scholarly journals UNCONVENTIONAL MATERIAL PART FEM ANALYSIS

2016 ◽  
Vol 2 (1) ◽  
pp. 20-25
Author(s):  
Michal Tropp ◽  
Michal Lukac

The article covers the usability of alternative materials in vehicle construction. The paper elaborates upon the setup of the process and analysis of the results of the carbon composite component FEM model. The 3D model, used for the examination, is a part of axle from an alternative small electric vehicle. The analysis was conducted with the help of MSC Adams and Ansys Workbench software. Color maps of von Mises stress in material and total deformations of the component are the results of calculation.

2014 ◽  
Vol 664 ◽  
pp. 371-375
Author(s):  
Vishank Bhatia ◽  
R. Karthikeyan ◽  
R.K. Ganesh Ram ◽  
Yashaan Nari Cooper

The structural analysis of quad rotor frame is important since it has to withstand the forces due to aerodynamics and gravitational force due to the mounted weights. Design optimization based on finite element analysis provides an efficient methodology to meet the desired objectives related to structural elements. In the present study, design optimization based on response surface methodology has been used to optimize the shape of the arm used in the quad rotor. The objectives considered for the study include minimization of Von Mises stress and total deformation. The goal driven optimization used in ANSYS WORKBENCH has been employed for the study and arm has been redesigned to meet the set goals.


2019 ◽  
Vol 112 ◽  
pp. 03034 ◽  
Author(s):  
Mihai Gabriel Matache ◽  
Remus Marius Oprescu ◽  
Dragos Nicolae Dumitru ◽  
Gabriel Valentin Gheorghe ◽  
Dan Cujbescu ◽  
...  

Deep soil loosening machine MAS 65 is destined to work soil at depths exceeding 45 cm, thus the machine’s frame is subjected to loads which could affect its structural integrity. Within this paper a static structural analysis was performed on the machine’s 3D model using finite element method and strain and stress distribution maps were created. Using the Von Mises stress map there were identified several critical points which could fail during normal exploitation conditions and which should be monitored by strain gages during field tests in order to prevent structural failure.


2013 ◽  
Vol 739 ◽  
pp. 431-436
Author(s):  
Ho Kyung Kim

In order to evaluate the fatigue endurance for an ultra lightweight inline skate frame, FEM analyses was performed. The tensile properties and an S-N curve were determined through tensile and fatigue tests on a modified Al-7075+Sc alloy. The yield and ultimate tensile strengths were 553.3 MPa and 705.5 MPa, respectively. The fatigue endurance limit of this alloy was 201.2 MPa. To evaluate the fatigue endurance of the inline skate frame, the S-N data were compared with the stress analysis results through FEM analyses of the frame. The maximum von Mises stress of the frame was determined to be 106 MPa through FEM analysis of the frame, assuming that the skater weight is 75 kg. Conclusively, on the basis of the fatigue limit, the inline skate frame has a safety factor of approximately 2.0.


2021 ◽  
Vol 17 (3) ◽  
pp. 274-284
Author(s):  
Nurnedilah Mohammad Kata ◽  
Nur Afikah Zainal Abidin ◽  
Aishah Umairah Abd Aziz ◽  
Abdul Halim Abdullah ◽  
Ng Bing Wui ◽  
...  

An external fixator device is a medical implant used to keep fractured bones stabilized and in alignment. It consists of pins which are placed into the bone, extending outside the surface of the skin, and attached to a rigid external rod to keep it in place. The aim of this study is to investigate the most suitable material used for the external fixator. Firstly, the 3D model of two unilateral uniplanar external fixator with the properties of titanium and stainless steel were constructed at Solidworks software with all the other parameters set to constant. Meanwhile, CT images of the lower limb were used to reconstruct a 3D model of the femur fracture at Mimics Medical software. Positioning and meshing of both the external fixator and the femur done at 3-Matics Medical and export as Patran for simulation at Marc Mentat software. 375 N load was applied at the most proximal femur to simulate stance phase of a gait cycle. From the findings, external fixator by using stainless steel as material properties have lower maximum von Mises Stress (18.40 MPa) at the femur and (103.69 MPa) at the fixator compared to the titanium (32.38 MPa) at the femur and (182.93 MPa) at the fixator. The result shows a difference of 75% of maximum von Mises Stress at the femur and the external fixator. Configuration by using stainless steel displaced 1.15 mm at the femur and 1.01 mm at the fixator which almost double value of displacement for titanium material for both femur (2.35 mm) and external fixator (2.11 mm). In conclusion, stainless steel external fixators provide better stability when compared to titanium external fixators. 


2013 ◽  
Vol 341-342 ◽  
pp. 432-437
Author(s):  
Ying Wu ◽  
Xu Zhou

For cutting down the stress and displacement of banded wedge and synchronous V belt drive in the transmission process, promoting the transmission mechanism, and improving quality of the belt drive, the working principle of the transmission mechanism was introduced briefly. The three dimensional solid model of the transmission mechanism constituted in pro/e; the main parameters of the model were set using ANSYS Workbench. And then the serialization simulation analysis of the transmission mechanism was achieved when the tension force is located in the point of the V belt exiting meshing with the driven wheel; the cloud diagram of Von Mises stress and the maximal Von Mises stress and total deformation of the transmission mechanism were elicited. The simulation results were analyzed. The simulation results show that the maximal equivalent stress and maximal total deformation of the transmission mechanism are determined by the size of the tensioning force when the active force is small. Augmenting the active force of the transmission mechanism the maximal equivalent stress increases effectively and the maximal total deformation changes little when the active force is large. Reducing becomingly the tensioning force in ensuring natural belt drive shall reduce effectively the maximal Von Mises stress of the transmission mechanism. Adjusting opportunely the location of the tensioning force the total deformation of the transmission mechanism reduces effectively.


