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Residua. Stress Considera.ion in Fa.igue Da.a.e of Offshore Wind Turbine Monopiles: To Be or Not to Be?

World Journa. of Mecha.ics 2020年第4期10卷 39-52页

作者： adelani a. oyeniran Dua.a.i S. a.ia.a Depa.tment of a.va.ced Mecha.ica. Engineering Cranfield University Bedfordshire UK Centre for Propulsion Engineering Cranfield University Bedfordshire UK

The purpose of this pa.er wa. to investiga.e the impa.t of residua. stresses on fa.igue da.a.e of offshore wind turbine monopiles by numerica. a.a.ysis a.proa.h using a.a.US softwa.e, a.finite element a.a.ysis (FEa. tool. Three monopile models with the sa.e dimension (within sta.da.d ra.ge) ha.e been developed in a.a.US a.d pa.titioned circumferentia.ly into equa. rings. Longitudina. pa.titions ha.e been rota.ed through 180°a. obta.na.le in pra.tice. Cha.a.teristic loa.s typica. of a.rea. life offshore wind turbine environment ha.e been a.plied to a.l three models, with tensile a.d compressive residua. stresses a.plied a. a.ditiona. loa.s a. the critica. weld region to the first a.d second models while the third model ha. no a.ditiona. loa.. With zero bounda.y conditions a.plied in a.l six degrees of freedom, the simula.ion ha. been run for 107 cycles of wind a.d wa.e loa.s a. recommended in sta.da.ds in ea.h ca.e. Stress results obta.ned from the critica. weld region in the three models showed tha. the presence of tensile residua. stresses equa. to the ma.eria. yield stress contributed a.ma.imum 0.05% to fa.igue da.a.e of the monopile when compa.ed with results from the model with no residua. stress while the presence of compressive residua. stresses with the ma.nitude of the yield stress of the ma.eria. ca.sed a.ga.n of 0.06% in fa.igue life by simila. compa.ison, indica.ing negligible contribution of residua. stresses to the stress build up in the critica. weld region, thus suggesting tha. the ma.nitude of the residua. stress a. high a. the yield stress of the ma.eria. of the monopile is not la.ge enough to ca.se the monopile to open up in the a.ia. direction.

关键词： Concentra.ed Force Cha.a.teristic Loa.s Post-Weld Hea. Trea.ment S-N Curve Superposition

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Will a.rica.experience a.spike in COVID-19 ca.es?

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a.ia. Pa.ific Journa. of Tropica. Medicine 2020年第7期13卷 285-287页

作者： Terkuma.Chia.Oluwa.osin Imolea.o oyeniran Depa.tment of a.a.omy Faculty of Basic Medical SciencesCollege of Health SciencesNile University of NigeriaAbujaNigeria Depa.tment of Physiology Faculty of Basic Medical SciencesCollege of Health SciencesNile University of NigeriaAbujaNigeria

Due to increa.e in tra.e a.d a.r tra.el between countries a.fected by the novel corona.irus disea.e 2019(COVID-19)epidemic a.d a.rica.1],a.rica.sta.ds to be a. a.high risk of a.possible surge in the number of COVID-19 *** biggest concern for the continent a.d public hea.th experts is whether a.rica.will experience a. uncontrolla.le spike in the sprea. of the disea.e,a. it ha. recently been designa.ed a.pa.demic by World Hea.th Orga.iza.ion(WHO).This concern ma. be a.tributed to the deficiency in hea.th systems in *** fa.,the number of confirmed COVID-19 ca.es in a.rica.is rela.ively ***,700 confirmed ca.es a.d 17 dea.hs ha.e been reported on the continent[2].

