Strength of Materials最新文献_第8页

Performance Study on a High-Strength Extruded Magnesium Alloy Van Frame Using FEA 利用有限元分析对高强度挤压镁合金厢式车架进行性能研究

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2024-02-28 DOI: 10.1007/s11223-024-00619-7

引用次数: 0

Analysis and Discussion on the Room Temperature Microstructure and Properties of High Content Mixed Rare-Earth As-Cast AZ61 Magnesium Alloy 高含量稀土混合铸造 AZ61 镁合金室温显微组织和性能分析与讨论

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2024-02-28 DOI: 10.1007/s11223-024-00612-0

F. H. Cao, Y. Zhang, Y. Chen, M. G. Jiang, J. L. Zhou, Y. He

{"title":"Analysis and Discussion on the Room Temperature Microstructure and Properties of High Content Mixed Rare-Earth As-Cast AZ61 Magnesium Alloy","authors":"F. H. Cao, Y. Zhang, Y. Chen, M. G. Jiang, J. L. Zhou, Y. He","doi":"10.1007/s11223-024-00612-0","DOIUrl":"https://doi.org/10.1007/s11223-024-00612-0","url":null,"abstract":"This paper systematically analyzed and discussed the microstructure and mechanical properties of as-cast AZ61 magnesium alloy with rare-earth content of 1.0~4.0 wt.% by optical microscopy, SEM, EDS, and XRD. The results indicate that in addition to the obvious distribution of skeletal β-Mg17Al12 phase, a small amount of Mg32(Al, Zn)49 quasicrystal phase is distributed in as-cast AZ61 alloy. With the addition of rare-earth content, the skeletal β-Mg17Al12 phase dendrites in the as-cast AZ61 magnesium alloy matrix are decomposed obviously. The dendrite decomposition is more serious with increased Rare-earth content, and the quasicrystal Mg32(Al, Zn)49 disappears. When the rare-earth content is 1%Ce~2%Ce, the alloy mainly consists of needle-like, dot-like, or clustered Al4Ce and Al8Mn4Ce phases with a small amount of Al4La. When 2.8%Ce+1.2%Nd mixed rare-earth was added, the Al8Mn4Ce phase was not found in the alloy but mainly composed of Al3Nd and Al4Ce rare-earth phases. These rare-earth phases were radiative needle-like, willow leaf-like, rod-like, spot-like, layer-like, and a little irregular block. The as-cast AEZ641(2.8 wt.% Ce+1.2 wt.% Nd) magnesium alloy has the best comprehensive performance, and the yield strength is 2% higher than the as-cast AZ61 alloy. Its tensile strength, hardness, and elongation are similar to as-cast AZ61 alloy. The fracture mechanism of as-cast AZ61 + xRE is mainly a cleavage-type brittle fracture.","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"147 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140007197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of a Method for Controlled Hydrogen Fragmentation of Medium-Carbon Steels to Reduce Their Crack Resistance 开发一种中碳钢受控氢破碎以降低抗裂性的方法

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2024-02-27 DOI: 10.1007/s11223-024-00600-4

V. R. Skalskyi, I. M. Dmytrakh, O. T. Tsyrulnyk, A. M. Syrotyuk, O. I. Zvirko

引用次数: 0

A study of the deformation properties of 10GN2MFA and 15Kh2MFA steels taking into account material damageability under plane stress conditions 考虑到平面应力条件下的材料破坏性，研究 10GN2MFA 和 15Kh2MFA 钢的变形特性

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2024-02-27 DOI: 10.1007/s11223-024-00607-x

P. O. Bulakh, O. M. Maslo

{"title":"A study of the deformation properties of 10GN2MFA and 15Kh2MFA steels taking into account material damageability under plane stress conditions","authors":"P. O. Bulakh, O. M. Maslo","doi":"10.1007/s11223-024-00607-x","DOIUrl":"https://doi.org/10.1007/s11223-024-00607-x","url":null,"abstract":"The paper presents the results of an experimental study of the deformation properties of 10GN2MFA and 15Kh2MFA steels at different ratios of principal stresses under cyclic loading conditions. Applying the proposed phenomenological approach of an improved elastic-viscoplastic model allows one to qualitatively describe the effects of the influence of structure degradation under the action of temperature and force factors that accompany the operation of actual structural elements significantly affecting the regularities of deformation and damageability and the strength of structural materials under combined stress conditions. An evaluation of the variation rate in the homogeneity of the studied steels at different ratios of principal cyclic stresses under cyclic creep conditions is presented. Based on the experimental results, correlation dependences between the relative values of the homogeneity coefficient and the function of the deformation properties of the material and the type of stress state were obtained, which significantly simplifies the determination of the parameters characterizing the limiting state of the structural element.","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"52 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139981033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Investigation of Member Stiffness in Composite Sandwich Bolted Connections 复合材料夹层螺栓连接中构件刚度的数值研究

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2023-12-22 DOI: 10.1007/s11223-023-00590-9