Author(s):  
Johanna Ehlers ◽  
Henning Ressing ◽  
Wulf-Christof von Karstedt ◽  
Daniel Rixen ◽  
Mohamed S. Gadala

The turbine blade is one of the most critical components of a steam turbine. The high thermal loads and large centrifugal forces cause extreme stresses on the blade, especially on its root. This paper focuses on improving the double-T root of a turbine blade of the control stage by decreasing the root’s peak equivalent von-Mises stress. An 18% reduction was achieved in the peak stress by changing the convexity of the contact surface between the root and the groove. The equivalent von-Mises stress was determined in a static structural analysis of a three dimensional finite element model (3D FEM-model) using ANSYS Workbench. This numerical model was developed to include one blade and the associated part of the shaft, whereas the complete circle of blades was considered by applying cyclic symmetry. Furthermore, this paper includes a modal analysis comparing the natural frequencies of the initial FEM-model with the frequencies of the optimized one. The results were established by an investigation of the influence of the FEM-model’s parameters, its material properties, thermal effects, and an additional damping wire in the shroud.


2014 ◽  
Vol 980 ◽  
pp. 127-131
Author(s):  
Miroslav Kvíčala ◽  
Michaela Štamborská ◽  
Jaromír Drápala

This paper deals with FEM analysis of six models that represents human cortical bone, cast TiAl6V4 alloy and porous TiAl6V4 with different pore diameters. Reliable data for the simulations were achieved by meta-analysis that consisted from 53 scientific works. Strain value was chosen with a respect to the frequent daily activities such as walking. According to the FEM analysis of presented models von Mises stress values and stress concentration factors were similar for human cortical bone and porous TiAl6V4.


2011 ◽  
Vol 189-193 ◽  
pp. 2058-2061
Author(s):  
Zi Qian Huang ◽  
Qing Lian Xie

In the process of casing casting, great temperature gradient leads to contraction deformation of cylinder liner, which influences the quality of products. The thermal stresses caused by temperature gradient were analyzed by finite element method. The numerical results show that high equivalent Von Mises stress(242MPa) occurs in the surface zone of the cylinder liner as Cooling down to room temperature within pipe die ,also there is plastic deformation in the internal and external surface zone. Reducing the cooling speed, decreasing the temperature gradient and aging can reduce the influence of thermal stresses.


Author(s):  
Aswin Balaji ◽  
Balamurugan Manivannan ◽  
Harshini Murali ◽  
Kabilan Karthikeyan ◽  
Sivaramakrishnan K

Wheel rims are one of the important parts of automotive, where it is heavily undergoes static and fatigue failures as the wheel travels in different road conditions. As it develops, the heavy stress produced, critical stress and number of cycles to failure were found. The design and shape of the wheel rim were to be accommodated for the requirement of vehicle. The wheel rims are mostly employed alloy materials with suitable parameters. A 3D model of wheel rim was made with Creo Parametric Software and then it was converted into IGES format and imported into ANSYS. Static analysis was performed using ANSYS 19.2 software and results were obtained by performing the analysis, it gives the differences in the behaviour of the model. In this static analysis, we found out Equivalent Von-mises stress, Equivalent Elastic strain and Total Deformation by applying fixed supports in lug holes and pressure of 0.27579 Mpa (40 psi) is applied on the outer surface of the rim for 3 different materials such as Steel, Aluminum alloy and Magnesium alloy.


2021 ◽  
Vol 18 (1) ◽  
pp. 14-21
Author(s):  
A. Muhammad ◽  
I.H. Shanono

In this paper, deformation, Von-Mises stress, and failure analysis were carried out on a base stand using ANSYS workbench. The structural design was carried out using SolidWorks software and then imported into the ANSYS workbench for analysis. The investigation is performed using four different materials, i.e., structural steel, aluminum alloy, carbon fiber, and copper alloy, with an applied loading force of 1000 N at the tip of the structure. This technique highlights a complete reaction of the structure to the loading force, therefore providing room for structural optimization to reduce the risk of unexpected failure and unnecessary material wastage. The results obtained were compared and analyzed to identify the best material capable of withstanding the subjected force. Based on the Von-mises result, Carbon fiber has the highest possible maximum stress value of 4.70e+07 Pa, followed by structural steel, then Copper alloy. At the same time, the aluminium alloy has the least minimum Von-Mises. Structural steel is the very best option based upon the analysis outcomes. Its factor of safety is above unity in all the designs, which indicates that the structure has been over-designed. For that reason, it is suggested that the structure needs to be enhanced. Keywords: Finite element analysis, base stand, ANSYS, deformation, von mises stress.


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