International Journal of Materials and Structural Integrity最新文献

Effects of two-step heat treatment on the structure of cotton-derived activated carbon fibres 两步热处理对棉基活性炭纤维结构的影响

International Journal of Materials and Structural Integrity Pub Date : 2020-05-07 DOI: 10.1504/ijmsi.2020.107299

Tsuyoshi Yoda, Keita Shibuya, Kazuma Miura, H. Myoubudani

引用次数: 2

A new simple formulation for instantaneous coil diameter of a SMA helical spring SMA螺旋弹簧瞬时螺旋直径的一种新的简单公式

International Journal of Materials and Structural Integrity Pub Date : 2020-05-07 DOI: 10.1504/ijmsi.2020.107297

R. Santhanam, S. Sivakumar, Y. Krishna

引用次数: 0

Changing the physical, chemical properties of alkaline soil stabilised with industrial waste material tile dust 改变工业废料瓦尘稳定碱性土壤的理化性质

International Journal of Materials and Structural Integrity Pub Date : 2020-05-07 DOI: 10.1504/ijmsi.2020.107303

J. Saini, D. K. Soni, A. K. Mandal

引用次数: 1

Flexural fatigue analysis of fibre reinforced polymer concrete composites under non-reversed loading 纤维增强聚合物-混凝土复合材料在非反向荷载作用下的弯曲疲劳分析

International Journal of Materials and Structural Integrity Pub Date : 2020-05-07 DOI: 10.1504/ijmsi.2020.10029327

R. Bedi, S. Singh

{"title":"Flexural fatigue analysis of fibre reinforced polymer concrete composites under non-reversed loading","authors":"R. Bedi, S. Singh","doi":"10.1504/ijmsi.2020.10029327","DOIUrl":"https://doi.org/10.1504/ijmsi.2020.10029327","url":null,"abstract":"Results of an investigation on the flexural fatigue performance of poly-propylene fibre reinforced polymer concrete composites (PFRPCC) are presented. Flexural fatigue lives of PFRPCC beams at different stress levels were obtained using 100 kN MTS servo-controlled actuator. The specimens incorporated three weight fractions, i.e., 0.5%, 1.0% and 2.0% of polypropylene fibres. It has been established using graphical goodness of fit procedure that the fatigue life distributions of PFRPCC at various stress levels approximately follow the two parameter Weibull distribution with correlation coefficient exceeding 0.9. The results of graphical goodness of fit procedure have been reinforced with the help of Kolmogorov-Smirnov goodness of fit test and Anderson-Darling test of goodness of fit. The fatigue strength prediction models, particularly representing S-N relationships, have been examined and the material coefficients have been obtained for PFRPCC containing different weight fractions of fibres. Furthermore, using Weibull distribution, probability of failure has been incorporated into the fatigue life data of PFRPCC to develop S-N-Pf relationships, both graphically and analytically. The two million cycle endurance limits for PFRPCC containing different amounts of fibres have also been obtained.","PeriodicalId":39035,"journal":{"name":"International Journal of Materials and Structural Integrity","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42505736","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

Compressive strength enhancement of concrete using fly ash as a partial replacement of fine aggregate and model development 粉煤灰部分替代细骨料提高混凝土抗压强度及模型开发

International Journal of Materials and Structural Integrity Pub Date : 2020-05-07 DOI: 10.1504/ijmsi.2020.107301

H. Mahzuz, M. Hasan

引用次数: 2

Mechanics of contact interaction and deformation of main pipelines in the conditions of extreme external actions 极端外力作用下主管道接触相互作用与变形力学

International Journal of Materials and Structural Integrity Pub Date : 2020-05-07 DOI: 10.1504/ijmsi.2020.107302

N. Makhutov, M. Gadenin, A. Cherniavsky, O. Cherniavsky, V. Nadein

引用次数: 0

Effect of high temperature on fly ash-based alkali activated concrete compared to Portland cement concrete 高温对粉煤灰基碱活性混凝土和硅酸盐水泥混凝土的影响

International Journal of Materials and Structural Integrity Pub Date : 2019-10-21 DOI: 10.1504/ijmsi.2019.10024786