{"title":"Numerical Investigation of Member Stiffness in Composite Sandwich Bolted Connections","authors":"","doi":"10.1007/s11223-023-00590-9","DOIUrl":"https://doi.org/10.1007/s11223-023-00590-9","url":null,"abstract":"Member stiffness in bolted connections has been widely studied for homogenous and isotropic materials contrary to composite sandwich ones. Therefore, a numerical simulation based on the augmented Lagrangian algorithm to solve contacts problems is conducted in ANSYS software to investigate various preloaded sandwich bolted joints with carbon and glass laminate skins and two types of foam cores. Tested samples show a rise of the ratio of maximum shear stress to maximum principal stress when the applied preload increases considerably which improves the risk of core failure, additionally, an analytical approximation of stiffness at preload is proposed, for that, a search algorithm is used to deduce the expression of the equivalent elastic modulus of tested joint members and a distance correlation method is applied to determine the theoretical formulation of the introduced stiffness model whose accuracy is optimized through analyzing results of root mean square error (RMSE) of its mathematical approximations , the convergence of the chosen model is ensured for all tested samples except the ones having the most rigid skins with the greatest elastic modulus (209 GPa). Furthermore, the equation introduced by Zhang and Poirier concerning the tension load causing a bolted joint separation is adapted and validated with a percent error less than 13%.","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"70 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139020495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Asymptotic Analysis of Methods for Predicting the Fracture Toughness of Multiaxial Carbon Fiber Composite Laminates Using the Elastic Constants of the 0° Plies 利用 0° 层弹性常数预测多轴碳纤维复合材料层压板断裂韧性的渐近分析方法

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2023-12-22 DOI: 10.1007/s11223-023-00594-5

M. Y. Abdellah

引用次数: 0

Vibrodiagnostics of the Edge Crack-Type Surface Damage in a Cantilever Composite Beam at Main, Super-, and Subharmonic Resonances 主谐波、超谐波和次谐波共振时悬臂复合梁边缘裂纹型表面损伤的振动诊断技术

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2023-12-21 DOI: 10.1007/s11223-023-00578-5

E. O. Onyshchenko, V. V. Matveev, O. L. Derkach, O. E. Bohinich

引用次数: 0

Single and Combined Effect of Fine and Coarse Tire Rubbers on the Static, Microstructural, and Impact Properties of Concrete 细轮胎橡胶和粗轮胎橡胶对混凝土静态、微观结构和冲击性能的单一影响和联合影响

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2023-12-21 DOI: 10.1007/s11223-023-00596-3

M. Döndüren, M. Al-Hagri

引用次数: 0

Random Foam Meso-Model and Mechanical Properties of Foam Concrete 随机泡沫介观模型和泡沫混凝土的力学性能

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2023-12-20 DOI: 10.1007/s11223-023-00597-2

N. Hu, F. Deng, W. R. Xu, Y. J. Deng, J. Q. Yang, J. Zhang, R. Yang

引用次数: 0

Elastoplastic Fracture Mechanics Approach to the Crack Growth Rate Computation of Modified Pipe Steels 计算改性钢管裂纹生长率的弹塑性断裂力学方法

IF 0.7 4区材料科学

Strength of Materials Pub Date : 2023-12-06 DOI: 10.1007/s11223-023-00584-7

V. D. Makarenko, S. S. Pobeda, Yu. V. Makarenko, S. Yu. Maksymov, V. I. Gots, S. M. Tkachenko, O. V. Vladymyrov, O. M. Horlach, I. V. Zadorozhnykova

{"title":"Elastoplastic Fracture Mechanics Approach to the Crack Growth Rate Computation of Modified Pipe Steels","authors":"V. D. Makarenko, S. S. Pobeda, Yu. V. Makarenko, S. Yu. Maksymov, V. I. Gots, S. M. Tkachenko, O. V. Vladymyrov, O. M. Horlach, I. V. Zadorozhnykova","doi":"10.1007/s11223-023-00584-7","DOIUrl":"https://doi.org/10.1007/s11223-023-00584-7","url":null,"abstract":"A mechanophysical model for crack growth kinetics computation on stress corrosion fracture of modified 06G2BA and 08KhMCHA pipe steels is adequately expressed through the plane stress-strain state dα/dt and dJ/dt ratios that are dependent on the strain crack tip rate. The crack growth accelerated by an aggressive environment occurs under static and cyclic loading due to transient dissolution and repassivation processes at the crack tip. Such accelerations are divided into three categories, determined by the strain rate: mechanical cracking (fatigue crack and stationary plastic crack), corrosion-accelerated mechanical cracking (corrosion fatigue and corrosion-accelerated plastic crack), and sulfide stress corrosion fracture. Metallographic studies revealed the change in the crack nucleation and propagation mechanisms, from transcrystalline to intercrystalline, related to the viscoplastic and brittle structure of steel specimens cyclically loaded and simultaneously affected by a corrosive environment.","PeriodicalId":22007,"journal":{"name":"Strength of Materials","volume":"6 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138547446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0