首页/ 题库 / [单选题]应力循环特征值(应力比)ρ<的答案

应力循环特征值(应力比)ρ=σmin/σmax将影响钢材的疲劳强度。在其它条件完全相同情况下,下列疲劳强度最低的是

单选题
2021-07-17 23:29
A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">对称循环ρ<span lang="EN-US">=-1</span></span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">应力循环特征值ρ<span lang="EN-US">=+1</span></span>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">脉冲循环ρ<span lang="EN-US">=0</span></span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-bidi-font-size: 12.0pt; mso-bidi-font-family: " times="" new="" roman";="" mso-font-kerning:="" 1.0pt;="" mso-ansi-language:="" en-us;="" mso-fareast-language:="" zh-cn;="" mso-bidi-language:="" ar-sa"="">以压为主的应力循环</span>
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正确答案
A

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