stress concentration factor for welded joints

... 16 Figures (5 to 8) show stress distribution contour in ydirection for one of the models under analysis (model 2) It was observed that for fillet welded joints, stress concentrations occur at ... Description of Cruciform Welded Joint loaded cruciform welded joints with different geometries The crack growth was simulated over a suitable step of increment according to welded plate thickness ... Results and Discussion 6.1.1 Stress Analysis The stress analysis was carried out under given load condition with plane strain state With fillet welded joints, stress concentrations occur at the...

Ngày tải lên: 24/05/2014, 20:40

... Types of Welded Joints The current Recommendations apply to the improvement of welded planar joints or welded hollow section connections with plate thickness from to 50 mm for steel, to 20 mm for ... Documentation Fatigue Strength of Joints Improved by Needle Peening 6.9 Stress Ratio Effects for Joints Improved by Needle Peening 6.10 Thickness Effect for Joints Improved by Needle Peening ... Documentation Fatigue Strength of Joints Improved by Hammer Peening 5.9 Stress Ratio Effects for Joints Improved by Hammer Peening 5.10 Thickness Effect for Joints Improved by Hammer Peening...

Ngày tải lên: 24/03/2014, 02:20

... the stress concentrations not interact and analyze the localized effect of each stress concentration separately Compute the actual stress in the shoulder by taking into account the stress concentration ... indicative of the stress intensity which is directly proportional to the maximum shear stress and the principal stresses: σ Intensity = 2τ max = σ − σ Stress- concentration factors can be developed ... Tutorial 4-14: Stress Concentration 5/9 Young, W C and R G Budynas, Roark’s Formulas for Stress and Strain, 7th ed., McGraw-Hill, 2001 Application to Ductile and Brittle Materials for Static Loading...

Ngày tải lên: 27/01/2014, 05:20

... 40 °C, raised to 150 °C at 15 °CÆmin)1, held for min, then raised to 300 °C at 10 °C min)1 and Structure of acidic stress response factor HP1286 held for min; and GC-MS interface temperature of ... dimer formation The interactions between the two monomers are mainly hydrophilic, including the formation of 18 hydrogen bonds, but a few hydrophobic interactions are also present (see Table for ... in the general stress response in bacteria [28] Moreover, it has been already observed that acid adaptations, like those described before, confer resistance to a wide range of stress conditions...

Ngày tải lên: 16/02/2014, 14:20

... choice of gene for transcription within the locus [13] The LCR is characterized by the presence of five DNaseI hypersensitive sites (HS) that encode multiple DNA motifs for transcription factors The ... the neighbouring probes and 3, suggesting that TCCCCTCCC sequence unique for probe was the motif for the transcription factor AntiEKLF and anti-Sp1 antibody did not influence the shift band mobility, ... independent transfection assays were performed EMSA EMSA reactions were performed using nuclear extracts of HEL cells and [32P]dCTP-labelled double-stranded probes (Fig 2B) For supershift assays, lL of...

Ngày tải lên: 16/03/2014, 19:20

... scale was used on the y axis for the experimental data as used for the model simulation Minor levels of basal phosphorylation could not be eliminated by starvation for h For phosphorylated JAK1, ... starvation medium for h (Williams Medium E supplemented with mm l-glutamine) The time-course experiment was performed according to the protocol for Huh7.5 cells Quantitative immunoblotting For immunoprecipitation, ... additionally involves interferon regulatory factor (IRF9 ⁄ p48), which, together with phosphorylated STAT1 ⁄ STAT2 dimers, forms the interferon-stimulated gene factor (ISGF3) complex ISGF3 is translocated...

Ngày tải lên: 23/03/2014, 03:20

... establish VOC concentration limits for 14 categories of automotive refinishing products for use in Canada These products are required to meet the established concentration limits before they can ... Environment Canada Contact Information 10  Annex 1: List of Product Categories and VOC Concentration Limits 11  ii Volatile Organic Compound (VOC) Concentration Limits for Automotive Refinishing ... apply to products that are: i manufactured, imported or sold for the purposes of export; ii used for application in a factory or a shop for purposes other than automotive refinishing, on products...

Ngày tải lên: 28/03/2014, 19:20

... of the reference stress σnom depends on the problem at hand In Table 6-1 the reference stress is defined for each particular stress concentration factor 6.2 STRESS CONCENTRATION FACTORS Figure 6-1 ... in stress near a stress raiser, the stress concentration factor or theoretical stress concentration factor is defined as the ratio of the calculated peak stress to the nominal stress that would ... average stress on the section be the same in the case of stress concentration as it would be if there were a uniform stress distribution Stress concentration results not only in unusually high stresses...

Ngày tải lên: 24/05/2014, 20:37

... study, primers for sPLA2IIA are: forward 5'- GACTCATGACTGTTGTTACAACC-3' and reverse 5'-TCTCAGGACTCTCTTAGGTACTA-3' that amplify a 493 bp fragment, and primers for β-actin are: forward 5'-TGGAGAAGAGCTATGAGCTGCCTG-3' ... incubated at 37°C for 18 hours to promote oligomerization Aliquots of the oligomerized Aβ1–42 were stored in liquid nitrogen until experiments were performed Twenty four hours before treatments, ... exchanged for serum-free DMEM Cells were then incubated in serum-free DMEM with IL-1β (20 ng/ml), IFNγ (100 ng/ml), or 2.5 μM Aβ1–42 for 24 h at 37°C After incubation, cells were processed for RNA...

