Recent Advances in Solids and Structures最新文献_第5页

Higher Order Singularities and Their Energetics in Elastic-Plastic Fracture 弹塑性断裂中的高阶奇点及其能量学

Recent Advances in Solids and Structures Pub Date : 2000-11-05 DOI: 10.1115/imece2000-1252

In Jun, Yongwoo Lee, S. Im

引用次数: 0

Stress Intensity Factors for Cracks Within and Near to Bondlines in Soft Incompressible Materials 软质不可压缩材料粘结线内及粘结线附近裂纹的应力强度因子

Recent Advances in Solids and Structures Pub Date : 2000-06-16 DOI: 10.21236/ada410444

C. Smith, K. Gloss, D. Constantinescu, C. Liu

引用次数: 1

The Contour Method: Simple 2-D Mapping of Residual Stresses 轮廓法:残余应力的简单二维映射

Recent Advances in Solids and Structures Pub Date : 2000-06-01 DOI: 10.1115/imece2000-1262

M. Prime, A. Gonzales

引用次数: 57

Elasto-Plastic Analysis of Thermal Stress Development During VAR of Ingots 钢锭VAR过程中热应力发展的弹塑性分析

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0631

M. K. Alam, K. Wong, S. Semiatin

引用次数: 0

Modeling of Crack Growth in Thin Sheet Aluminum 铝薄板裂纹扩展模型研究

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0612

T. Siegmund, W. Brocks, J. Heerens, G. Tempus, W. Zink

引用次数: 3

Fatigue Behavior of Notched Resin Infusion Molded S2-Glass Twill Woven Composites 缺口树脂注射成型s2 -玻璃斜纹复合材料的疲劳性能

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0628

A. Kelkar, P. Chaphalkar

引用次数: 0

Comparison of Two Axisymmetric Finite Element Models of Threaded Connections 两种轴对称螺纹连接有限元模型的比较

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0623

M. Hommel

{"title":"Comparison of Two Axisymmetric Finite Element Models of Threaded Connections","authors":"M. Hommel","doi":"10.1115/imece1999-0623","DOIUrl":"https://doi.org/10.1115/imece1999-0623","url":null,"abstract":"\u0000 Predicting the fatigue life of threaded connections using finite element analysis generally requires a 2-D axisymmetric model capable of handling non-axisymmetric loading in order to simulate an applied bending moment. This is desirable from the standpoint of computer run time, as compared with the alternative approach, namely, developing a full 3-D model. Unfortunately, due to their esoteric nature, the 2-D axisymmetric elements with non-axisymmetric loading capability are not supported by the software vendors as well as the other elements, hence pre- and post-processing are more challenging. In addition, due to the Fourier representation of the non-axisymmetric load, computer run time and storage is increased significantly over that of a strictly 2-D axisymmetric model. In view of this, common practice has been to use instead the conventional axisymmetric model with an equivalent applied axial tensile stress equal to the mean bending stress through the wall thickness in order to simulate the bending moment and thereby avoid the necessity for non-axisymmetric loading. The question therefore arises as to how well the results from the strictly axisymmetric model agree with the results from the axisymmetric model with non-axisymmetric loading capability.\u0000 The purpose of this paper is to compare the results of the two models. A 5-1/2 F.H. threaded connection is modeled by means of a commercial finite element code. First, the axisymmetric model with non-axisymmetric loading capability is treated and results are obtained. Second, the axisymmetric model with applied equivalent tensile load is examined and its results are compared with the former model. It is found that the value of the primary variable of interest for quantification of fatigue life, namely, alternating stress, agrees between the two models within 4%. Thus, it is concluded that the simplified model provides a viable alternative for modeling fatigue life of threaded connections.","PeriodicalId":270413,"journal":{"name":"Recent Advances in Solids and Structures","volume":"65 19","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131471271","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

Three-Dimensional Analyses of Single Rivet-Row Lap Joints — Part I: Elastic Response 单铆钉排搭接的三维分析。第1部分:弹性响应

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0613

K. Iyer, C. Rubin, G. Hahn

{"title":"Three-Dimensional Analyses of Single Rivet-Row Lap Joints — Part I: Elastic Response","authors":"K. Iyer, C. Rubin, G. Hahn","doi":"10.1115/imece1999-0613","DOIUrl":"https://doi.org/10.1115/imece1999-0613","url":null,"abstract":"\u0000 Three-dimensional finite element analyses (FEA) of an elastic, single rivet-row, aluminum alloy lap joint are presented. The effects of rivet geometry (countersinking), rivet material and interfacial friction coefficient are examined. Interference and lateral clamping are not treated. Panels loaded in tension with vacant, tapered holes are also examined. Load transfer through the joint, the joint compliance, rivet-tilt, the local slips at rivet-panel and panel-panel interfaces, contact pressures and local stresses are evaluated. Relations between these features and the contact and bending driven stress concentration are clarified. The work shows that the stress concentration factor, rivet-panel slips, peak stresses, contact pressures and rivet deformation are all related, and increase with the severity of the countersink. Panel bending, rivet tilt and countersinking introduce large, out-of-plane stress gradients and shift the peak stresses to the interior surface of the countersunk panel. The results demonstrate the importance of out-of-plane distortions in accounting for the behavior of the riveted lap joints. Three opportunities are identified for improving lap joint performance without increasing the weight.","PeriodicalId":270413,"journal":{"name":"Recent Advances in Solids and Structures","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132630150","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: 4

An Accurate Explicit Direct Time Integration Method for Computational Structural Dynamics 计算结构动力学的精确显式直接时间积分方法

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0617

B. Tchamwa, T. Conway, C. Wielgosz

引用次数: 24

On Environmental Vibration Power Spectra and Accelerated Testing for Medical Devices 医疗器械环境振动功率谱及加速试验研究

Recent Advances in Solids and Structures Pub Date : 1999-11-14 DOI: 10.1115/imece1999-0619

Jingshu Wu, Ruichong Zhang, K. Stevens

{"title":"On Environmental Vibration Power Spectra and Accelerated Testing for Medical Devices","authors":"Jingshu Wu, Ruichong Zhang, K. Stevens","doi":"10.1115/imece1999-0619","DOIUrl":"https://doi.org/10.1115/imece1999-0619","url":null,"abstract":"\u0000 This paper proposes field-testing-based power spectra of vibration in such environments as helicopters and ground vehicles. The spectra could then be used as important input data to guide accelerated testing, quality analysis and design for medical devices (or products) used in the aforementioned transportation means. Specifically, a broad spectrum of environmental vibration is first measured in a series of field vibration tests at various locations inside the transportation means and at different operational conditions (e.g., take-off, cruise, and landing conditions if medical devices are used in helicopters). Consequently, comprehensive field-testing-based power spectra are constructed, in an attempt to catch the inherent nature of random vibration environment in each and every type of the transportation means, which is not adequately specified in standard codes. As one of the applications of the proposed spectra, accelerated random vibration testing for medical devices used in either helicopters or ground vehicles is proposed, which could be used not only for product field life prediction but also for its consequent reliability analysis and design.","PeriodicalId":270413,"journal":{"name":"Recent Advances in Solids and Structures","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131773335","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