Evaluation of Constants in Fracture Mechanics by Means Non-destructive Testing of Al+3.5%Mg Alloys

作     者：Alexander Popov Georgy Dobrev 

作者机构：Department of Solid MechanicsInstitute of Mechanics-Bulgarian Academy of SciencesSofia 1113Bulgaria Institute of Metal ScienceEqipmentand Technologies-BASSofia 1574Bulgaria 

出 版 物：《材料科学与工程（中英文B版）》 (Journal of Materials Science and Engineering B)

年 卷 期：2018年第8卷第5期

页      面：204-207页

学科分类：08[工学] 

主　　题：Constant in fracture mechanics Al+3.5%Mg alloys ultrasonic hardness 

摘      要：The constants in fracture mechanics are fracture toughness(for plane strain),critical value of J—integral,critical value of crack tip opening *** testing under certain conditions to determine them is *** are complicated,long and expensive *** practice,it is interesting to determine the constant in fracture mechanics for elements of constructions by means of non-destructive testing(NDT)(non-destructive evaluations,NDE)from Al+3.5%Mg alloys(according EN 1706).