Journal of Strain Analysis for Engineering Design最新文献_第8页

Validation of a structural model of an aircraft cockpit panel: An industrial case study 飞机座舱面板结构模型的验证:工业案例研究

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-19 DOI: 10.1177/03093247211059084

E. Patterson, I. Diamantakos, K. Dvurecenska, R. Greene, E. Hack, G. Lampeas, Marek Lomnitz, T. Siebert

{"title":"Validation of a structural model of an aircraft cockpit panel: An industrial case study","authors":"E. Patterson, I. Diamantakos, K. Dvurecenska, R. Greene, E. Hack, G. Lampeas, Marek Lomnitz, T. Siebert","doi":"10.1177/03093247211059084","DOIUrl":"https://doi.org/10.1177/03093247211059084","url":null,"abstract":"Computational models of structures are widely used to inform decisions about design, maintenance and operational life of engineering infrastructure, including airplanes. Confidence in the predictions from models is provided via validation processes that assess the extent to which predictions represent the real world, where the real world is often characterised by measurements made in experiments of varying sophistication dependent on the importance of the decision that the predictions will inform. There has been steady progress in developing validation processes that compare fields of predictions and measurements in a quantitative manner using the uncertainty in measurements as a basis for assessing the importance of differences between the fields of data. In this case study, three recent advances in a validation process, which was evaluated in an inter-laboratory study 5 years ago, are implemented using a ground-test on a fuselage at the aircraft manufacturer’s site for the first time. The results show that the advances successfully address the issues raised by the inter-laboratory study, that the enhanced validation process can be implemented in an industrial environment on a complex structure, and that the model was an excellent representation of the measurements made using digital image correlation.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91016528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

On mesoscale strain fluctuations in tensile tests on additively manufactured 17-4PH stainless steel 增材制造17-4PH不锈钢拉伸试验中尺度应变波动研究

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-18 DOI: 10.1177/03093247211060217

M. Bouaziz, Joseph Marae Djouda, F. Hild

引用次数: 0

Determination of mechanical properties from sharp dynamic indentation 尖锐动态压痕的机械性能测定

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-18 DOI: 10.1177/03093247211059255

Bowen Si, Zhiqiang Li, Gesheng Xiao, X. Shu

{"title":"Determination of mechanical properties from sharp dynamic indentation","authors":"Bowen Si, Zhiqiang Li, Gesheng Xiao, X. Shu","doi":"10.1177/03093247211059255","DOIUrl":"https://doi.org/10.1177/03093247211059255","url":null,"abstract":"In this study, a dynamic indentation test method based on the split Hopkinson pressure bar is proposed to obtain the dynamic parameters of Ludwik power law constitutive, namely, Young’s modulus E, strength coefficient K, and strain hardening index n by analyzing dynamic indentation load-indentation depth curve obtained from the theories relating to the Hopkinson pressure bar. The important parameters, namely, loading curvature C and transformation factor δ , are invoked to examine the dynamic indentation response results in a wide range of target material parameters. Finite element calculation results are processed through simulation of dynamic indentation response with broad material parameters. Furthermore, the analytical method is used to fit simulation results to obtain the analytical equations for elastic–plastic parameters and curvature parameters for the subsequent analysis. The analytical equation of forward model to predict dynamic indentation response parameter–loading curvature C of a known material is proposed. Then, the elastic–plastic parameters of unknown materials (according to Ludwik power law) are obtained by substituting the dynamic indentation response parameters into an inverse analytical equation under the two types of half-cone angle indenters. The method is verified by other typical materials, which shows that the dynamic indentation test based on the split Hopkinson pressure bar can obtain sufficient conditions to obtain dynamic mechanical properties of target materials.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84193019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Failure mechanics analysis of AISI 4340 steel using finite element modeling of the milling process AISI 4340钢铣削过程的有限元模拟失效力学分析

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-15 DOI: 10.1177/03093247211058038

Muhammed Muaz, Sanan H. Khan

{"title":"Failure mechanics analysis of AISI 4340 steel using finite element modeling of the milling process","authors":"Muhammed Muaz, Sanan H. Khan","doi":"10.1177/03093247211058038","DOIUrl":"https://doi.org/10.1177/03093247211058038","url":null,"abstract":"A slot cutting operation is studied in this paper using a rotating/translating flat end milling insert. Milling operation usually comprises up-milling and down-milling processes. These two types of processes have different behaviors with opposite trends of the forces thus making the operation complex in nature. A detailed Finite Element (FE) model is proposed in this paper for the failure analysis of milling operation by incorporating damage initiation criterion followed by damage evolution mechanism. The FE model was validated with experimental results and good correlations were found between the two. The failure criteria field variable (JCCRT) was traced on the workpiece to observe the amount and rate of cutting during the machining process. It was found that the model was able to predict different failure energies that are dissipated during the machining operation which are finally shown to be balanced. It was also shown that the variation of these energies with the tool rotation angle was following the actual physical phenomenon that occurred during the cutting operation. Among all the energies, plastic dissipation energy was found to be the major contributor to the total energy of the system. A progressive failure analysis was further carried out to observe the nature of failure and the variation of stress components and temperature occurring during the machining process. The model proposed in this study will be useful for designers and engineers to plan their troubleshooting in various applications involving on-spot machining.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84269492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The vibration of thermoelastic silicon nitride Nanobeam based on green-naghdi theorem type-II subjected to mechanical damage and ramp-type heat 基于green-naghdi定理的热弹性氮化硅纳米梁在机械损伤和斜坡型热作用下的振动

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-15 DOI: 10.1177/03093247211058241

