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In this study, a series of uniaxial and multiaxial ratcheting tests were conducted at room temperature on zirconium alloy tubes. The experimental results showed that for uniaxial symmetrical cyclic test, the axial ratcheting strain ɛx did not accumulate obviously in initial stage, but gradually increased up to 1% with increasing stress amplitude σxa. For multiaxial ratcheting tests, the zirconium...
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