Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections最新文献

The Strength of Joints Combining Adhesives With Bolts (Case Where Adherends Are Pipe Flanges of Which the Interfaces Are Bonded Partially) 胶粘剂与螺栓结合接头强度(附着物为部分粘接的管道法兰情况)

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1188

M. Yoneno, T. Sawa, T. Ishihara, H. Kawamura

{"title":"The Strength of Joints Combining Adhesives With Bolts (Case Where Adherends Are Pipe Flanges of Which the Interfaces Are Bonded Partially)","authors":"M. Yoneno, T. Sawa, T. Ishihara, H. Kawamura","doi":"10.1115/imece1999-1188","DOIUrl":"https://doi.org/10.1115/imece1999-1188","url":null,"abstract":"\u0000 The stresses of joints combining the bonding force of adhesives with the clamping force of bolts is analyzed using axisymmetrical theory of elasticity and FEM, when an internal pressure is applied to the combination joint in which two pipe flanges are clamped together by bolts and nuts with an initial clamping force after being joined by anaerobic sealant. The anaerobic sealant is applied at the interfaces partially instead of formed gaskets in pipe flange connections. In the numerical calculations, the effect of the bonding area and position and Young’s modulus of sealant (epoxy adhesive) on the contact stress at the interfaces are clarified. In addition, using the interface stress distribution, the strength of the combination joint is predicted. Experiments are performed and the analytical results are consistent with the experimental results concerning the variation in axial bolt force and the strength of combination joints. It is found that the joint strength changes as the bolt pitch circle diameter, the bonding position and the area, the initial clamping force and the adhesive material properties change. Furthermore, it is seen that the sealing performance of such combination joints in which the interfaces are bonded partially is improved over that of pipe flange connection with metallic gaskets.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"36 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":"129270662","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 Finite Element Stress Response Analysis of Laminated Cantilever Beams With Adhesive Layers Subjected to Impact Loadings 冲击载荷作用下带粘结层叠置悬臂梁的三维有限元应力响应分析

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1181

J. Shimura, I. Higuchi, T. Sawa

{"title":"Three-Dimensional Finite Element Stress Response Analysis of Laminated Cantilever Beams With Adhesive Layers Subjected to Impact Loadings","authors":"J. Shimura, I. Higuchi, T. Sawa","doi":"10.1115/imece1999-1181","DOIUrl":"https://doi.org/10.1115/imece1999-1181","url":null,"abstract":"\u0000 The stress behavior in adhesive laminated cantilever beams subjected to impact loadings is analyzed using three-dimensional finite-element method (FEM) in the elastic region. The stress wave propagation and the stress distribution at the interfaces are examined. The effects of Young’s modulus of adherends, adhesive, the adherend thickness and the number of layers on the stress wave propagation at the interfaces are clarified. The following results are obtained. The maximum principal stress (σ1) is maximal at the adhesive interfaces. It is found that the maximum principal stress (σ1) at the adhesive interface increases as the Young’s modulus of the upper adherends increases. The maximum principal stress (σ1) at the adhesive interface increases as Young’s modulus of the adhesive increases. The maximum principal stress (σ1) at the adhesive interface decreases as the thickness of the adherend to which an impact load is applied increases. It is seen that the maximum principal stress (σ1) increases as number of layers increases. Experiments were carried out to measure the strain response of adhesive laminated cantilever beam using strain gauges. A fairly good agreement is seen between the analytical and experimental results.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"45 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":"121380827","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

Stress Analysis and Strength Evaluation of Single-Lap Adhesive Joints Combining Rivets Subjected to External Bending Moments 外弯矩作用下单搭接结合铆钉的应力分析及强度评价

