Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs最新文献_第2页

The Damping Characteristics of Machine Structures Assembled by Bonding: A Beam in Which Two Steel Strips Are Partially Joined by an Adhesive 粘接装配的机械结构的阻尼特性:用粘合剂部分连接两条钢带的梁

Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs Pub Date : 1998-11-15 DOI: 10.1115/imece1998-1120

Takashi Kobayashi, Y. Nakano

引用次数: 0

A Unified Approach to Mechanical Adhesion by Finite Element Analysis of Straight Sections 基于直截面有限元分析的机械黏附统一方法

Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs Pub Date : 1998-11-15 DOI: 10.1115/imece1998-1114

Erol Sancaktar

{"title":"A Unified Approach to Mechanical Adhesion by Finite Element Analysis of Straight Sections","authors":"Erol Sancaktar","doi":"10.1115/imece1998-1114","DOIUrl":"https://doi.org/10.1115/imece1998-1114","url":null,"abstract":"\u0000 The primary objective of this study was to optimize the geometry and volume of the substrate in lap, butt and scarf adhesive joints under various loading and boundary conditions by finite element analysis. The finite element models are validated by evaluating for convergence and by calculating theoretical values using strength of materials and applied elasticity. The results of this study are significant in optimizing mechanical adhesion because any real joint surface may contain a combination of the above model joints on a smaller scale. Studying the behavior of these basic models will help in optimizing topography of surfaces to be bonded. As a novel approach for design purposes new parameters involving stress times joint volume and stress divided by joint volume as well as stress gradients are considered. Finite element meshes of the basic lap, butt and four scarf joints (30°, 45°, 60°, 75°) having 25.4 mm adhesive length are completed. Upon validation of these models, they are subjected to various loading and boundary conditions and results obtained. Several models are created to evaluate the effect of the volume of substrate in the lap and butt joints. Considering the fact that large strain gradients result in failure, this study focuses not only on the magnitudes, but also on the gradients of stresses and strains in optimizing the joint strength. This study has concluded that there exist significant differences in the interfacial stresses with respect to the scarf angle, considering lap and butt to be special cases of scarf with 0° and 90° angles, as well as with respect to the adhesive material properties.","PeriodicalId":401404,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs","volume":"36 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133448665","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

Mechanical Behavior of Bolted Joints Under Thermal Changes 热变化条件下螺栓连接的力学行为

Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs Pub Date : 1998-11-15 DOI: 10.1115/imece1998-1125

T. Sawa, A. Muramatsu, H. Kumano

{"title":"Mechanical Behavior of Bolted Joints Under Thermal Changes","authors":"T. Sawa, A. Muramatsu, H. Kumano","doi":"10.1115/imece1998-1125","DOIUrl":"https://doi.org/10.1115/imece1998-1125","url":null,"abstract":"\u0000 Bolted joints in heat exchangers, cylinder head in combustion engines and so on are subjected to a heat flux. It is necessary to examine the mechanical behavior of such bolted joints under thermal changes in order to establish an optimal design. This paper deals with mechanical behavior of bolted joints, in which two hollow cylinders and two rectangular thick plates made of aluminum are fastened at room temperature by a bolt and nut made of steel, and are subjected to thermal changes or steady heat conduction. In the experiments, the bolted joints mentioned above were put in a furnace. Next, rectangular thick plates fastened by a bolt and nut were heated by an electric heater. Then, the temperatures on the surfaces of the clamped parts and the bolts were measured with thermocouples. The increase in axial bolt force, the maximum stress in the bolts and the strains in the clamped parts were measured under steady heat conduction or thermal changes. In addition, analyses we are carried out on the above load factors using the finite difference method. The analytical results are consistent with the experimental ones.","PeriodicalId":401404,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126511050","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

Non-Linear Finite Element Analysis Support Testing for Gaskets and Seals 垫片和密封件的非线性有限元分析支持试验

Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs Pub Date : 1998-11-15 DOI: 10.1115/imece1998-1112

Abraham Pannikottu, Joseph A. Seiler, J. Leyden

{"title":"Non-Linear Finite Element Analysis Support Testing for Gaskets and Seals","authors":"Abraham Pannikottu, Joseph A. Seiler, J. Leyden","doi":"10.1115/imece1998-1112","DOIUrl":"https://doi.org/10.1115/imece1998-1112","url":null,"abstract":"\u0000 Computer-Aided Engineering (CAE) refers to the use of computers to perform design calculations for determining an optimum shape and size for a variety of engineering applications. This modern concept of engineering management has led to important advances in the design and production of components used in aerospace, automotive, electronics and other industries throughout the world.\u0000 Computer-Aided Engineering enables an engineer to test design ideas by simulating the function of the part on the computer. Finite Element Analysis (FEA) is one of these computer simulation techniques which is most accurate, versatile and comprehensive technique for solving complex design problems. FEA permits the analysis of these complex structures without the necessity of developing and applying complex equations.\u0000 FEA program for non-linear stress analysis of elastomers is performed by applying two material models:\u0000 * Mooney-Rivlin Model\u0000 * Ogden Model\u0000 The Mooney-Rivlin model is the most widely used model for elastomer analysis. The basic problem facing the design engineer is how to obtain the material coefficients needed to use these two models in FEA. As expected, the effectiveness of design analysis is directly related to the quality of the material input material coefficients.\u0000 Akron Rubber Development Laboratory, Inc. (ARDL) has developed a reliable history of standard procedures for determination of these coefficients from experimental test data. This paper will discuss various testing techniques used for developing elastomer material constants. Also, the intent of this paper is to show how aging or service conditions can be incorporated to obtain material coefficients for elastomer parts.","PeriodicalId":401404,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Aspects of Adhesive and Bolted Joints, Rubber Components, Composite Springs","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121543285","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: 1