scholarly journals A PFA methodology to investigate UD composites in fatigue comprising a KTF-based model for matrix damage and stochastic fiber failure prediction

2021 ◽  
pp. 114724
Author(s):  
Faisal H. Bhuiyan ◽  
Ray S. Fertig
Keyword(s):  
Failure Prediction ◽  
Fiber Failure ◽  
Matrix Damage

Micromechanics of Damage Development in Polymer Composites

2014 ◽  
Author(s):  
Trupti Arabatti ◽  
Aswathi Sudhir ◽  
Suhasini Gururaja
Keyword(s):  
Polymer Composites ◽  
Plastic Material ◽  
Cohesive Zone Modeling ◽  
Damage Development ◽  
Fiber Failure ◽  
Damage Initiation ◽  
Finite Element Software ◽  
The Matrix ◽  
Fiber Matrix ◽  
Matrix Damage

Damage initiation and progression in uni-directional continuous polymer composites at the microscale has been investigated by considering a 3D Repeating Unit Cell (RUC) with square distribution of fibers. Three damage modes under static loading have been looked at, viz., matrix damage, fiber failure and fiber-matrix debonding. The matrix has been modeled as an isotropic elastic-plastic material via a user material subroutine (UMAT) within the framework of the finite element software Abaqus. In addition, fiber-matrix debonding has been simulated using a traction-separation criterion via Cohesive Zone Modeling (CZM) approach. Finally, a user defined field (USDFLD) has been used to simulate the fiber breakage. The combined effect of matrix-damage, fiber failure and interfacial debonding has then been studied using homogenization principles. Preliminary results from the current modeling approach have been found to be encouraging and this approach paves way for more complex multi-scale damage simulations in heterogeneous materials.

Fabrication of a Slope Failure Prediction Sensor using Miniaturized EC Sensor

2013 ◽  
Vol 133 (9) ◽  
pp. 278-283 ◽  
Author(s):  
Masato Futagawa ◽  
Mitsuru Komatsu ◽  
Hikofumi Suzuki ◽  
Yuji Takeshita ◽  
Yasushi Fuwa ◽  
...  
Keyword(s):  
Slope Failure ◽  
Failure Prediction

BUSINESS FAILURE PREDICTION USING ROUGH SETS: A COMPARISON WITH MULTIVARIATE ANALYSIS TECHNIQUES

1999 ◽  
Vol 04 (01) ◽  
Author(s):  
C. Zopounidis ◽  
M. Doumpos ◽  
R. Slowinski ◽  
R. Susmaga ◽  
A. I. Dimitras
Keyword(s):  
Multivariate Analysis ◽  
Rough Sets ◽  
Failure Prediction ◽  
Business Failure ◽  
Analysis Techniques

Failure Prediction of Composite Lugs Under Axial Loads

AIAA Journal ◽  
10.2514/1.781 ◽  
2003 ◽  
Vol 41 (11) ◽  
Author(s):  
Christos Kassapoglou ◽  
William A. Townsend
Keyword(s):  
Failure Prediction ◽  
Axial Loads
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