我国成功研制疲劳试验机动态力校准装置
我国成功研制疲劳试验机动态力校准装置让材料可靠性测试更精准<SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US><Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal>
<SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'">日前，由中国计量科学研究院自主研制的疲劳试验机动态力校准装置通过专家鉴定。经鉴定，该装置主要技术指标达到国际先进水平，并填补了国内疲劳试验机动态力校准方法研究方面的空白。</SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'">
<SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'"><Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal><SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US><Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal><SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'">疲劳是指材料在重复或交变应力作用下，所受应力远小于其抗拉强度时，经多次循环后，在无显著外观变形情况下而发生的断裂现象。这种断裂一旦发生，往往将导致灾难性的设备或人身伤亡事故。据了解，汽车零部件的破坏中<SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US><SPANstyle="FONT-FAMILY:TimesNewRoman">85%<SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'">由疲劳引起的，航空工程中有<SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US><SPANstyle="FONT-FAMILY:TimesNewRoman">60%~80%<SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'">的断裂是由结构材料的疲劳破坏引起的。为保证产品、工程质量和人身安全，相关行业主要通过疲劳试验机来测量试件材料的疲劳极限和疲劳寿命等性能指标。
<Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal><SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US><SPANstyle="FONT-FAMILY:TimesNewRoman"><SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'">该装置的成功研制，为疲劳试验机校准、检定和定型鉴定提供了高准确度的计量标准和科学合理的装置和方法。为航空航天、汽车、船舶、冶金、建筑等行业的材料可靠性与使用寿命测试提供了有力的技术支撑，并为材料计量提供了强有力的量值溯源保障，具有较大的社会效益和经济效益。<SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US>
</SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US></SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'"></SPANstyle="FONT-FAMILY:TimesNewRoman"></SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US></Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal></SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'"></SPANstyle="FONT-FAMILY:TimesNewRoman"></SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US></SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'"></SPANstyle="FONT-FAMILY:TimesNewRoman"></SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US></SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'"></Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal></SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US></Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal></SPANstyle="LINE-HEIGHT:150%;FONT-FAMILY:宋体;FONT-SIZE:12pt;mso-ascii-font-family:'TimesNewRoman';mso-hansi-font-family:'TimesNewRoman'"></Pstyle="LINE-HEIGHT:150%;TEXT-INDENT:24pt;MARGIN:0cm0cm0pt;mso-char-indent-count:2.0"class=MsoNormal></SPANstyle="LINE-HEIGHT:150%;FONT-SIZE:12pt"lang=EN-US>
