Johnson-Cook constitutive equation is one of the most famous constitutive equations that have ever been developed to model the hot deformation flow curves of different materials. This equation is a predefined model in the traditional finite element codes to describe the material behavior in applications such as simulating the manufacturing processes. In this work, two different genetic algorith...

Abstract In this paper, the constitutive equation parameters (Johnson–Cook parameters) of 33MnCrB5 material were determined with help tensile tests. Initially, Johnson–Cook (JC) model was used for performing simulations sample finite element analysis ANSYS software. For these operations, first at a certain temperature (24 °C) and low strain rates (10 −1 , 10 −2 −3 s ) quasi-static tests perform...

There is a requirement to find accurate parameters to accomplish precise dimensional accuracy, excellent surface integrity and maximum MRR. This work studies the influence of various cutting parameters on output parameters like Cutting force, Surface roughness, Flatness, and Material removal rate while face milling. A detailed finite element model was developed to simulate the face milling proc...

Because numerical simulations with classical Johnson-Cook formulation of explosively formed projectiles induce non representative projectiles, a modified Johnson-Cook model taking into account the thermally activated and viscous regimes as well as the notion of saturation stress in the 10 s regime has been developed. Using both models, numerical experimental comparisons of Taylor and explosivel...

http://dx.doi.org/10.1016/j.foreco.2017.04.038 0378-1127/Published by Elsevier B.V. ⇑ Corresponding author. E-mail addresses: [email protected] (C.A. Maier), [email protected] (T.J. Albaugh), [email protected] (R.I. Cook), [email protected] (K. Hall), dmcinnis@ fs.fed.us (D. McInnis), [email protected] (K.H. Johnsen), [email protected] (J. Johnson), [email protected] (R.A. Rubilar), jvos...

In the present paper, a numerical study is performed to investigate the response of different plates aluminum alloys subjected to low velocity impact condition. In this regard, the square AA5083-H116 aluminum plates with dimensions 300×300 and 3 mm and 5 mm thick under low velocity impact are modelled, and a mesh convergence study is carried out to decide the appropriate number of elements. In ...

In the Deep-drawing process, a blank is drawn into hollow element taking shape of die by operation punch. This process has numerous advantages and applications in automobile, aerospace, kitchenware, packaging industries. The primary purpose this study to design simulate deep drawing LS-Dyna PrePost(R) V4.6.17 using Johnson-Cook flow stress as material model. An appropriate judicious characteriz...