Strength Evaluation of Beryllium Window for Spring-8 Front Ends
نویسندگان
چکیده
We carried out an elastic and plastic analysis successfully against a new type beryllium window for the SPring-8 front ends. The new window has beryllium foils of high-purity and fine-surfaceroughness on user’s demand. It was confirmed that the new foil has only about half the mechanical strength of the existing one by a static tensile test. Based on the analysis solutions and the tensile test results, we tried to predict the fatigue life of the new window. According to the Manson’s universal slope rule, the life was estimated at about 10 cycles, which is considered to be too enough for the usage.
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