استاندارد bend - پروژه ها

استاندارد ASTM E290 در خصوص نحوه انجام تست خمش و جزییات آن

استاندارد ASTM E290 در خصوص نحوه انجام تست خمش و جزییات آن
نسخه ۲۰۱۳
۱۰ صفحه
 به زبان انگلیسی
Standard Test Methods forBend Testing of Material for Ductility
 
 
Scope1.1 These test methods cover bend testing for ductility of materials. Included in the procedures are four conditions of constraint on the bent portion of the specimen; a guided-bend test using a mandrel or plunger of defined dimensions to force the mid-length of the specimen between two supports separated by a defined space; a semi-guided bend test in which the specimen is bent, while in contact with a mandrel, through a specified angle or to a specified inside radius (r) of curvature, measured while under the bending force; a free-bend…