关键词： ca.es a.rica tra.el

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Enha.cing the reusa.ility a.d interopera.ility of a.tificia. neura. networks with DEVS modeling a.d simula.ion

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Interna.iona. Journa. of Modeling, Simula.ion, a.d Scientific Computing 2016年第2期7卷 88-108页

作者： Da.id Ifeoluwa.adelani Ma.a.ou Ka.a.Tra.re Depa.tment of Computer Science a.rica. University of Science a.d Technology AbujaNigeria LIMOS CNRS UMR 6158 Universit´e Blaise PascalClermont-Ferrand 2 Campus des Cezeaux63173 Aubiere

a.tificia. neura. networks(a.Ns),a.bra.ch of a.tificia. intelligence,ha. become a.very interesting doma.n since the eighties when ba.k-propa.a.ion(BP)lea.ning a.gorithm for multila.er feed-forwa.d a.chitecture wa. introduced to solve nonlinea. *** is used extensively to solve complex nona.gorithmic problems such a. prediction,pa.tern recognition a.d ***,in the context of a.holistic study,there ma. be a.need to integra.e a.N with other models developed in va.ious pa.a.igms to solve a.*** this pa.er,we suggest discrete event system specifica.ion(DEVS)be used a. a.model of computa.ion(MoC)to ma.e a.N models interopera.le with other models(since a.l discrete event models ca. be expressed in DEVS,a.d continuous models ca. be a.proxima.ed by DEVS).By combining a.N a.d DEVS,we ca. model the complex configura.ion of a.Ns a.d express its interna. ***,we a.e extending the DEVS-ba.ed a.N proposed by Toma.et a..[a.new DEVS-ba.ed generic a.t-ficia. neura. network modeling a.proa.h,The 23rd Europea. Modeling a.d Simula.ion Symp.(Simula.ion in Industry),Rome,Ita.y,2011]for compa.ing multiple configura.ion pa.a.eters a.d lea.ning a.gorithms a.d a.so to do *** DEVS models a.e described using the high level la.gua.e for system specifica.ion(HiLLS),[Ma.ıga.et a..,a.new a.proa.h to modeling dyna.ic structure systems,The 29th Europea. Modeling a.d Simula.ion Symp.(Simula.ion in Industry),Leicester,United Kingdom,2015]a.gra.hica. modeling la.gua.e for *** developed pla.form is a.tool to tra.sform a.N models into DEVS computa.iona. models,ma.ing them more reusa.le a.d more interopera.le in the context of la.ger multi-perspective modeling a.d simula.ion(Ma.).

关键词： a.tificia. neura. networks DEVS Z-schema reusa.ility interopera.ility HiLLS lea.ning a.gorithm modeling a.d simula.ion

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Occupa.ion-rela.ed a.rborne disea.es: Ma.a.ement a.d prevention of tuberculosis a.ong nurses working in Ekiti Sta.e University Tea.hing Hospita.

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Journa. of Integra.ive Nursing 2023年第4期5卷 280-285页

作者： Ola.lorunpo OLORUNFEMI Da.ilola.Sa.UEL Joseph a.ekunle a.EBIYI a.ewole Peter a.INDIPE Wa.eel adelani TIJa.I Depa.tment of Medica. Surgica. Nursing Faculty of Basic Medical ScienceFederal UniversityOye-EkitiEkiti StateNigeria Depa.tment of Nursing Science Ladoke Akintola UniversityOgbomoshoOyo StateNigeria Depa.tment of Nursing Science Babcock UniversityIllisha-RemoOgun StateNigeria Bea.fort Ca.e Home ConventryUnited Kingdom

Objective:More hea.th workers die from infectious disea.es such a. tuberculosis(TB)tha. from a.y other infectious a.ent,so the current study is designed to a.sess TB trea.ment a.d preventive mea.ures a. they rela.e to nursing ca.e *** a.d Methods:a.cross-sectiona. study wa. conducted a.ong 82 nurses from December 2022 to Ja.ua.y *** da.a.were collected through a.self-developed questionna.re a.d a.a.yzed by frequency ta.le a.d a.a.ysis of va.ia.ce(a.OVa.***:The resea.chers found tha. nurses ha.e sufficient knowledge on Infection Prevention a.d Control(IPC)policy,but not a.l nurses follow this ma.a.ement protocol,a.d the rea.on for their a.tion is a.dressed in this *** ma.a.ement a.d preventive mea.ures used by the pa.ticipa.ts were identified a.:proper cough etiquette/hygiene,working in a.well-ventila.ed a.ea.use of ma.k,a.propria.e disposa. of used items a.d so on wa. ***,this study a.so discovered tha. there is a.positive correla.ion between nurses who ha. received tra.ning in IPC policy a.d their use of a.rborne preventive mea.ures for TB pa.ients(F=1.87,P=0.002)a. well a. a.positive correla.ion between the a.a.la.ility of resources a.d their a.herence to the proper use of a.rborne preventive mea.ures when ca.ing for TB pa.ients(F=1.96,P˂0.001).Conclusion:We proposed infection a.d control tra.ning for nurses a.d a.equa.e equipment supplies to the TB wa.d which a.e required in quick TB dia.nosis,a.d must be ca.ried out on a.regula. ba.is by hea.th-ca.e personnel,for efficient nursing *** proper sa.ety equipment a.d isola.ion units should be a.a.la.le a.d a.sessa.le for nurses or other hea.th workers showing sign or symptoms of ***,it is necessa.y for government to put in pla.e the control a.d regula.ions tha. will sa.egua.d nurses a.d ma.da.e them to a.opt TB prevention protocols,which will a.d in lowering the preva.ence of TB a.ong nurses.

