The Kink Band Mechanism for the Compressive Failure of Fiber Composite Materials

1997 ◽  
Vol 64 (1) ◽  
pp. 1-6 ◽  
Author(s):  
R. M. Christensen ◽  
S. J. DeTeresa

A simple strain-based yield/failure criterion for fiber composite materials is incorporated into a kink band analysis of compressive failure. Under realistic conditions of fiber misalignment the analysis predicts compressive failure at load levels about one–fifth of the ideal value, and with kink band inclinations of about 20 deg. Some parametric variations of the relevant physical variables are given in simple graphical forms, and comparisons are made with newly obtained micrographs of kink bands.

2017 ◽  
Vol 84 (7) ◽  
Author(s):  
Richard M. Christensen

Building upon the previous work for the failure of quasi-isotropic fiber composite laminates, the much more difficult and more important general case of orthotropic laminates is now taken up. The full and complete failure criterion is derived for fiber dominated, general 0, 90, ±45-deg laminated materials, with the relative volume fractions to be specified for each direction. Quasi-isotropy is a special case of the orthotropic formalism, and the general orthotropic results are just as rigorous as the previous specialized quasi-isotropic results. The orthotropic failure criterion results are of direct and immediate relevance in composite materials applications.


2019 ◽  
Vol 777 (12) ◽  
pp. 73-77
Author(s):  
B.A. BONDAREV ◽  
◽  
T.N. STORODUBTSEVA ◽  
D.A. KOPALIN ◽  
S.V. KOSTIN ◽  
...  

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