Journal of the Mechanical Behavior of Materials最新文献_第4页

Investigation of cycloaliphatic amine-cured bisphenol-A epoxy resin under quenching treatment and the effect on its carbon fiber composite lamination strength 脂环族胺固化双酚A环氧树脂淬火处理及其对碳纤维复合材料层合强度影响的研究

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0266

H. Sukanto, W. W. Raharjo, D. Ariawan, J. Triyono

{"title":"Investigation of cycloaliphatic amine-cured bisphenol-A epoxy resin under quenching treatment and the effect on its carbon fiber composite lamination strength","authors":"H. Sukanto, W. W. Raharjo, D. Ariawan, J. Triyono","doi":"10.1515/jmbm-2022-0266","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0266","url":null,"abstract":"Abstract Thermosetting epoxy resin polymer with cycloaliphatic amines curing agent has been widely used for a composite matrix with carbon fiber reinforcement. The utilization was increased due to the superior performance of this epoxy resin compared to other polymers. However, a changing operational environment has potentially reduced composite performance, which most likely begins with matrix degradation. This research applies thermal treatment by the quenching process sequence to the epoxy resin matrix and its reinforced carbon fiber composite (CFRP). The composite is made by epoxy resin diglycidyl ether bisphenol-A, curing with cycloaliphatic amine as matrix and strengthening carbon fiber mat/woven. Three times quenching treatment was performed by heating the specimen around the glass transition temperature and then dipped immediately in fresh water. After quenching treatment, the epoxy resin shows a reduction in tensile strength and elongation. Under infrared observation, epoxy resin does not significantly show changes in functional groups. Investigation under X-ray refraction also indicates no difference in a crystalline structure; this epoxy resin stays in an amorphous form before and after quenching. In contrast to the matrix, the quenching treatment of the CFRP composite above the epoxy resin s glass transition temperature revealed an increase in the interlaminar shear strength (ILSS). The matrix ductility reduction after quenching should be carefully considered for application in the form of epoxy resin sheets or CFRP composite construction materials.","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48306039","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

Effect of truck and train loading on permanent deformation and fatigue cracking behavior of asphalt concrete in flexible pavement highway and asphaltic overlayment track 汽车和火车荷载对柔性路面公路和铺层轨道沥青混凝土永久变形和疲劳开裂行为的影响

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0303

Dian M. Setiawan

{"title":"Effect of truck and train loading on permanent deformation and fatigue cracking behavior of asphalt concrete in flexible pavement highway and asphaltic overlayment track","authors":"Dian M. Setiawan","doi":"10.1515/jmbm-2022-0303","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0303","url":null,"abstract":"Abstract This research investigated the largest magnitude of displacement and horizontal tensile strain in several critical locations within the asphalt concrete (AC) layer in both the flexible pavement highway (FPH) and asphaltic overlayment track (AOT) structure using the numerical modeling method. The role of the hauling loads, speed, and loading cycles of freight truck’s dumps and freight train’s wagons on the mechanical behavior of FPH and AOT in terms of the permanent deformation and fatigue cracking was examined. Furthermore, the performance of the FPH and AOT in terms of permanent deformation and fatigue cracking characteristics due to various magnitudes of hauling loads, speed, and loading cycles of freight truck’s dumps and freight train’s wagons was compared to determine the optimum infrastructure for the freight coal transportation, based on the hauling capacity as well as the magnitude of permanent deformation and the horizontal tensile strain of the AC layer. According to the findings of this study, it is suggested to choose the AOT structure with fourth or sixth loading systems to run the freight coal transportation with the highest magnitude of the hauling capacity of 360,000 tons, since it produces the minimum magnitude of the permanent deformation and fatigue cracking of the AC layer. Future research should be conducted to examine the potential and the characteristics of fatigue cracking due to the contact between the edge of the sleeper and the surface of the AC layer in AOT.","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135008884","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

Evaluation of mechanical properties of fiber-reinforced syntactic foam thermoset composites: A robust artificial intelligence modeling approach for improved accuracy with little datasets 纤维增强复合泡沫热固性复合材料的机械性能评估:一种强大的人工智能建模方法，可通过少量数据集提高准确性

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0285

Nashat Nawafleh, F. Al-Oqla

引用次数: 3

Numerical analysis of reinforced concrete beams subjected to impact loads 钢筋混凝土梁在冲击荷载作用下的数值分析

