نتایج جستجو برای: dynamic stress concentration
تعداد نتایج: 1186827 فیلتر نتایج به سال:
the main contribution of the present work is to investigate the capability of exponential-type constitutive equationto model the warm deformation flow curves of a eutectoid steel in the temperature range of 620-770 °c andat the strain rates in the range of 0.01-10 s-1 conducted on a gleeble-1500 thermomechanical simulator. warmdeformation in this temperature range facilitates the occurrence of ...
We studied the robustness of photosynthetic metabolism in the chloroplasts of C(3) plants under drought stress and at high CO(2) concentration conditions by using a method called Minimization of Metabolic Adjustment Dynamic Flux Balance Analysis (M_DFBA). Photosynthetic metabolism in the chloroplasts of C(3) plants applies highly cooperative regulation to minimize the fluctuation of metabolite ...
In coal mining hard roofs are one of the main factors causing the occurrence of rock bursts in working panels. To solve this problem, the solid backfill coal mining (SBCM) technique is proposed and used as an effective measure to prevent the rock bursts induced by hard roofs. However, due to the different backfill ratios of working planes, the control effects on hard roofs are quite unique. By ...
Introduction: Metabolic disorders are affected by negative stress experiences in the early stages of life. Accordingly, in this study, the effects of stress during pregnancy on oxidative status and glucose homeostasis in pubertal male Wistar rats were investigated. Materials and Methods: After pregnancy, female rats (200±30 g) were divided into 2 groups (6 rats per group) of stress and non-stre...
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the hot compression tests were carried on x45crniw189 valve steel (x45) in the temperature rangeof 1000– 1200 °c and the strain rate range of 0.004 – 0.5 s-1 in order to study the high temperaturesoftening behavior of this steel. for the exact prediction of flow stress, the effective stress-effectivestrain curves were obtained from experiments under various conditions. on the basis of experimen...
Abstract Heat transfer and stress distribution are studied using computational fluid dynamic structural simulation for a conformal cooling die insert made of Maraging M300 steel by selective laser melting. The phase transformation water is to understand the effects concentration on life. results validated in production. failure has been revealed result enhanced corrosion directly related format...
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