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The Bending Behavior of Carbon Fiber Reinforced Polymer Composite for Car Roof Panel Using ANSYS 21
Published in Amar Patnaik, Vikas Kukshal, Pankaj Agarwal, Ankush Sharma, Mahavir Choudhary, Soft Computing in Materials Development and its Sustainability in the Manufacturing Sector, 2023
We have performed the three-point bending test using the boundary conditions on the composite sample. The failure model used was based on von mises yield criterion/equivalent stress yield criterion. This failure model was used to know about the exact deformation and equivalent stress at failure condition so that we can safely use the composite sample for application purpose.
Full-scale testing of beam-to-column connections with partial joint penetration groove welded joints
Published in M.A. Jaurrieta, A. Alonso, J.A. Chica, Tubular Structures X, 2017
K. Azuma, Y. Kurobane, K. Dale, Y. Makino
A finite element analysis of the two specimens was carried out using the ABAQUS (2002) general-purpose finite element package. The models were constructed from 8-noded linear 3D elements. This element is nonconforming and isoparametric and employs the reduced integration technique with hourglass control. The plasticity of the material was defined by the von Mises yield criterion. The isoparametric hardening law was used for this analysis. The ABAQUS program requires the stress–strain data to be input in the form of true stress and logarithmic strain, and the stress–strain curves were transformed accordingly. The material data in the analysis were calculated from tensile coupon test results. Mesh models were generated for half of the specimens because of symmetry in configuration. The unfused regions were produced by the nodes in the defect area on the contact surfaces between the beam flange and the column flange. These surfaces were separated in each element as double nodes. A monotonic load was applied to the beam end. The moment-rotation curves are compared with the skeleton curves that were obtained from experimental results for each specimen.
Applicability of partial joint penetration groove welded joints to beam-to-RHS column connections and assessment of safety from brittle fracture
Published in J.A. Packer, S. Willibald, Tubular Structures XI, 2017
K. Azuma, Y. Kurobane, T. Iwashita, K. Dale
A finite element analysis of the two specimens was carried out using the ABAQUS (2005) general-purpose finite element package. The models were constructed from 8-noded linear 3D elements. This element is nonconforming and isoparametric and employs the reduced integration technique with hourglass control. The plasticity of the material was defined by the von Mises yield criterion. The isoparametric hardening law was used for this analysis. The ABAQUS program requires the stress-strain data to be input in the form of true stress and logarithmic strain, and the stress-strain curves were transformed accordingly. The material data in the analysis were calculated from tensile coupon test results. Mesh models were generated for a half of the specimens because of symmetry in configuration.
Fluid–structure interaction investigation for coal-water slurry preheaters: Effects of different loads on mechanical performance
Published in Numerical Heat Transfer, Part A: Applications, 2023
Juan Xiao, Xudong Duan, Simin Wang, Zaoxiao Zhang
The obtained pressure and temperature in CFD, as input loads, are fully and successfully transferred to CSM, and the material of ladder-type fold baffles is structural steel, as shown in Table 2. Given the fix and support of heat exchange tubes and spacer tubes to baffles, the constraint at holes of helical baffles is considered as simple support according to the relationship between the force and the reaction force. That is, the rotation of the baffle is limited, and there is no deformation and movement in x, y, and z directions. The von Mises yield criterion is used, which means the material starts yielding when von Mises stress approaches a value known as yield strength. The equivalent von Mises stress is below: where σ1, σ2, and σ3 represent the first, second, and third principal stress. When the failure is defined by material yielding, it follows that the design goal is to limit the maximum von Mises stress to be less than the yield strength of the material. The yield strength of structural steel is 250 MPa in this study.
Proposed Modification for ADAS Damper to Eliminate Axial Force and Improve Seismic Performance
Published in Journal of Earthquake Engineering, 2022
Mohammadreza Khoshkalam, Mohamad Hosein Mortezagholi, Seyed Mehdi Zahrai
In order to ensure the validity of the numerical model, the cyclic force–displacement curves for the experimental model (Wu et al. 2012) and the Abaqus model of ADAS dampers are compared to each other. The experimental model consists of 15 X-shape plates and 2 mild steel connection plates (Fig. 1) with an elastic modulus of 211 GPa, elongation rate of 64.5%, yield strength of 173.3 MPa and ultimate strength of 233.3 MPa. In general, yield function, flow rule, and hardening is considered to describe the plastic behavior of metals. The Von Mises yield criterion is used for yield function and flow rule, which has acceptable results for most metals. Also, the kinematic hardening model is used to define the inelastic behavior of metals subjected to cyclic loading. The model is loaded by means of a hydraulic jack under a cyclic loading to extract its cyclic curve.
Computational analysis of the transportation phase of an innovative foundation for offshore wind turbine
Published in Ships and Offshore Structures, 2021
J. Cardoso, M. Vieira, E. Henriques, L. Reis
The final geometry was analysed for the three cases defined in section 2.2 for the DLC 8.1 and the respective von Mises stresses were calculated, as recommended by the GL norms (Lloyd 2012). The von Mises stress is a value used to determine whether a given material will yield or fracture, and is mainly used in ductile materials, such as metals. The von Mises yield criterion states that a given material will start yielding when the von Mises stress reaches the value of the yield strength of that material, and is used to predict yielding of materials under complex loading from the results of uniaxial tensile tests (Jones 2009). Figure 9 represents the evolution of the maximum values of the von Mises stresses for the three different cases, using the loads calculated by FAST. Table 6 shows the corresponding main results of the von Mises stresses.