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0232

Ihsan A. S. Alshaarbaf, E. M. Mouwainea, A. Said

{"title":"Numerical analysis of reinforced concrete beams subjected to impact loads","authors":"Ihsan A. S. Alshaarbaf, E. M. Mouwainea, A. Said","doi":"10.1515/jmbm-2022-0232","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0232","url":null,"abstract":"Abstract Numerical models for impact load assessment are becoming increasingly reliable and accurate in recent years. The processing time duration for such analysis has been decreased to an acceptable level when combined with modern computer hardware. The aim of this study was to represent a simulation technique and to verify the validity of modern software in measuring the response of reinforced concrete beam strengthened by carbon fiber-reinforced polymer (CFRP) sheet subjected to impact loads at the ultimate load ranges. In this investigation, ABAQUS/Explicit Software’s nonlinear finite element modeling had been used. The response of the impact force–time history and the displacement–time history graphs were compared to the existing experimental results. The adopted general-purpose finite element analysis is verified to be capable of simulating and accurately forecasting the impact behavior for structural systems. In addition, a parametric analysis was carried out to gain a better knowledge of the performance of reinforced concrete beams under impact loading. Four parameters had been changed among the analyzed beams such as impact velocity, impact mass, CFRP sheet thickness, and compressive strength of concrete. Generally, it has been found that using a CFRP sheet in strengthening reinforced concrete beams can greatly improve the members’ impact behavior by improving stiffness as well as increasing load-carrying capacities. The enhanced performance characteristics of strengthening beams under impact loads correlate with the applied kinetic energy and CFRP thicknesses. Finally, for beams with high compressive strength, the deflection values were reduced because of the increase in stiffness.","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42807143","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

Investigation of machining characterization of solar material on WEDM process through response surface methodology 利用响应面法研究太阳能材料电火花线切割加工特性

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0291

Anisha Kumar, R. Singh, Renu Sharma

{"title":"Investigation of machining characterization of solar material on WEDM process through response surface methodology","authors":"Anisha Kumar, R. Singh, Renu Sharma","doi":"10.1515/jmbm-2022-0291","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0291","url":null,"abstract":"Abstract The photovoltaic sector needs a high-throughput slicing method that produces minimal waste to meet rising demand. Wire electric discharge machining (WEDM) has emerged as an alternative slicing method in recent research efforts. Polycrystalline silicon is sliced using the WEDM process with a zinc-coated electrode of Ø0.25 mm in diameter. Experiments were planned and conducted according to Box Behnken’s design of experiments. As inputs, seven different process parameters were used: pulse on time (PONT), pulse off time (POFFT), peak current (PC), spark gap voltage (SGV), wire feed (WF), wire tension (WT), and water pressure (WP). Response parameters measured were cutting speed (CS), surface roughness (SR), and kerf width (KW). Various process parameters have also been analyzed with ANOVA methods for predictive modeling. Based on experimental data, this study determines the appropriate optimal solutions via desirability functions. During the WEDM process, the PONT, POFFT, PC, and SGV significantly influence the discharge energy on the sliced surface. As a result of this study, CS of 0.78 mm2/min, SR of 2.87 μm, and KW of 0.70 mm were observed at the optimal settings of PONT of 119 μs, POFFT of 42 μs, PC of 38A, SGV of 36V, WF of 3 mm/min, WT of 2 kg and WP of 6 kg/cm2. Surface morphology was determined using scanning electron microscope and Energy dispersive X-ray to investigate the surface characteristics.","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41786412","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

Blood flow analysis in narrow channel with activation energy and nonlinear thermal radiation 基于活化能和非线性热辐射的窄通道血流分析

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0278

A. Tanveer, Z. Abidin

引用次数: 0

Utilization of hybrid fibers in different types of concrete and their activity 混杂纤维在不同类型混凝土中的应用及其活性

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0262

Mohammed Hadeed, Abeer M. Humad, Majid Al‐Gburi

{"title":"Utilization of hybrid fibers in different types of concrete and their activity","authors":"Mohammed Hadeed, Abeer M. Humad, Majid Al‐Gburi","doi":"10.1515/jmbm-2022-0262","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0262","url":null,"abstract":"Abstract In this work, the influence of using hybrid fibers on the mechanical properties of two types of concrete: high-strength concrete (HSC) and lightweight concrete (LWC) was studied. Using hybrid fibers instead of using only one type reduced the negative effect on concrete mechanical performance. The glass fiber (GF) and polypropylene fiber (PPF) were used in different contents ranged from 0.2 to 1% as weight % of binder content. Moreover, combinations of both fibers “GF + PPF” were used in contents % of “0.3 + 0.5%,” “0.5 + 0.5%,” “0.3 + 1%,” and “0.5 + 1%.” LWC mixes were prepared by replacing 40% of the coarse aggregate of reference mix with volcanic material (pumice) as a volumetric replacing. To produce HSC, the water-to-cement ratio was reduced to 0.3, 10% silica fume was added, and 1% super plasticizer was used to obtain the consistency. Compressive strength, splitting strength, and flexural strength tests were carried out. The results showed that using 0.7% GF displayed the highest increases in compressive, splitting tensile, and flexural strength of HSC and LWC mixes. Furthermore, GF exhibited better performance and higher values in compressive, splitting tensile, and flexural strength tests in comparison with PPF. The optimum hybrid fiber content displaying the highest increment of all tested properties in both concrete types, HSC and LWC, was “0.5% GF + 0.5% PPF.”","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49071655","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

