Quasi-static and medium strain-rate (10-20 mm/mm/s) tests may be adequate in providing data for characterizing the dynamic behavior of trim materials for CAE applications. Strain gages can be used to measure the quasi-static and in some cases, dynamic strain. Strain gage effect on material...
2.1.3Determination of strain rate The determinationof strain ratein SHPB testing has a key influence on test results. Thestrain raterepresents the change in strain with respect to time. BecauseFRCis non-uniform, it is difficult to achieve a constant strain rate. To date, there is no standard...
Each test condition shows a linear response in the elastic regime and hence, the applied stress rate was calculated from the Young's modulus of each stress strain curve respectively. When the loading approached the yielding point, the tensile loading was switched to be strain-controlled in the ...
At low test temperatures, the critical strain, ε_c necessary to initiate serrated yielding increased remarkably with increasing strain rate, ε. At high test temperatures, however, ε_c decreased significantly with increasing ε. In both cases the relationship between ε_c and εcould be ...
tensile testing/ uniaxial tension testingrubbertrue strain ratedampingelastomersElastomers are widely used for damping parts in different industrial contexts because of their remarkable dissipation properties. Indeed, they can undergo severe mechanical loading conditions, i.e., high strain rates and large ...
The coefficient ( m value) of strain rate sensitivity was determined using rate sudden changing and iso-strain rate tensile test.The effects of stretching speed change and different speed changing positions on the m value determined were discussed. The results obtained show the m value determined ...
Dynamic Tensile Tests of Auto-Body Steel Sheets with the Variation of Temperature the quasi-static state is obtained with the static tensile test and the one at the intermediate strain-rate is obtained with the high speed tensile test... HJ Lee,JH Song,H Huh - 《Solid State Phenomena》 被...
请问在tensile jump test 上如何获得 strain rate sensitivity(m)? 看文献中,由a图,得到了b图。但是我按照某公式计算,但是算出来不对。所以 我觉得肯定是我算错了。 请大家帮帮忙,看看该怎么计算?谢谢啦 DSC09006.JPG DSC09007.JPG
The strength of materials depends on the rate at which they are tested, as defects, for example dislocations, that move in response to applied strains have intrinsic kinetic limitations1–4. As the deformation strain rate increases, more strengtheni