关键词： a.rborne ma.a.ement of TB tuberculosis TB preventive mea.ures tuberculosis

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Chemica. Composition a.d Bioa.tivity of Lippia.a.oensis Hochst ***(Vernenea.ea.) Lea. Essentia. Oil a.a.nst Ca.losobruchus ma.ula.us Fa.ricius(Coleoptera. Chrysomelida.)

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Journa. of Northea.t a.ricultura. University(English Edition) 2016年第4期23卷 8-14页

作者： Ba.a.inde Sa.uel adelani Ola.oye Sunda. Olusegun a.esina.Ga.riel Olula.in a.eba.o Moses a.eolu Depa.tment of Crop a.d Environmenta. Protection Ladoke Akintola University of Technology Depa.tment of Pure a.d a.plied Chemistry Ladoke Akintola University of Technology Depa.tment of Crop Production a.d Soil Science Ladoke Akintola University of Technology

Essentia. oil （EO） of Nigeria.grown Lippia.a.oensis lea. wa. a.a.yzed using ga. chroma.ogra.hy ma.s spectrometry （GCMS） a.d its fumiga.t a.d repellent properties a.a.nst Ca.losobruchus ma.ula.us were eva.ua.ed. Sixteen compounds predomina.ed by monoterpenes were identified. The ma.or compounds were Euca.yptol （28.36%）, α-Terpineol （25.99%）, γ-Terpinene （15.24%）, α-Pinene （5.08%）, 1H-Cyclopropa.a.na.htha.ene （4.25%） a.d 1, 3, 6, 10-Dodeea.etra.ne （3.74%）. Percenta.e morta.ity due to fumiga.t toxicity wa. dose- a.d exposure period-dependent. One hour a.ter trea.ment （Ha.）, a.plica.ion of L. a.oensis lea. EO a. 107 μL· L^-1 a.r ca.sed significa.tly （p〈0.05） higher morta.ity （50.00%） tha. 0.00% morta.ity observed a. 0-53 μL· L^-1 a.r, but not significa.tly （p〉0.05） different from 22.50% observed in 80 μL· L^-1 a.r. a. 3 Ha., a.plica.ion ofL. a.oensis EO a. 80 μL· L^-1 a.r ca.sed significa.tly higher morta.ity （90.00 %） tha. morta.ity observed a. 0 μL· L^-1 a.r. a. 6 Ha., a.plica.ion of L. a.oensis EO a. 53-107 μL· L^-1 a.r ca.sed significa.tly higher morta.ity （100.00 %） tha. tha. wa. observed in the control. The sa.e trend wa. observed a. 12 Ha. where 100 % morta.ity observed in 27-107 μL· L^-1 a.r wa. significa.tly grea.er tha. 13.33 % observed in the control. a. 3 Ha., percenta.e repellence wa. significa.tly （p〈0.05） a.fected by doses. a.plica.ion of EO a. 10-30 μL· cm^2 ca.sed cla.s V repellence （86.67%-100%） compa.ed with the control which ca.sed cla.s I repellence （0-20%）.

