Revisiting bending theories of elastic gradient beams

2018 ◽  
Vol 126 ◽  
pp. 1-21 ◽  
Author(s):  
S. Lurie ◽  
Y. Solyaev
Keyword(s):  
2018 ◽  
Vol 113 (18) ◽  
pp. 183506 ◽  
Author(s):  
Liyun Cao ◽  
Yanlong Xu ◽  
Badreddine Assouar ◽  
Zhichun Yang

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 406
Author(s):  
Siqian Zhang ◽  
Jing Liu ◽  
Haoyu Zhang ◽  
Jie Sun ◽  
Lijia Chen

Natural materials are generally damage adaptive through their multilevel architectures, with the characteristics of compositional and mechanical gradients. This study demonstrated that the desired elastic gradient can be in-situ stress-induced in a titanium alloy, and that the alloy showed extreme fatigue-damage tolerance through the crack deflection and branch due to the formation of a three-dimensional elastically graded zone surrounding the crack tip. This looks like a perceptive and adaptive mechanism to retard the crack: the higher stress concentrated at the tip and the larger elastic gradient to be induced. The retardation is so strong that a gradient nano-grained layer with a thickness of less than 2 μm formed at the crack tip due to the highly localized and accumulated plasticity. Furthermore, the ultrafine-grained alloy with the nano-sized precipitation also exhibited good damage tolerance.


2013 ◽  
Vol 84 (5) ◽  
pp. 459-466 ◽  
Author(s):  
Michael B. Stenger ◽  
Stuart M. C. Lee ◽  
Christian M. Westby ◽  
L. Christine Ribeiro ◽  
Tiffany R. Phillips ◽  
...  

Author(s):  
Yuan Hong ◽  
Changhao Xia ◽  
Shixiang Zhang ◽  
Lin Wu ◽  
Chao Yuan ◽  
...  

2000 ◽  
Vol 48 (16) ◽  
pp. 4021-4033 ◽  
Author(s):  
C.-E. Rousseau ◽  
H.V. Tippur

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