Application of continuum decohesive finite element to progressive failure analysis of composite materials

2019 ◽  
Vol 212 ◽  
pp. 365-380 ◽  
Author(s):  
Shiyao Lin ◽  
Nhung Nguyen ◽  
Anthony M. Waas
Keyword(s):  
Finite Element ◽  
Composite Materials ◽  
Failure Analysis ◽  
Progressive Failure ◽  
Progressive Failure Analysis

Thinking on the Progressive Failure Analysis of the Slope

2014 ◽  
Vol 974 ◽  
pp. 293-297
Author(s):  
Xiao Ping Wang ◽  
Xiong Xia ◽  
Kun Hu ◽  
Jin Cai Feng
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Failure Analysis ◽  
Progressive Failure ◽  
Limit Equilibrium ◽  
Equilibrium Analysis ◽  
Challenging Problem ◽  
Test Analysis ◽  
Limit Equilibrium Analysis ◽  
Progressive Failure Analysis

The progressive failure study of the slope is a challenging problem. There exist a lot of problems at present in this area, it’s necessary to do some summaries. This paper did some analysis and discussion from four aspects: limit equilibrium analysis of the slope progressive failure; test analysis of the slope progressive failure, numerical simulation of the slope progressive failure and limit equilibrium analysis on the basis of finite element, and provided some reference for slope progressive failure study.

scholarly journals Durability Modeling of Environmental Barrier Coating (EBC) Using Finite Element Based Progressive Failure Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Ali Abdul-Aziz ◽  
Frank Abdi ◽  
Ramakrishna T. Bhatt ◽  
Joseph E. Grady
Keyword(s):  
Finite Element ◽  
Failure Analysis ◽  
Progressive Failure ◽  
Computational Simulation ◽  
Ceramic Matrix Composites ◽  
Life Assessment ◽  
Environmental Barrier ◽  
Progressive Failure Analysis ◽  
Environmental Barrier Coating ◽  
Barrier Coating

The necessity for a protecting guard for the popular ceramic matrix composites (CMCs) is getting a lot of attention from engine manufacturers and aerospace companies. The CMC has a weight advantage over standard metallic materials and more performance benefits. However, these materials undergo degradation that typically includes coating interface oxidation as opposed to moisture induced matrix which is generally seen at a higher temperature. Additionally, other factors such as residual stresses, coating process related flaws, and casting conditions may influence the degradation of their mechanical properties. These durability considerations are being addressed by introducing highly specialized form of environmental barrier coating (EBC) that is being developed and explored in particular for high temperature applications greater than 1100°C. As a result, a novel computational simulation approach is presented to predict life for EBC/CMC specimen using the finite element method augmented with progressive failure analysis (PFA) that included durability, damage tracking, and material degradation model. The life assessment is carried out using both micromechanics and macromechanics properties. The macromechanics properties yielded a more conservative life for the CMC specimen as compared to that obtained from the micromechanics with fiber and matrix properties as input.

Sign in / Sign up

Export Citation Format

Share Document