Numerical and experimental study of cruciform specimens subjected to biaxial tensile test

7th International Conference on Advanced Concepts in Mechanical Engineering

Andrusca, L.^1 ; Goanta, V.^1 ; Barsanescu, P.D.^1 ; Steigmann, R.^2

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Romania^1

National Institute of RandD for Technical Physics, Iasi, Romania^2

关键词: Biaxial experiments;    Biaxial tensile tests;    Cruciform specimens;    Engineering applications;    Experimental procedure;    Multiaxial stress state;    Numerical and experimental study;    Universal testing machines;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012091/pdf
DOI  :  10.1088/1757-899X/147/1/012091

来源: IOP

【 摘 要 】

Multiaxial stress states are very common in engineering applications. To obtain a plane stress state in a material are used different experimental procedures. Biaxial tensile tests of cruciform specimens represent one of the most versatile techniques with accurate results for a wide range of materials. Specimen geometry and size must be adapted to biaxial experiments that use devices attached to universal testing machine. Biaxial tensile tests are performed using cruciform specimens optimized by a numerical study through finite element analysis and a custom built attachable device developed. The results obtained show that the method proposed in this paper can be used with good results to characterize the behaviour of ductile materials.