STRUCTURAL RELIABILITY OPTIMIZATION DESIGN OF REINFORCED SHELL MODEL BASED ON ADAPTIVE SURROGATE MODEL by LIU YuZhuo, CAO LiXiong, WU JianGuo, LI HaiBo

“…Reinforced shell structure is widely used in aerospace load-bearing structures because its high specific stiffness and specific strength.By considering the uncertainty and risk factors in the structural parameters，the Reliability-Based Design Optimization （RBDO） can avoid the overly conservative design of the structure and ensure its reliability and safety.An efficient RBDO method based on adaptive agent model was proposed.This method solves the problem of lightweight design of reinforced shell structure under buckling reliability constraints.The adaptive addition of sample points was implemented through the expected feasibility function criterion，and the discrete variables was continued by constructing piecewise functions.This increases optimization efficiency while ensuring the reliability of design results.Finally，the effectiveness of the proposed method is verified by comparing the RBDO results with the deterministic optimization results.…”
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Study on the Vector Quadrilateral Isoparametric Shell Element with Shear Deformation by Zhen Wang, Yang Zhao, Zhi Ding, Huiping Tang

“…Numerical example results show that the static and dynamic analysis, large deformation and large rotation analysis, and buckling analysis can all be well performed for the shell structures by the developed program, which verifies the validity of theoretical derivation and computer program.…”
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Modeling of mechanical behavior of cork in compression by Youns Saadallah

“…Cork shows stress-strain curves, typical of cellular materials, characterized by an elastic slope followed by an important plateau corresponding to buckling of cells; and finally hardening due to the densification of the material. …”
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Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation by Zhenfeng Guo, Ze Zhu, Xiaoqian Zhang, Ying Peng, Ziting Huang, Xinqiang Wang, Luyi Zhu, Yongshuai Xie, Guanghui Zhang, Benxue Liu, Dong Xu

“…The prepared TS-1100 NFMs had excellent buckling fatigue resistance, which could undergo 100 buckling-recovery cycles at up to 80% strain. …”
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Vibration and Acoustic Response of Rectangular Sandwich Plate under Thermal Environment by Yuan Liu, Yueming Li

“…In this paper, we focus on the vibration and acoustic response of a rectangular sandwich plate which is subjected to a concentrated harmonic force under thermal environment. The critical buckling temperature is obtained to decide the thermal load. …”
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A Gradient Stable Node-Based Smoothed Discrete Shear Gap Method for Analysis of Reissner–Mindlin Plates by Yadong Xu, Guangsong Chen, Jinsong Tang

“…In this paper, a gradient stable node-based smoothed discrete shear gap method (GS-DSG) using 3-node triangular elements is presented for Reissner–Mindlin plates in elastic-static, free vibration, and buckling analyses fields. By applying the smoothed Galerkin weak form, the discretized system equations are obtained. …”
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Long-Term Follow-Up of the Postoperative Macular Fold following the Vitreoretinal Surgery with Air Tamponade by Ali Osman Saatci, Ozlem Barut Selver, Melih Parlak

“…A 64-year-old male who had a macula-on superior bullous retinal detachment in OD underwent scleral buckling, 20-gauge-pars plana vitrectomy, internal drainage of subretinal fluid with perfluorocarbon fluid, 360° endolaser and perflourocarbon-fluid-air exchange surgery. …”
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RESEARCH ON AXIAL LOAD CARRYING CAPACITY OF A NEW TYPE OF SUPERCELL HONEYCOMB STRUCTURE by HE Bin, LI Xiang

“…By helps of finite element numerical simulation,the method of eigenvalue buckling analysis was used to realize the process of structural stability analysis of the supercell honeycomb,and the analysis result was also compared with those of rhombus,regular hexagon and regular octagon honeycomb structure.Meanwhile,a type of chassis deck of electrical motorcycle was taken as an example to testify the overall strength and stiffness of the new type of honeycomb sandwich structure’s core under axial load and analyze the influence on strength and stiffness of the core with different wall thickness of its cell. …”
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Algorithm Development and Design of Lattice Conical Shell Under Mechanical and Thermal Loads by Behrooz Shahriari, Mahdi Sharifi, Hassan Izanlo

“…It is concluded that the stiffeners can resist buckling and mechanical failure under mechanical and thermal loading conditions, while the mass is significantly reduced. …”
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An Investigation on the Nonlinear Free Vibration Analysis of Beams with Simply Supported Boundary Conditions Using Four Engineering Theories by R. A. Jafari-Talookolaei, M. H. Kargarnovin, M. T. Ahmadian, M. Abedi

“…Expressions for the natural frequencies, the transverse deflection, postbuckling load-deflection relation to, and critical buckling load are presented. The results of nonlinear analysis are validated with the published results, and excellent agreement is observed. …”
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Quasi-static compressive behavior and stability analysis of cellular thin-walled beams by TIAN XinYu, DENG QingTian, LI XinBo, WANG GuoSheng, SONG XueLi

