Assumptions and reality: Stress states in uniaxial tension test

2015 ◽  
pp. 373-378
2012 ◽  
Vol 152-154 ◽  
pp. 1406-1412
Author(s):  
Yan Li Song ◽  
Lin Hua

In this paper, the rule of mixture, which is often used to derive the weld properties from the uniaxial tension test of a subsize welded specimen, was improved by taking the residual welding strain/stress into account and assuming iso-strain increment across the welded specimen. Based on this improved method, hardening data of two different tailor welded blanks were determined. Erichsen cupping tests were performed experimentally and numerically to evaluate the effects of welding residual strain and stress on TWB formability. The results indicate that: (1) the residual strain and stress affect the formality of TWBs to some extent and (2) neglecting the welding residual strain and stress may predict a delayed crack onset and relatively large values in the maximum punch load and Erichsen index.


1995 ◽  
Vol 111 (1) ◽  
pp. 25-29 ◽  
Author(s):  
Katsunori FUKUI ◽  
Fengnian JIN ◽  
Seisuke OKUBO

2005 ◽  
Vol 16 (1) ◽  
pp. 77-86 ◽  
Author(s):  
Hiroshi Akita ◽  
Hideo Koide ◽  
Hirozo Mihashi

2017 ◽  
Vol 259 ◽  
pp. 35-40 ◽  
Author(s):  
Martin Tipka ◽  
Jitka Vašková

The paper deals with the determination of the modulus of elasticity in tension for cementitious composites and comparing these values with the values of modulus in compression. It describes several methods, which are usually used for determination of modulus of elasticity of concrete and fibre reinforced concrete. In the experimental program modulus of elasticity in compression and tension of various types of concrete and fibre reinforced concrete were compared. The classic test with prismatic specimens was used for determination of the modulus in compression; a new arrangement of uniaxial tension test of cementitious composites was used for determination of the modulus of elasticity in tension.


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