H. Youssef, Hamzah A. Alharthi, Mohamed Kurdi

{"title":"The vibration of thermoelastic silicon nitride Nanobeam based on green-naghdi theorem type-II subjected to mechanical damage and ramp-type heat","authors":"H. Youssef, Hamzah A. Alharthi, Mohamed Kurdi","doi":"10.1177/03093247211058241","DOIUrl":"https://doi.org/10.1177/03093247211058241","url":null,"abstract":"In this work, an analysis for thermoelastic homogeneous isotropic nanobeams under damage mechanics consideration was built. Under easily supported boundary conditions with fixed side ratios, the Green-Naghdi model type-II, an extended thermoelasticity theory model, has been utilized. For the governing differential equations, the Laplace transforms technique was used on the time variable. The answers were found in the domain of the Laplace transform. Tzou’s approximation approach based on an iteration formula was used to calculate the Laplace transform inversions numerically. The numerical findings for a rectangular silicon nitride thermoelastic nanobeam have been obtained and validated. As a case study, we assumed that the beam is thermally loaded with ramp-type heat and that its two edges are simply supported. Figures representing different scenarios have been used to display the numerical results. Mechanical damage value, ramp-time heat parameter and beam thickness are all reported to have a substantial influence on all of the examined functions.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79494326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on high cycle fatigue damage characterization of FV520B steel based on the nonlinear Lamb wave 基于非线性兰姆波的FV520B钢高周疲劳损伤特征研究

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-09 DOI: 10.1177/03093247211038415

Pengfei Wang, Qiwen Zhou, Bingbing Chen, Sanlong Zheng, Chao Wang, Zengliang Gao

{"title":"Research on high cycle fatigue damage characterization of FV520B steel based on the nonlinear Lamb wave","authors":"Pengfei Wang, Qiwen Zhou, Bingbing Chen, Sanlong Zheng, Chao Wang, Zengliang Gao","doi":"10.1177/03093247211038415","DOIUrl":"https://doi.org/10.1177/03093247211038415","url":null,"abstract":"In this study, high-strength steel FV520B sheets were subjected to high-cycle tensile-tension fatigue experiments at room temperature in order to obtain fatigue-damaged specimens. Then Lamb waves were used to perform nonlinear ultrasonic testing on them to obtain the normalized relative nonlinear coefficients, β′/β0. The corresponding relationship between β′/β0 and the percentage of fatigue life was obtained. Finally, the microstructural changes of the damaged samples were observed by a scanning electron microscope in order to explore the correlation mechanism between β′/β0 and the degree of micro-defects and fatigue damage. The experimental results showed that as the number of fatigue cycles increased, β′/β0 first slowly rose, then quickly rose to reach a peak, and finally declined, which was consistent with the generation and propagation of dislocations and cracks during fatigue damage. As the length and number of microcracks increased, β′/β0 also increased, especially in the initial stage of fatigue crack initiation. β′/β0 was very sensitive to the size of fatigue cracks, so the change of β′/β0 can be used to detect the degree of early fatigue damage of the material.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85266344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on Non-hyperelastic Mechanical Model of EMU Rubber Spring Based on Experimental Data 基于实验数据的动车组橡胶弹簧非超弹性力学模型研究

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-11-03 DOI: 10.1177/03093247211055950

Chuanbo Xu, M. Chi, S. Liang, Liangcheng Dai, Yiping Jiang

{"title":"Research on Non-hyperelastic Mechanical Model of EMU Rubber Spring Based on Experimental Data","authors":"Chuanbo Xu, M. Chi, S. Liang, Liangcheng Dai, Yiping Jiang","doi":"10.1177/03093247211055950","DOIUrl":"https://doi.org/10.1177/03093247211055950","url":null,"abstract":"The dynamic mechanical properties of rubber spring have great influence on the vehicle dynamic performance, so the accurate description of the mechanical properties of rubber spring has always been the focus of the train dynamics. Among the mechanical properties of rubber springs, the study of non-hyperelastic properties are the most difficult and complex. Therefore, this paper mainly studies non-hyperelastic forces. Based on the experimental data of rubber springs, an elliptic analysis model is derived to describe the non-hyperelastic properties of rubber springs. On the basis of this model, a modified model based on time change and a modified model based on displacement change are also proposed. The results show that the ellipse analysis model is simple, but the error of calculation is large; the calculation precision of time correction model is high, but the calculation process is complex; the displacement correction model is between the previous two models, with both accuracy and convenience. Compared with other models, the displacement correction model has great advantages, which can improve the accuracy of the calculation of train dynamics. It is suggested to adopt the rubber spring displacement correction model in engineering application.","PeriodicalId":50038,"journal":{"name":"Journal of Strain Analysis for Engineering Design","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84400378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Dislocations in an arbitrary angle wedge. Part I: The dislocation kernel 任意角度楔的位错。第一部分:位错核

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-10-28 DOI: 10.1177/03093247211042539

Daniel J. Riddoch, D. Hills

引用次数: 2

Dislocations in an arbitrary angle wedge. Part II: Cracks in the wedge 任意角度楔的位错。第二部分:楔子上的裂缝

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-10-09 DOI: 10.1177/03093247211047785

Daniel J. Riddoch, N. Cwiekala, D. Hills

引用次数: 2

Evaluation of hetro-stacked target plate response toward different nose shaped projectile impact 不同机头型弹丸冲击下杂堆靶板响应的评价

IF 1.6 4区工程技术

Journal of Strain Analysis for Engineering Design Pub Date : 2021-09-27 DOI: 10.1177/03093247211047144

D. Iqbal, V. Tiwari

引用次数: 2