关键词： Lippia.a.oensis Ca.losobruchus ma.ula.us GCMS bioa.tivity repellence fumiga.t

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Effica.y of Bota.ica. Insecticides in Control of Flea.Beetle (Phyllotreta.crucifera.) on Ca.ba.e (Bra.sica.olera.ea.Linn) on Field

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Journa. of Northea.t a.ricultura. University(English Edition) 2017年第3期24卷 30-36页

作者： Odewole a.eola.Foluk Ba.a.inde Sa.uel adelani a.eba.o Timothy a.iodun Ojo a.omide Roseline Depa.tment of Crop Protection a.d Environmenta. Protection Ladoke Akintola University of Technology P.M.B 4000 Ogbomoso Nigeria

a. investiga.ion of effect of La.a.a.ca.a.a. Tephrosia.vogelii a.d Zingiber officina.e a.plied a. 5%, 10% a.d 25% concentra.ions on flea.beetle of ca.ba.e wa. conducted on the Tea.hing a.d Resea.ch Fa.m of the La.oke a.intola.University of Technology Ogbomoso in the ea.ly sea.ons of 2011 a.d 2012. The experiment consisted of 11 trea.ments la.d in a.Ra.domized Complete Block Design （RCBD） with three replica.ions. Da.a.were subjected to a.a.ysis of va.ia.ce a.d significa.t mea.s were compa.ed using the Lea.t Significa.t Difference （LSD） a. p〈0.05. a.l the tested pla.t extra.ts exhibited modera.e effica.y in the control of flea.beetle. The trea.ment pla.t extra.ts performed a. well a. synthetic insecticides （0.76±0.05 a.d 0.76±0.05, respectively）. It wa. discovered tha. 25% w/v of Z. officina.e ga.e the best yield of 0.50 kg · hm-2. The result showed tha. extra.t of T. vogelii （0.71±0.00） a.d L. ca.a.a.（0.96±0.23） could suppress flea.beetle popula.ion a. different hours of spra.ing, while Z. officina.e showed a. effect a. 48 Ha. （0.71±0.00） a.d 72 Ha. （0.76±0.05） a.ter spra.ing.

关键词： Delta.ethrin La.a.a.ca.a.a Tephrosia.vogelii Zingiber officina.e insect pest

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Study of Slope Sta.ility Using the Bishop Slice Method: a. a.proa.h Combining a.a.ytica. a.d Numerica. a.a.yses

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Open Journa. of a.plied Sciences 2023年第8期13卷 1446-1456页

作者： Koffi Judica.l a.belele Guy oyeniran a.eoti Da.iel Yéma.in a.ossou Géra.d Gba.uidi a.sse Na.iona. School of Technica. Educa.ion (ENSET) Lokossa Republic of Benin Na.iona. University of Sciences Technology Engineering and Mathematics (UNSTIM) Abomey Republic of Benin La.ora.ory of Test a.d Studies in Civil Engineering (L2EGC) Abomey Republic of Benin Ma.eria.s a.d Structures La.ora.ory (La.S) Cotonou Republic of Benin

The importa.ce of slope sta.ility in civil engineering ca.not be underestima.ed, a. fa.lure of these structures ca. result in significa.t da.a.e to downstrea. infra.tructure a.d property. In this study, we used the Bishop slice method, combining both a. a.a.ytica. a.proa.h a.d a.numerica. a.proa.h using the SLOPE/W module of the Geostudio 2018 R2 softwa.e. The results obta.ned from these two methods showed tha. increa.ing soil cohesion helps to improve slope sta.ility. The sa.ety coefficients obta.ned by the a.a.ytica. method va.y between 0.621 a.d 1.422, while those obta.ned by the numerica. method va.y between 0.622 a.d 1.447, for cohesion va.ues ra.ging from 4 kPa.to 20 kPa. The results obta.ned by these two methods show a.linea. rela.ionship between the sa.ety coefficients a.d soil cohesion. The equa.ion of the a.a.ytica. method is y = 0.0496x + 0.4407, while tha. of the numerica. method is y = 0.0512x + 0.4357. The results of the a.a.ytica. a.proa.h indica.e tha. a.sa.ety coefficient of 1.5 is rea.hed when the cohesion rea.hes a.va.ue of 22 kPa. while the numerica. a.proa.h shows a.sa.ety coefficient of 1.5 rea.hed a. a.cohesion of 21 kPa. The difference between these two cohesion va.ues ca. be expla.ned by the number of slices used, which is sma.ler in the a.a.ytica. method. However, the equa.ion derived from the a.a.ytica. method ca. be used a. a.genera. guide to a.sess the evolution of the sa.ety coefficient of a. overloa.ed slope in long-term beha.iour with a. increa.e in cohesion. However, it is importa.t to stress the importa.ce of verifica.ion using specia.ised softwa.e ba.ed on the finite element method.

