Scholarlink

<p>One of the promising directions for solving the problem of compaction, further immobilization, and preparation for long-term storage or final disposal of high-level and long-lived radioactive waste generated as a result of the Chernobyl NPP accident is the use of gas-static equipment designed and manufactured at Ukrainian enterprises. Based on the analysis of the stress-strain state of the housing clamp of the GAUS-4/1250-35 gas-static unit, the most dangerous sections in it were established, calculations of stress intensity factor were carried out using the weight function method for the most typical (postulated) defects, the limit loads (force) of ductile fracture P<sub>LL</sub> were determined, and for the obtained experimental values of mechanical properties and crack resistance characteristics of materials cut from blanks intended for the manufacture of structural elements of the housing clamp of the GAUS-4/1250-35 gas-static unit, the failure assessment diagram and dependence of design durability on cyclic loading were constructed for the most typical fatigue cracks. To justify the frequency of nondestructive testing of the GAUS-4/1250-35 gas-static unit, an approach is proposed to assign a safety factor to determine the residual resource (durability) during the development of surface fatigue cracks in structural elements at the design stage.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Bi-Criterial Interpretation of Fatigue Crack Growth. Part 2. Prediction of the Structural Strength and Durability of the Gas Station GAUS-4/1250-35 at the Design Stage

  • 期刊论文

  • 发表日期：

    2025年7月1日

查看全文
  • V. M. Torop

摘要

One of the promising directions for solving the problem of compaction, further immobilization, and preparation for long-term storage or final disposal of high-level and long-lived radioactive waste generated as a result of the Chernobyl NPP accident is the use of gas-static equipment designed and manufactured at Ukrainian enterprises. Based on the analysis of the stress-strain state of the housing clamp of the GAUS-4/1250-35 gas-static unit, the most dangerous sections in it were established, calculations of stress intensity factor were carried out using the weight function method for the most typical (postulated) defects, the limit loads (force) of ductile fracture PLL were determined, and for the obtained experimental values of mechanical properties and crack resistance characteristics of materials cut from blanks intended for the manufacture of structural elements of the housing clamp of the GAUS-4/1250-35 gas-static unit, the failure assessment diagram and dependence of design durability on cyclic loading were constructed for the most typical fatigue cracks. To justify the frequency of nondestructive testing of the GAUS-4/1250-35 gas-static unit, an approach is proposed to assign a safety factor to determine the residual resource (durability) during the development of surface fatigue cracks in structural elements at the design stage.