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1186

J. Liu, T. Sawa

{"title":"Stress Analysis and Strength Evaluation of Single-Lap Adhesive Joints Combining Rivets Subjected to External Bending Moments","authors":"J. Liu, T. Sawa","doi":"10.1115/imece1999-1186","DOIUrl":"https://doi.org/10.1115/imece1999-1186","url":null,"abstract":"\u0000 Stress analysis and strength evaluation of single-lap adhesive joints combining rivets subjected to external bending moments are conducted by three-dimensional finite element analysis (FEA). In this analysis, the effects of the ratio of Young’s moduli of the rivets to that of the adherends, the initial tightening force produced in the rivets, the adhesive layers between the rivet heads and the adherends, and the positions of the rivets on the stress distributions at the interfaces between the adherends and the adhesives are examined. The rupture process of the single-lap adhesive joint combining rivets is demonstrated. The strength of single-lap adhesive joints combining rivets is evaluated by the maximum principal strain criterion using the maximum principal strain at the adhesive interfaces. The FEA results show that the failure of single-lap adhesive joints and single-lap adhesive joints combining rivets with thinner adherends are due to large elasto-plastic deformation of the adherends. For single-lap adhesive joints of thick adherends, the rupture is initiated from the edge of the adhesive interface. Experiments to measure the strength of single-lap adhesive joints, single-lap riveted joint and single-lap adhesive joints combining rivets were carried out. The failure types of single-lap adhesive joints and single-lap adhesive joints combining rivets obtained from the experiments coincide with the FEA results. The experimental results also show that the failure of single-lap riveted joints with thinner adherends is due to large plastic deformation of the adherends. However, for single-lap riveted joints with thick adherends it is shown that their failure is caused by the rupture of the rivets. Finally, it is found that fitted rivets in single-lap adhesive joints of thick adherends can enhance the joint strength.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"21 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":"127107424","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

Two Dimensional Transient Thermal Stress Analysis of Adhesive Butt Joints 粘接对接的二维瞬态热应力分析

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1190

Y. Nakano, Hiroki Kondo

引用次数: 0

Estimation of Yield Clamping Force Based on Rigid-Plastic Model 基于刚塑性模型的屈服夹紧力估算

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1195

H. Tsuji

{"title":"Estimation of Yield Clamping Force Based on Rigid-Plastic Model","authors":"H. Tsuji","doi":"10.1115/imece1999-1195","DOIUrl":"https://doi.org/10.1115/imece1999-1195","url":null,"abstract":"\u0000 Yield clamping force of a bolt in plastic region tightening depends on yield point load of the bolt under combined loads of axial tension and thread torque induced by the tightening process. A new estimation method using interaction curve for yield is proposed, which is applied to the yield clamping force and maximum additional tension under external force. This estimation method utilizes the general yield criterion based on the rigid-plastic solution for combined loads of tension and torsion. The yield of the bolt is expressed by the point of the intersection between the interaction curve and loading path of the bolt in tightening or external loading. Considering the coefficient of friction at the flank of the thread and the residual thread torque after tightening, yield clamping force and maximum additional tension are obtained respectively by the simple formulas. The yield clamping force and the maximum additional tension of the bolt are examined experimentally by a combined load testing machine which can apply combined tensile and torsional loads on the threaded portion of the bolt. Estimated values by the proposed method shows good agreement with the experimental results. The proposed estimation method is superior to the conventional one which takes into account only the local yield criterion. Finally, the target zones of initial clamping force controlled by elastic region tightening, yield point tightening and plastic region tightening are examined. Usefulness of the yield clamping force is demonstrated based on the rigid-plastic model.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"69 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":"132562398","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

Influence of Rates and Duration of Stress Waves on Residual Strength of Adhesively Bonded Joints After Single Impact or Repeated Impacts 单次或多次冲击后应力波速率和持续时间对粘接接头残余强度的影响

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1192

C. Sato, K. Ikegami

{"title":"Influence of Rates and Duration of Stress Waves on Residual Strength of Adhesively Bonded Joints After Single Impact or Repeated Impacts","authors":"C. Sato, K. Ikegami","doi":"10.1115/imece1999-1192","DOIUrl":"https://doi.org/10.1115/imece1999-1192","url":null,"abstract":"\u0000 Residual strength after Impact (RSAI) of adhesively bonded joints was investigated experimentally. Impact Loads were applied to the joints using a split Hopkinson bar equipment. Residual strength of the joints was measured by static tests after a single impact or repeated impacts. Tubular specimens, which included tubular butt joints, were used for the experiments. Since the shape of the specimens was similar to hats, they were called ‘hat specimens’. Materials for the specimens were carbon steel adherends and an epoxy resin adhesive.\u0000 The hat specimens were subjected to impact loads by the split Hopkinson bar equipment that consisted of an input bar, an output tube and an air gun. The collision of strikers, which were accelerated by the air gun, to the end of the input bar caused compressive stress waves in the input bar. The compressive stress waves were changed to tensile stress waves in the hat specimen, and consequently high rate tensile loads could be applied to the joints.\u0000 The impact tests were conducted with several conditions of maximum stress, duration and rate of impact loading. The maximum stress and the duration of the stress waves depended on the velocity and the length of the strikes, which could be selected. Stress rates were chosen by using buffers, which were inserted between the strikes and the input bar.\u0000 Residual strengths of the joints after impact tests were smaller than the strength without impacts. However, the decrease of the strength was relatively small. The influence of the repeated impacts was remarkable on the decreases of the joint strength although the influence of the maximum stress, the duration and the rate of the impact loading were very small.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"23 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":"131225756","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

