Finite Element Method Based Fatigue Analysis of a Gray Cast Iron Component

2013 ◽  
Author(s):  
Yue Ma
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Cast Iron ◽  
Gray Cast Iron ◽  
Fatigue Analysis ◽  
Gray Cast ◽  
Element Method

An Equivalent Constitutive Model of Cancellous Bone With Fracture Prediction

2020 ◽  
Vol 142 (12) ◽  
Author(s):  
Mohammad Salem ◽  
Lindsey Westover ◽  
Samer Adeeb ◽  
Kajsa Duke
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Cast Iron ◽  
Constitutive Model ◽  
Cancellous Bone ◽  
Equivalent Model ◽  
Plasticity Model ◽  
Microscale Model ◽  
Computational Resources ◽  
Element Method

Abstract To simulate the mechanical and fracture behaviors of cancellous bone in three anatomical directions and to develop an equivalent constitutive model. Microscale extended finite element method (XFEM) models of a cancellous specimen were developed with mechanical behaviors in three anatomical directions. An appropriate abaqus macroscale model replicated the behavior observed in the microscale models. The parameters were defined based on the intermediate bone material properties in the anatomical directions and assigned to an equivalent nonporous specimen of the same size. The equivalent model capability was analyzed by comparing the micro- and macromodels. The hysteresis graphs of the microscale model show that the modulus is the same in loading and unloading; similar to the metal plasticity models. The strength and failure strains in each anatomical direction are higher in compression than in tension. The microscale models exhibited an orthotropic behavior. Appropriate parameters of the cast iron plasticity model were chosen to generate macroscale models that are capable of replicating the observed microscale behavior of cancellous bone. Cancellous bone is an orthotropic material that can be simulated using a cast iron plasticity model. This model is capable of replicating the microscale behavior in finite element (FE) analysis simulations without the need for individual trabecula, leading to a reduction in computational resources without sacrificing model accuracy. Also, XFEM of cancellous bone compared to traditional finite element method proves to be a valuable tool to predict and model the fractures in the bone specimen.

Fatigue Analysis on Thermal Characteristics for PBGA by Using Finite Element Method

2014 ◽  
Vol 37 (9) ◽  
pp. 1052-1065 ◽  
Author(s):  
Ping Yang ◽  
Jie Gong ◽  
Haiying Yang ◽  
Xiushen Tang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Thermal Characteristics ◽  
Fatigue Analysis ◽  
Element Method

Probabilistic fatigue analysis of all-ceramic crowns based on the finite element method

2010 ◽  
Vol 43 (12) ◽  
pp. 2321-2326 ◽  
Author(s):  
Lei Zhang ◽  
Zhongyi Wang ◽  
Jianjun Chen ◽  
Wei Zhou ◽  
Shaofeng Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fatigue Analysis ◽  
The Finite Element Method ◽  
All Ceramic ◽  
Ceramic Crowns ◽  
Element Method

Random Vibration and Fatigue Analysis of Pressure Vessel

2013 ◽  
Vol 816-817 ◽  
pp. 695-697
Author(s):  
Mei Huang ◽  
Hao Yuan ◽  
Juan Ma ◽  
J.N. Tang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fatigue Strength ◽  
Pressure Vessel ◽  
Random Vibration ◽  
Maximum Stress ◽  
Fatigue Analysis ◽  
Element Method

In this article, finite element method is used to analyze the random vibration of the pressure vessel under the action of earthquake. The result shows that the maximum stress values are located at the bottom of the pressure vessel. At the same time, fatigue in this location has been analyzed. It can come to a conclusion that this pressure vessel meets the requirement of fatigue strength.

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