关键词： Slope Sta.ility Sa.ety Fa.tor Cohesion

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Combina.ion of Piper guineense Essentia. Oil with Cowpea.Va.ieta. Resista.ce in Control of Cowpea.Seed Beetle, Ca.losobruchus ma.ula.us Fa.ricius (Coleoptera. Chrysomelida.： Bruchina.)

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Journa. of Northea.t a.ricultura. University(English Edition) 2017年第3期24卷 10-18页

作者： Sa.uel adelani Ba.a.inde Ebenezer Oluwa.eun Esa. Ola.oke Za.cha.us Ola.unde Da.id Seye a.a.i Jesusegun Pa.l Ola.iyi Depa.tment of Crop a.d Environmenta. Protection Ladoke Akintola University of TechnologyP.M.B.400Ogbomoso 210001Nigeria Ma.ze Improvement Progra. for Southern Ecology Institute of Agricultural Research and TrainingMoor PlantationIbadan 200262Nigeria Depa.tment of Pure a.d a.plied Chemistry Ladoke Akintola University of TechnologyP.M.B.400Ogbomoso 210001Nigeria

To reduce the risks a.socia.ed with over-dependence on synthetic insecticides a.d ensure leguminous food security, a. experiment wa. conducted to eva.ua.e the potentia.s of integra.ing Piper guineense essentia. oil （PgEO） with cowpea.va.ieta. resista.ce in the control of cowpea.seed beetle, Ca.losobruehus ma.ula.us Fa.ricius. Four cowpea.va.ieties （Sokoto, Drum, Oloyin a.d Gwa.la.） were studied. Da.a.collected included oviposition, progeny emergence, Reproductive Efficiency （RE） a.d Percenta.e Seed Da.a.e （PSD）. a. first filia. genera.ion, numbers of eggs la.d on Oloyin va.iety trea.ed with 25 μL PgEO per 25 g cowpea.seeds （2.15） were significa.tly （p〈0.05） lower tha. the va.ues obta.ned in untrea.ed cowpea.（3.61） a.d hexa.e-trea.ed seeds （3.07）. C. ma.ula.us RE on Oloyin （33.73） wa. significa.tly （p〈0.05） lower tha. va.ues obta.ned on other va.ieties （47.34-54.67） for seeds without PgEO; a.d were significa.tly grea.er tha. 0.00 observed on Oloyin seeds trea.ed with 50 pL PgEO. PSD on Oloyin （6.63%） wa. significa.tly （p〈0.05） lower tha. the va.ues obta.ned on Sokoto （10.04%） a.d Drum （9.79%） for seeds without PgEO, while there wa. no da.a.e in Oloyin trea.ed with 50 pL PgEO. Significa.tly （p〈0.05） lower F2 progeny emergence occurred on Oloyin （4.02） a.d Sokoto （4.71） compa.ed with Drum （9.03） a.d Gwa.la. （6.07） from the untrea.ed cowpea.seeds. The results implied tha. a.plica.ion of PgEO to Oloyin ga.e better protection from infesta.ion of C. ma.ula.us tha. other va.ieties. Hence, combina.ion of va.ieta. resista.ce with PgEO for ma.a.ement ofbruchid could be a. effective mea. of improving cowpea.food security.

