Analysis and Design Issues for Modern Aerospace Vehicles最新文献_第2页

The Role of Threshold Fatigue Crack Growth in Life Prediction of the Alloy Ti-6Al-2Sn-4Zr-6Mo Under High Cycle Fatigue Spectra 高周疲劳谱下阈值疲劳裂纹扩展在Ti-6Al-2Sn-4Zr-6Mo合金寿命预测中的作用

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0744

J. M. Larsen, S. Russ, D. C. Maxwell, B. D. Worth

引用次数: 0

Static Indentation and Low Velocity Impact Tests on Sandwich Plates 夹芯板的静态压痕和低速冲击试验

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0749

Rocco Ferri, B. Sankar

引用次数: 12

On the Optimization of Composite Cylindrical Sandwich Shells Subjected to Beam Type Bending 梁式弯曲复合材料圆柱夹层壳的优化研究

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0738

J. Vinson

引用次数: 0

Design Criteria for Sandwich Panels for Building Construction 建筑夹层板设计标准

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0729

J. M. Davies

引用次数: 2

The Application of Sandwich Components in Hybrid Structures 夹层构件在混合动力结构中的应用

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0732

A. Starlinger

{"title":"The Application of Sandwich Components in Hybrid Structures","authors":"A. Starlinger","doi":"10.1115/imece1997-0732","DOIUrl":"https://doi.org/10.1115/imece1997-0732","url":null,"abstract":"\u0000 A hybrid design concept for body shells has been developed in order to achieve light and stiff structures for state of the art railway and bus vehicles. It uses longitudinal hollow aluminum extrusions combined with foam core sandwich panels of aluminum face layers. In addition to the reduction of mass, hybrid design helps to save production costs. These savings are based on the simplified assembling technique in a modular concept (via corner bolt systems, viscoelastic adhesives, riveting and laser welding), the integration of insulation (by the foam core), and the outstanding impact behavior. The direct joining of the sandwich composite elements to the aluminum extrusions is, however, one of the most challenging steps when designing a hybrid structure. For this reason the hybrid design concept requires a more sophisticated structural analysis approach. In the case of the composite components reduced shear stiffness of the core and local failure mechanisms have to be taken into account. In order to meet all the structural criteria detailed finite element models and analyses have been derived.\u0000 Several examples of railway structures built in the hybrid design are given to show the development steps and the advantages of this new design concept.","PeriodicalId":403237,"journal":{"name":"Analysis and Design Issues for Modern Aerospace Vehicles","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126730586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aerodynamic Response of Turbomachinery Blade Rows to Convecting Density Wakes 涡轮机械叶片排对密度尾迹的气动响应

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/1.1311287

H. S. Wijesinghe, C. Tan, E. Covert

引用次数: 4

Size Effects in Tensile, Compressive and Interlaminar Failure of Unidirectional Composites 单向复合材料拉伸、压缩和层间破坏中的尺寸效应

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0710

M. Wisnom

引用次数: 4

Bending of Curved Sandwich Panels With Transversely Flexible Cores: Closed-Form High-Order Theory 具有横向柔性芯的弯曲夹层板的弯曲:闭型高阶理论

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0734

Y. Frostig

{"title":"Bending of Curved Sandwich Panels With Transversely Flexible Cores: Closed-Form High-Order Theory","authors":"Y. Frostig","doi":"10.1115/imece1997-0734","DOIUrl":"https://doi.org/10.1115/imece1997-0734","url":null,"abstract":"\u0000 The bending behavior of a curved sandwich panel with a transversely flexible core, i.e. “soft” in the out of plane direction, is derived. It is formulated using a rigorous systematic closed-form approach based on variational principles. The effects of the transversely flexible core are incorporated resulting in non-linear patterns, denoted also as high-order effects, for the inplane and the transverse deformations through the height of the core. The governing equations along with the associated boundary and continuity conditions for a general type of sandwich panels, i.e. unidentical skins, composite laminated or metallic and a “soft” core are derived. General type of boundary conditions, including spring conditions, as well as different conditions at the upper and the lower skins at the same section are implemented and the effects of “stiff edge inserts, denoted as global boundary conditions, along with the induced localized effects are considered. Localized effects at support regions with or without edge stiffeners, with movable and immovable supports, and in the vicinity of concentrated loads are studied. The effects are described in terms of the internal resultants and displacements of each skin, peeling (transversely normal) stresses and shear stresses at the skin-core interfaces, and stress and displacement fields in the core through its height. Numerical results of a typical curved panel used in a test set-up and comparisons with experimental data are presented. A comparison, that is in very good agreement, between the analytical results and the experimental ones is conducted. The effects of a global boundary conditions, such as a “stiff” edge beam, and similar local boundary conditions on the localized effects are presented and discussed. The stress concentration involved in case of a concentrated load especially in its near vicinity is described.","PeriodicalId":403237,"journal":{"name":"Analysis and Design Issues for Modern Aerospace Vehicles","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125494271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Consideration on the Benefits of Intentional Blade Mistuning for the Forced Response of Turbomachinery Rotors 叶片故意失谐对涡轮机械转子强迫响应的影响

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0741

M. Castanier, C. Pierre

引用次数: 33

Thermal Shape Control of Active and Sensory Piezoelectric Composite Plates 主动和感应压电复合材料板的热形状控制

Analysis and Design Issues for Modern Aerospace Vehicles Pub Date : 1997-11-16 DOI: 10.1115/imece1997-0726

H. Lee, D. Saravanos

引用次数: 3