“…The results show that the larger the distance from the hole to the flange, the better the stability of the structure. The buckling position of thin-walled I-beams with honeycombs with good stability appears between the two holes, and the concave structure has better stability than the honeycomb and elliptical structure.…”
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Computational Modelling Strategies for Nonlinear Response Prediction of Corroded Circular RC Bridge Piers by Mohammad M. Kashani, Laura N. Lowes, Adam J. Crewe, Nicholas A. Alexander

“…This model accounts for the impact of corrosion on buckling strength, postbuckling behaviour, and low-cycle fatigue degradation of vertical reinforcement under cyclic loading. …”
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MULTI-OBJECTIVE OPTIMIZATION OF MATERIAL DISTRIBUTION FOR FUNCTIONALLY GRADE PLATES WITH CUTOUTS BASED ON XIGA by WANG Chao, LIU Tao, GU JiMing, XIE NengGang

“…In the optimization process,the control points describing material distribution are taken as design variables to establish multi-objective optimization problems with the largest first natural frequency,the smallest plate mass and the largest buckling critical parameters. The NSGA-II algorithm is selected as the optimization algorithm. …”
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Asymmetric-bifurcation snapping, all-or-none motion of Venus flytrap by Xiangli Zeng, Yingzhe Wang, Keisuke Morishima

“…Moreover, a mathematical asymmetric-bifurcation buckling model was developed. The Venus flytrap has asymmetric energy states for the closing and opening conditions; therefore, storage of a larger amount of energy makes the re-opening motion slower. …”
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RESEARCHES ON COMPRESSIVE MECHANICAL BEHAVIORS OF ADHESIVE BONDED THIN-WALLED HOLLOW SPHERES STRUCTURE by DAI MeiLing, YANG FuJun, HE XiaoYuan, DAI XiangJun

“…The results reveal that:（ 1） the deformation process of the structure includes four stages: elastic deformation,axisymmetric buckling,forming non-axisymmetric polygon and transforming to axisymmetric mode;（ 2） the elastic modulus and yield stress basically increase with the hollow sphere wall thickness,linking neck radius and center thickness as well as the Young’s modulus and yield stress of spheres material;（ 3） the strain of structural self-contact behavior increases with the linking neck center thickness and radius.…”
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EFFECT OF PLY ORIENTATION ON ENERGY-ABSORBING CHARACTERISTICS OF COMPOSITE C-CHANNELS SUBJECT TO AXIAL COMPRESSION by FENG ZhenYu, ZHOU Kun, SONG ShanShan, ZHANG XueHan, MOU HaoLei

“…The results show that the stable progressive crushing processes are observed during experiments, and various macroscopic failure modes are also presented, such as interlayer cracking, bending fracture, local buckling and shear failure. The [0/90]_{3 s} specimens absorb the largest energy, the [45/90/-45/0]₃ specimens absorb the middle energy, while the [45/-45]_{3 s} specimens absorb the smallest energy. …”
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Mechanism Study on the Axial Compressive Performance of Short Square CFST Columns with Different Stiffeners by Bing Xu, Fahong Wu, Guizhong Xu

“…The axial compression performance and mechanism are studied through experiments, which indicate that (1) the buckling model of stiffening members changes into double wave, (2) stiffeners enforce the constraint in core concrete, (3) stiffeners can effectively improve the ultimate bearing capacity, (4) the stiffeners increase the stress in the middle of the steel tube and improve the distribution of stress for the core concrete, and (5) the direct ribs have more influence on the bearing capacity while ribs with holes have more impact on the deformation of the tube. …”
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A New Simple Method for the Strength of High-Strength Steel Thin-Walled Box Columns Subjected to Axial Force and Biaxial End Moments by Hong-Xia Shen

“…It shows that the proposed formulas can precisely evaluate the local-overall interactive buckling strength of HSS beam-columns and, in most cases, are also suitable for beam-columns fabricated from mild steels. …”
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Thermal-structural Coupling Analysis of Friction Pair of Hydro Viscous Speed Regulating Clutch by Wang Yun, Chen Zhe, Chen Liyu, Cui Jiasen, Yang Xiaming

“…The internal and external diameters of the friction pairs occur positive and negative displacements along the z axis,and disc buckling occurs. It is found that only 30 Cr Mn Si A doesn’t undergo plastic deformation in case of the outer diameter having constraint. …”
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CO- and H2S-adsorbed one-dimensional AlSi structures for gas sensing applications by Hoang Van Ngoc

“…Results indicate that the structures remain relatively planar with negligible buckling heights. All three studied structures exhibit non-zero magnetic moments; notably, CO adsorption enhances the magnetic moment of the pristine AlSi nanoribbon, whereas H2S adsorption reduces it. …”
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