Ngày tải lên: 19/06/2014, 22:20

... enhancement factor for the arrays of nanoemitters should be strongly dependent on the density and arrangement of nanoemitters It is therefore relevant to explain the anomalously low field enhancement factor ... function, Ф = 4.4 eV [14]) for a single carbon nanotube [15], nanofiber, or nanoflakes [16] with a work function of Ф = 5.1 m 0.1 eV , the reported field enhancement factors for nanogaps of d = 60 ... constitutes a 75-nm vacuum nanogap A macroscopic FE measurement for the arrays of emitters with a 17-µm vacuum microgap was also performed for a fair comparison Keywords: quantum screening effects;...

Ngày tải lên: 21/06/2014, 17:20

... Europe, Can J For Res 17 (1987) 1050–1059 [19] Rutherford T.A., Mamiya Y., Webster J.M., Nematode-induced pine wilt disease: factors influencing its occurrence and distribution, For Sci 36 (1990) ... China, For Pest Dis (1989) 38–41 [26] Wang S.F., Monochamus alternatus, in: Xiao G.R (Ed.), Forest insects of China, Chinese Forestry Press, Beijing, China, 1992, pp 483–485 [22] Swaine J.M., The factors ... we observed that the lowest SCP for the overwintering larvae was –24 ◦ C, and that the LT95 for the overwintering larvae was about two months at –10 ◦ C Therefore, the extreme minimum temperature...

Ngày tải lên: 07/08/2014, 16:20

... advanced paternal age is more of a risk factor for schizophrenia than maternal age Birth rank and short birth interval were previously found to be risk factors for schizophrenia [30-32] The effect ... Mann-Whitney U test) for continuous variables Probability values of P < 0.05 were considered statistically significant Multiple logistic regression analysis was performed with adjustment for independent ... Clinical Interview for DSM Disorders (SCID), previously validated for diagnosis of schizophrenia in the Iranian population Differences between study groups were examined using the c2 test for categorical...

Ngày tải lên: 09/08/2014, 01:21

... to match three controls for each of the 75 RA cases for age, sex and visit date Controls were matched for age at diagnosis of CAD and year of onset in order to control for shifts in practice and ... involvement compared with 23% for the control patients RA is an independent risk factor for increased CAD severity Table shows the ordinal logistic regression model results for number of diseased vessels ... require comparing RA patients that are matched for disease severity but are disparate for CAD Study limitations We adjusted for traditional Framingham risk factors that are commonly considered in epidemiological...

Ngày tải lên: 09/08/2014, 06:23

... All of the factors that were significant in the univariate analysis were included in the logistic regression analysis All analyses were performed using the SPSS program version 11.0.1J for Windows ... to the incidence of POPF after pancreaticosplenectomy for advanced gastric cancer in our previous study [22], none of these factors, except for BMI, was positively associated with the incidence ... Therefore, there might be the risk for damaging the pancreatic substance without noticing In our present study, no prospective data are available to correlate the texture of the pancreas Therefore,...

Ngày tải lên: 09/08/2014, 07:21

... 648-patient cohort, 5-year local control rates were 87% for T1, 78% for T2, and 68% for T3 in younger patients, but 72% for T1, 67% for T2, and 54% for T3 in elderly patients aged 65 or over (p < 0.05) ... Dental Factor are potential Prognostic Factors Tumori 2009, 95:461-6 doi:10.1186/1748-717X-5-116 Cite this article as: Yamazaki et al.: Age is not a limiting factor for brachytherapy for carcinoma ... done under local anesthesia For patients in the LDR group, the treatment sources consisted of an Ir-192 pin for 12 patients, a Ra-226 needle for and a 198Au grain for one patient Each needle...

Ngày tải lên: 09/08/2014, 09:20

... differences between the groups were observed for the other SPTs, for the presence of freckles, for blue/grey eye colour, for fair hair colour, and for regular skin care The distributions of SPT, ... continued to present in one patient for month, in four patients for months, and in three patients for months after cessation of naproxen Page of (page number not for citation purposes) Arthritis ... Page of (page number not for citation purposes) 0.002, t-test for independent samples), as well as between the children with PP and the control group (P = 0.001, t-test for independent samples)...

Ngày tải lên: 09/08/2014, 10:20

... for aboriginal status across the levels of adherence were substantially different, ranging from 0.58 (95%CI: 0.37–0.92) for

Ngày tải lên: 10/08/2014, 05:20

... distortion Discussion Bioprosthetic calcification is a multifactorial process; contributing factors include the type of implant used, mechanical stress, preservation method, patient age and technical ... doi:10.1186/1749-8090-5-77 Cite this article as: Cereijo et al.: Is distortion of the bioprosthesis ring a risk factor for early calcification? Journal of Cardiothoracic Surgery 2010 5:77 Author details Department ... leaflet mounted outside the stent and fixed to the Dacron ring, resulting in a higher mechanical stress In our patients other casual relationship was no found Conclusion In our experience there...

Ngày tải lên: 10/08/2014, 09:22

... masked, the rupture in their case Previous uterine surgery is a well-known risk factor for uterine rupture even before labor, as previously described [2-4] Previous myomectomy, inducing a tight ... gastric peptic ulcer perforation was covered by the adhesion of the abdominal wall to the perforation sites, which masked typical symptoms and signs of gastric ulcer perforation [7] We note the ... review Consent Written informed consent was obtained from the patient for publication of this case report and any accompanying images A copy of the written consent is available for review by the Editor-in-Chief...

Ngày tải lên: 10/08/2014, 23:20

... provoking factors is important but often elusive There are several reports for the provoking factor for the peripheral initiation and central initiation of the TCR To date, several risk factors for ... information about TCR Consent Written informed consent was obtained form the patient for publication of this case report and accompanying images A copy of the written consent is available for ... alfentanil), b-blockers, and calcium channel blockers [3,8] Until now, no report for intracranial infections as a provoking factor for intraoperative TCR occurrence has been identified Intracranial infections,...

Ngày tải lên: 11/08/2014, 02:22