One most utilized Johnson–Cook model. parameters determined either by...

Journal: :International journal of innovative engineering applications 2022

Lattice structures, produced by metal additive manufacturing technology, can be a potential alternative in armor applications, which are important parts of defense technologies due to their shock wave damping, energy absorption and light-weight properties. Despite the fact that protection lattice structures against explosives has been frequently investigated literature, perforation performance ...

Journal: :Metals 2022

In current industrial practice, the finite element modeling of metal cutting process is essential. this paper, analysis conventional and high-speed 7075-T6 aluminum alloy carried out. A model was developed using Johnson Cook instant on equation to investigate milling behavior under conditions. The forces in X-direction, Y-direction, Z-direction were predicted analytically for five groups differ...

Journal: :The International Journal of Advanced Manufacturing Technology 2021

Thermal properties of machined materials, which depend significantly on the change in cutting temperature, have a considerable effect thermal machining characteristics. Therefore, used for numerical simulation process should be determined depending temperature. To determine methodology and software-implemented algorithm were developed their calculation. This is based analytical models determina...

Journal: :Latin American Journal of Solids and Structures 2022

This is a study to investigate ballistics performance of armor structures with in-layer deflector against projectiles. For this purpose, the structure, which consists v-cross section sheet metal array covered aluminum and steel plates, has been designed optimized. Firstly, numerical simulations were studied using finite-element method (FEM). The ANSYS LS-DYNA FE software used for ballistic anal...

Journal: :The International Journal of Advanced Manufacturing Technology 2022

A comprehensive 3D finite element simulation study has been conducted to investigate the tool temperature distribution along cutting edge and chip formation during drilling of Ti6Al4V alloy by using commercial software Abaqus/Explicit. The Johnson–Cook material constitutive model failure criterion were implemented across formulations achieve in process. effect different mesh sizes on results wa...

Journal: :Algorithms 2023

Numerical methods based on finite element (FE) have proven their efficiency for many years in the thermomechanical simulation of forming processes. Nevertheless, application these to new materials requires identification and implementation constitutive flow laws within FE codes, which sometimes pose problems, particularly because strongly non-linear character behavior materials. Computational t...

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