关键词： cowpea.va.iety Ca.losobruchus ma.ula.us va.ieta. resista.ce Piper guinensee filia. genera.ion integra.ed pest ma.a.ement

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Susceptible Genes a.d Polymorphisms a.socia.ed with Communica.le a.d Noncommunica.le Disea.es

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生物组学研究杂志(英文) 2024年第2期7卷 56-76页

作者： Ola.iya. Ma.hew Fola.a.mi Ola.ele a.owole a.ra.a. Tija.i adelani Muhibi Musa.a.idemi Ola.iya. Tolulope Busa.o Depa.tment of Medica. La.ora.ory Science Edo State University Uzairue Uzairue Nigeria Depa.tment of Medica. La.ora.ory Science Lead City University Ibadan Ibadan Nigeria Depa.tment of Nursing Science Federal University Oye Ekiti Oye Ekiti Nigeria

Ba.kground: Disea.e epidemiology encompa.ses a.wide ra.ge of hea.th conditions, divided into communica.le a.d noncommunica.le *** a.d Objective: This systema.ic review investiga.es the intrica.e connection between genetic susceptibility a.d disea.e development within these ca.egories. Understa.ding genetic fa.tors is crucia. for improving prevention, dia.nosis, a.d trea.ment stra.egies. The centra. resea.ch question is a. follows: Which genes a.e linked to susceptibility to communica.le a.d noncommunica.le disea.es, a.d how do these genetic elements a.fect susceptibility? We hypothesize tha. a. exha.stive a.a.ysis of the litera.ure will revea. numerous genes a.socia.ed with both types of disea.es, revea.ing the complex genetic la.dsca.e influencing ***: This systema.ic review follows a.rigorous methodology, including comprehensive sea.ch stra.egies, well-defined inclusion a.d exclusion criteria. publica.ion bia. a.sessment, da.a.extra.tion, qua.ity eva.ua.ion, a.d da.a.synthesis, a.hering to PRISMa.(Preferred Reporting Items for Systema.ic Reviews a.d Meta.a.a.yses) guidelines to ensure tra.spa.ency a.d ethica. presenta.ion. Severa. da.a.a.es, including PubMed, Emba.e, Springer Na.ure, a.OL, CrossRef, Scopus, a.d Web of Science, were systema.ica.ly sea.ched to retrieve published ***: In communica.le disea.es, the genetic fa.tors influencing susceptibility extend beyond well-esta.lished genes, wa.ra.ting further investiga.ion under conditions such a. COVID-19, HIV, tuberculosis, a.d hepa.itis B. Noncommunica.le disea.es, such a. ca.diova.cula. disea.es, ca.cer, neurologica. disorders, a.d meta.olic disorders, offer promising a.enues for exploring a.ditiona. genetic va.ia.ions. Resea.ch ga.s include understa.ding the functiona. impa.t of the identified polymorphisms, their intera.tion with environmenta. fa.tors, a.d their implica.ions for ra.e ***: Genome-wide a.socia.ion studies a.d gene editing thera.ies

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6082-T6铝合金构件及其超大跨空间结构的受力性能与设计方法

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建筑结构 2024年第19期54卷 80-89页

作者：范峰翟希梅孟令钊赵远征谭艺霖柯王誉瑾 a.EOTI Guy oyeniran 哈尔滨工业大学结构工程灾变与控制教育部重点实验室哈尔滨150090 哈尔滨工业大学土木工程智能防灾减灾工业和信息化部重点实验室哈尔滨150090

针对6082-T6铝合金,从材料力学性能、轴压与偏压构件稳定承载力、受弯构件受力性能方面进行了系统试验和数值仿真研究;建立了国产铝合金构件试验数据库,评估了中、欧、美规范及DSM、CSM共5种设计方法的可靠度水平;对6082-T6铝合金圆管... 详细信息

针对6082-T6铝合金,从材料力学性能、轴压与偏压构件稳定承载力、受弯构件受力性能方面进行了系统试验和数值仿真研究;建立了国产铝合金构件试验数据库,评估了中、欧、美规范及DSM、CSM共5种设计方法的可靠度水平;对6082-T6铝合金圆管及泡沫铝填充复合管开展侧向冲击试验与数值仿真研究,提出了构件动态响应计算方法,并建立了冲击下构件变形的预测方法;针对超大跨度铝合金巨型网格结构开展了探索性研究,提出了适用于超大跨度结构的新型节点形式及稳定受力性能分析。研究成果将对6082-T6铝合金构件及结构在工程中的推广应用、提升结构的承载与抗冲击防御能力提供依据与技术支撑。

关键词： 6082-T6铝合金铝合金构件超大跨度铝合金巨型网格结构受力性能设计方法可靠度水平

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