P. Jay, Thakkar Sonal, Dave Urmil

{"title":"Effect of high temperature on fly ash-based alkali activated concrete compared to Portland cement concrete","authors":"P. Jay, Thakkar Sonal, Dave Urmil","doi":"10.1504/ijmsi.2019.10024786","DOIUrl":"https://doi.org/10.1504/ijmsi.2019.10024786","url":null,"abstract":"Sustainability and durability of concrete structures is an issue in today's world. This paper presents comparative study of effect of high temperature on fly ash-based alkali activated concrete, activated with sodium-based activators and ordinary Portland cement concrete for same grade. Residual compressive strength, split tensile strength, flexural strength, bond strength and modulus of elasticity were evaluated for both concretes at temperatures of 27°C, 500°C, 700°C and 900°C. It was found that alkali activated concrete with fly ash had 16% reduction in compressive strength as compared to 40% reduction in ordinary cement concrete. Similarly reduction in other mechanical properties like split tensile strength, flexural strength, bond strength and modulus of elasticity for fly ash-based alkali activated concrete was less compared to ordinary Portland cement concrete. This indicates that alkali activated concrete can be a viable alternative to ordinary Portland cement concrete during its exposure to high temperature. The highlights of the paper are: 1) mechanical properties of fly ash-based alkali activated concrete at elevated temperatures were evaluated; 2) effect of high temperature on fly ash-based alkali activated concrete and OPC concrete was compared and fly ash-based alkali activated concrete was found to be superior to ordinary cement concrete in all mechanical properties.","PeriodicalId":39035,"journal":{"name":"International Journal of Materials and Structural Integrity","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49265421","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

Modelling and characterisation of a magneto-rheological elastomer isolator device under impact loadings using interpolated multiple adaptive neuro fuzzy inference system structure 利用插值多元自适应神经模糊推理系统结构对冲击载荷下磁流变弹性体隔离装置进行建模和表征

International Journal of Materials and Structural Integrity Pub Date : 2019-10-21 DOI: 10.1504/ijmsi.2019.10024784

M. S. Rahmat, K. Hudha, Z. A. Kadir, N. H. Amer, N. Nuri, S. Abdullah

{"title":"Modelling and characterisation of a magneto-rheological elastomer isolator device under impact loadings using interpolated multiple adaptive neuro fuzzy inference system structure","authors":"M. S. Rahmat, K. Hudha, Z. A. Kadir, N. H. Amer, N. Nuri, S. Abdullah","doi":"10.1504/ijmsi.2019.10024784","DOIUrl":"https://doi.org/10.1504/ijmsi.2019.10024784","url":null,"abstract":"This paper presents the modelling and characterisation of a magneto-rheological elastomer isolator device (MREID) under impact loading using the adaptive neuro-fuzzy inference system (ANFIS) technique. The characterisation of an MREID under impact loading was performed using an impact pendulum test rig, and the data obtained from the experimental work was processed in form of force-velocity and force-displacement characteristics. In order to predict MREID behaviour in simulation analysis, multiple ANFIS models were proposed. A single ANFIS model represented a single kinetic energy produced by the impact mass used in experimental work. The experimental data was then used to train the ANFIS in predicting MREID behaviour and validating its performance. For verification, the prediction model, a parametric model (namely, the modified Bouc-Wen model) was developed, and the models were compared. The proposed interpolated multiple ANFIS model predicted the behaviour of the MREID with a high level of accuracy. The proposed model produced a better prediction than the modified Bouc-Wen model.","PeriodicalId":39035,"journal":{"name":"International Journal of Materials and Structural Integrity","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43754823","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

Environment friendly milling of Inconel-625 环境友好铣削Inconel-625

International Journal of Materials and Structural Integrity Pub Date : 2019-10-21 DOI: 10.1504/ijmsi.2019.103209

Pragati Singh, J. S. Dureja, Harwinder Singh, M. Bhatti

{"title":"Environment friendly milling of Inconel-625","authors":"Pragati Singh, J. S. Dureja, Harwinder Singh, M. Bhatti","doi":"10.1504/ijmsi.2019.103209","DOIUrl":"https://doi.org/10.1504/ijmsi.2019.103209","url":null,"abstract":"Inconel 625, having wide industrial applications, exhibits poor machinability because of rapid work hardening and poor thermal conductivity. Therefore, cutting fluids are utilised to remove heat and provide lubrication in the cutting zone, but their application poses serious environmental and health hazards, calling to minimise their use. Multi-walled carbon nanotube (NMQL) technique provides an effective alternative to flooded cooling-machining of Inconel and stainless steel. Current study evaluates performance of NMQL in terms of tool wear and surface finish during face milling of Inconel 625. To enhance thermal conductivity of MQL, soluble multiwalled carbon nanotubes (1% wt.) were mixed in vegetable oil. Cutting parameters were optimised to minimise tool wear and surface roughness and validation tests were also conducted under flooded and dry conditions to compare their performance with NMQL machining. Performance of cutting tool during NMQL machining was found to be 15.56% and 3.45% better than dry and flooded machining respectively, on the basis of tool wear (VB), and was 14.06% and 59.02% improved over flooded and dry machining respectively, in terms of surface roughness (Ra).","PeriodicalId":39035,"journal":{"name":"International Journal of Materials and Structural Integrity","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijmsi.2019.103209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44742943","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

Study on the adsorption of methylene blue by NaOH KH550 modified bagasse 氢氧化钠KH550改性甘蔗渣对亚甲基蓝的吸附研究

International Journal of Materials and Structural Integrity Pub Date : 2019-10-21 DOI: 10.1504/ijmsi.2019.10024785

X. Dai, Jiyuan Zhu

引用次数: 0