It was confirmed that cracks progressed to 480 ㎛ and scale layer of 3 ㎛ or less. ... Therefore, it can be assumed that the crack occurred in the low temperature tempering process at 200° ... heat treatment, and the cracking defect on the surface of the piston can be prevented by setting the
crack condition simulating the component crack fai lure mode has been achieved. ... multiple cracks. ... The simultaneous multiple crack growth analysis in a steel structural component under cyclic fatigue
a pseudo-crack. ... From the test results. a significant retardation of mode I crack progress was monitored from some of ... Crack propagation under repeated loading was monitored and effectiveness of the devised crack retarding
evaluation of reflection cracking resistance of overlaid asphalt concrete in laboratory. ... The test method used was an accelerated reflection cracking test in shear mode, which was developed for ... In general, the greater the tensile strength of sealant, the better the crack resistance of the mixture
콜로니 2개와 파란 콜로니 1개) 2. 25 μl의 10 mM EDTA를 각 튜브에 첨가한 다음 뚜껑을 닫고, vortex를 사용하여 현탁시켰다. 3. 25 μl의 신선한 2x cracking ... Cracking 2x buffer (50 ml 당) containing - 2 ml 5M NaOH - 2.5 ml 10% SDS (sodium dodecyl sulfate) - 10 ... 지금까지 건강인의 장관에 상재하고 있기 때문에 장관 내에 존재하는 한 병원성 은 없는 것으로 여겨지며 특히 대장균 K12주(E. coli K-12)는 분자생물학 과 생물공학 의 연구재료로서
Using IoT-based air content management, we confirmed the reduction in concrete pavement durability cracks ... In addition, we analyzed the number of durability cracks according to the freeze–thaw cycles in the field ... We confirmed that the performance of concrete pavements changed even with variations in air content within
moduli combinations and crack ratios using the modified crack closure integral technique and J-integral ... The energy release rates for the tip of the crack in the interface were calibrated for several different ... for the peny-shaped interface crack in an infinite medium 한국전산구조공학회 한국전산구조공학회 논문집 양성철, 서영찬, 박종원
is used to compute crack propagation life. ... crack initiation life, and ZENCRACK, which is special purpose software for crack growth prediction, ... The crack of this kind, however, cannot be made by conventional machining, but should be made under thermal
of reflection cracking. ... In order to achieve the goal, the expedited reflection cracking test method was developed and applied ... fatigue life of polymer-modified and reinforced overlay asphalt mixtures with respect to reflection cracking
such as stress corrosion cracking occurred by synergism effect between mechanical factor and corrosion ... environment In this paper, the effect of corrosion environment on the stress corrosion cracking of Al-brass ... Based on the test results, the behavior of polarization, stress corrosion crack propagation and dezincification
the onset of crack growth together with the corresponding growth angle. ... The method can analyze dynamic crack problems using only node model, which is completely free from the ... A crack is modeled by the visibility criterion and dynamic energy release rate is evaluated to decide
crack cases. ... Determination of crack depth in filed using the self-calibrating surface wane transmission measurement ... Then artificial neural networks (NNs) using the PCA-compressed TRFs is applied to assess the crack in
Accordingly, treatment of Ca-coated bag and plant oil was become judgment to reduction effect of cracking ... The occurrence of cracking fruit was not affect by bag kinds in 'Campbell Early'. ... The cracking fruit occurrence of and 'Kyoho' decreased significantly by bagging to each before July 5
In addition, not only tension crack but also compression crushing was analyzed by utilizing field contour ... takes tension and compression strength of deteriorate concrete into consideration during FE modeling ... The realistic evaluation for structural damage was conducted by using the nonlinear material model that
with the defects of crack and hole. ... The fracture of mechanical structure is caused by internal cracks in the material. ... respectively at the inclined angles of center crack as 22.5°, 45° and 67.5°.
And unlike cracks in homogeneous materials, a bimaterial interface crack always induces both opening ... and shearing modes of stress in the vicinity of the crack tip. ... And a program which can evaluate the J -integral for a crack in a weld of dissimialr steels is developed
an orthotropic cylindrical inclusion and a crack. ... anisotropic inclusions and cracks. ... of multiple anisotropic inclusions and cracks subject to external loads.
If the negative shear displacement is applied, the reduction in the energy release rate in crack tip ... If the positive shear displacement is applied, the increasing in the energy release rate in the crack ... length effect of the downward inclined surface to apply the inclined interface surface design of the composite
This study was conducted to develop a test system for evaluating resistance against reflection cracking ... in terms of the difference in the resistance against reflection cracking. ... Reflection cracking resistance of selected polymer modified asphalt(PMA) mixtures with and without reinforcement