TY  - JOUR
T1  - Investigation of the Thin Beryllium Windows Fracture Probability under the
External Cyclic Load
AU - Mishin, V.V. AU - Shishov, I.A. AU - Mincena, A. 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 23
SP  - 7242
EP  - 7249
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.7242.7249
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.7242.7249
KW  - Thin beryllium foils
KW  -beryllium fracture
KW  -beryllium deformation
KW  -beryllium windows for X-ray detectors
KW  -possibility
KW  -determination
AB  - The stress-strain state and deformation of thin beryllium round-shaped windows are calculated under
cyclic loading by external pressure using the finite element method. The possibility of fracture probability
estimating by comparing the accumulated plastic strain in a foil with a certain plastic strain limiting (critical)
value was shown for beryllium windows. A technique of plastic strain limiting (critical) intensity experimental
determination by testing foil samples for bending up to fracture was proposed. Experimental testing of
0.008 mm thick beryllium windows showed a good match of predicted fracture of beryllium foil with experimental
data.
ER  -