Stress Analysis of Stainless Steel Elbow and Tee Fittings Subjected to Internal Pressure and External Loads 不锈钢弯头和三通管件在内外载荷作用下的应力分析

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1193

T. Sawa, Tetsuya Furuya, T. Murakami, Yasuyuki Kagaya

{"title":"Stress Analysis of Stainless Steel Elbow and Tee Fittings Subjected to Internal Pressure and External Loads","authors":"T. Sawa, Tetsuya Furuya, T. Murakami, Yasuyuki Kagaya","doi":"10.1115/imece1999-1193","DOIUrl":"https://doi.org/10.1115/imece1999-1193","url":null,"abstract":"\u0000 In this paper, mechanical behaviors of the Elbow and Tee fittings connected to pipes by screw threads under internal pressure, external tensile loads and bending moment are analyzed using the Finite Element Method (FEM). FEM code employed is MARC. The maximum Mises stress of the Elbow and Tee fittings are obtained when the wall thickness is changed while the internal working maximum pressure is held constant at 20bar. The elasto-plastic stress states of screw threads the fittings and the pipes are obtained under internal pressure and external loads. Under the assumptions that nodal points are released when the strain of the elements reaches the rupture strain of the fitting’s material, the load when the rupture occurs at the screw thread is analyzed. The safety factor for the wall thickness of the Elbow and Tee fittings used in the experiment is found to be about 5. The results indicate deduced that the dimensions of Elbow and Tee fittings can be reduced. The strength of the fittings under internal pressure and external loads is obtained. It is found that the stress concentrates at the first root of male thread and expected that a fracture initiates at the first root. The strain of the Elbow and Tee fittings subjected to internal pressure were measured by using strain gauges. The numerical results are in a fairly good agreement with the experimental results.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"74 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":"117253828","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

Elasto-Plastic Finite Element Analysis of Metal-Matrix Composite Plates With Hole Under Plane Loading 平面载荷下带孔金属基复合材料板的弹塑性有限元分析

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1182

Erol Sancaktar

引用次数: 1

Effect of the Material Types on the Fundamental Frequencies of Uniaxial Composite Conical Springs 材料类型对单轴复合锥形弹簧基频的影响

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1185

Erol Sancaktar

引用次数: 1

Stress Analysis of Bolted Joints of Flat Cover With Tap Bolts in a Pressure Vessel 压力容器平盖带分锥螺栓螺栓连接的应力分析

Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections Pub Date : 1999-11-14 DOI: 10.1115/imece1999-1196

T. Sawa, Akihiro Karasawa, Akihiro Shimizu

{"title":"Stress Analysis of Bolted Joints of Flat Cover With Tap Bolts in a Pressure Vessel","authors":"T. Sawa, Akihiro Karasawa, Akihiro Shimizu","doi":"10.1115/imece1999-1196","DOIUrl":"https://doi.org/10.1115/imece1999-1196","url":null,"abstract":"\u0000 Bolted joints with gaskets have been designed empirically, and the sealing performance is not made clear by theoretical analyses because the contact stress distribution between the gasket and the flanges are not clarified when an internal pressure is applied to the joint. The present paper, discusses the distribution of contact stresses in the bolted joints fastened with tap bolts, when a clamped part with a gasket is the cover of a pressure vessel and is a circular flange. The distribution of contact stresses is analyzed as a three-body contact problem, using the three-dimensional theory of elasticity. Moreover, the contact stress is measured by means of ultrasonic waves. In addition, the load factor (the ratio of an increment of the axial bolt force to an external load) and the maximum stress caused in bolts are analyzed taking into account the bending moment. For verification, experiments are carried out, and the analytical results are found in fairly good agreement with the experimental ones. It was found that the sealing performance was improved when Young’s modulus of the gaskets was decreased and the gasket thickness was increased.","PeriodicalId":136131,"journal":{"name":"Reliability, Stress Analysis, and Failure Prevention Issues in Adhesive and Bolted Connections","volume":"28 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":"133766150","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