Effect of post-processing treatments on mechanical performance of cold spray coating – an overview 后处理对冷喷涂涂层力学性能的影响综述

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0271

M. Ashokkumar, D. Thirumalaikumarasamy, Tushar Sonar, M. Ivanov, S. Deepak, Paventhan Rajangam, R. Barathiraja

{"title":"Effect of post-processing treatments on mechanical performance of cold spray coating – an overview","authors":"M. Ashokkumar, D. Thirumalaikumarasamy, Tushar Sonar, M. Ivanov, S. Deepak, Paventhan Rajangam, R. Barathiraja","doi":"10.1515/jmbm-2022-0271","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0271","url":null,"abstract":"Abstract The main objective of this review is to study the effect of post-processing treatments on the mechanical performance of cold sprayed coatings. The cold spray (CS) process is an evolving technology for the rapid production of coatings at almost low temperatures, creating a thin, dense layer of coatings and a massive level of the additive manufacturing process with low-phase transition and less oxidization. In this process, powder particles are quickened by a process gas to supersonic velocity and impinge on the substrate, thereby establishing a higher adhesive bond between the substrate and the plastically deformed condition and eventually producing a deposition with the texture of the layer. However, the cohesive behaviour and metallurgical bonding is lower because of the lowest atomic diffusion among various splats of CS process with defects like pores, voids, and micro-cracks in the coating surface. It affects the properties of coating. In order to enhance the surface properties of coating, post-treatments are required. Heat treatment, friction stir processing, laser remelting, and shot peening are advanced treatments used to improve the performance of CS coatings. As a result, the mechanical, tribological, and electrochemical properties of post-treated samples are improved compared to coated samples.","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42546352","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: 3

An atomistic study on the strain rate and temperature dependences of the plastic deformation Cu–Au core–shell nanowires: On the role of dislocations Cu-Au核壳纳米线塑性变形的应变速率和温度依赖的原子学研究:位错的作用

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0296

I. A. Atiyah, I. Marhoon, Raed K. Mohammed Jawad

{"title":"An atomistic study on the strain rate and temperature dependences of the plastic deformation Cu–Au core–shell nanowires: On the role of dislocations","authors":"I. A. Atiyah, I. Marhoon, Raed K. Mohammed Jawad","doi":"10.1515/jmbm-2022-0296","DOIUrl":"https://doi.org/10.1515/jmbm-2022-0296","url":null,"abstract":"Abstract Recently, Cu–Au core–shell nanowires have been extensively used as conductors, nanocatalysts, and aerospace instruments due to their excellent thermal and electrical conductivity. In experimental studies, various methods have been presented for producing, characterizing, and strengthening these structures. However, the mechanical behavior and plastic deformation mechanisms of these materials have not been investigated at the atomic scale. Consequently, in the present study, we carried out uniaxial tensile tests on Cu–Au nanowires at various tension rates and temperatures by means of the molecular dynamics approach. The Cu–Au interface was found to be the main site for nucleation of perfect dislocations, Shockley partials, and stacking faults due to the stress concentration and high potential energy arising from the atomic mismatch between shell and core layers. It was observed that an increase in the strain rate from 108 to 1,011 s−1 shortened the time required for the nucleation of dislocations, decreasing the dislocation density. This emphasizes that dislocation nucleation and slip mechanisms are time-dependent. Moreover, it was found that the interaction of Shockley partials can lead to the creation of lock dislocations, such as Hirth, Frank, and Stair-rod dislocations, imposing obstacles for the slip of other dislocations. However, as the tension temperature rose from 300 to 600 K, opposite-sign dislocations removed each other due to thermally activated mechanisms such as dislocation climb and dislocation recovery. Furthermore, the combination of Shockley partial dislocations decreased the stacking fault density, facilitating the plastic deformation of these structures. The yield strength and elastic modulus of the samples increased with the strain rate and substantially decreased as the temperature rose.","PeriodicalId":17354,"journal":{"name":"Journal of the Mechanical Behavior of Materials","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43974814","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 properties and durability of ultra-high-performance concrete with calcined diatomaceous earth as cement replacement 煅烧硅藻土水泥替代超高性能混凝土的力学性能和耐久性

IF 1.8

Journal of the Mechanical Behavior of Materials Pub Date : 2023-01-01 DOI: 10.1515/jmbm-2022-0272

M. Hasan, M. Jamil, T. Saidi

引用次数: 8