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Multiscale modelling of the influence of damage on the thermal properties of ceramic matrix composites Jalal El Yagoubi1,a, Jacques Lamon1,b Jean-Christophe Batsale2,c 1University of Bordeaux/CNRS – LCTS, France – 33600 Pessac 2ENSAM - TREFLE, France – 33405 Talence a elyagoubi@lcts.u-bordeaux1.fr, b jacques.lamon@insa.fr, c jean-christophe.batsale@bordeaux.ensam.fr Keywords: CMC, Mechanical damage, Thermal properties, Interfacial properties, Thermography.
For this purpose, thermal management is a preponderant factor in material or structure design.
At larger scale, material characteristics are affected by damage: rigidity (mechanical effect) and thermal conductivity (thermal effect) decrease.
- Thus, the number of parameters required for modeling can be reduced, since the contribution of constituent properties to composite behavior can be well identified.
(Circles: experiment ; solid lines: simulation) (d) (c) (a) (b) Figure 5: Tensile stress-strain behavior (a), crack density (line) and Acoustic Emission data (circle) (b), and mechanical (c) and thermal properties (d) of Minicomposite M2.

The cooled material has dissimilar mechanical properties for each of discrete element.
Thus the mechanical properties (after simulation of load) will completely have different values when influence of injection molding is included. 1.
No factor is insignificant.
E) Export of the mesh with material properties of each element.
The unique combination of input factors (injection time, melt temperature and mold temperature) was set for each experiment.

Effects of technological parameters of thermo mechanical control process (TMCP) on microstructure and mechanical properties of the API X60 pipeline steels have been investigated.
The parameters of TMCP for obtaining better mechanical properties are given.
Effect of TMCP on Properties.
In some cases, it can reflect the result of accumulated deformation, so it is related to the mechanical properties.
Conclusion The TMCP parameters affect the microstructure and properties of the API X60 pipeline steels greatly.

Based on the test results and mixed principle of the relation between strength of composite and each of the components, the influencing factors on the drop in tensile performance index of the carbon fiber composite in use were analyzed.
Internal defects of the composite, possible load eccentricity in the test, size effect of the composite sample, and tensile properties of the resin may be the primary influencing factors.
The tensile performances index of the carbon fiber composite in use is generally under that offered by the manufacturer, and the primary influencing factors can be given as (1) The chymic structure of the carbon fiber and any tache in the making may form different defects.
(4) The mechanical performances index of the resin can affect the tensile strength of the gumming carbon fiber, so selecting the carbon fiber composite fabricated with high quality resin is necessary in the practical application.
Conclusions A number of factors can cause the drop of tensile performance index of the carbon fiber composite in use.

Confirmation of experiment was performed with the optimum parameter settings and the measured mechanical properties were compared with the predicted results.
Earlier researchers have been interested in the mechanical properties of binary hybrid nanocomposite.
Based on this issue, many factors that may affect the results need to be considered.
Finally, Analysis of Mean (ANOM) and Analysis of Variance (ANOVA) were used to identify the optimum factors to improve the tensile properties of prepared nanocomposites.
Bhattacharyya, Effects of clay type, clay/compatibiliser content and matrix viscosity on the mechanical properties of polypropylene/organoclay nanocomposites.

Rheology Properties of Ni/TiO2/SDBS EMR Fluids Suokui TAN 1,2, a, Xiaoping SONG 2,b , Hong ZHAO 3,cSong JI 1,d, WU Min 1.e, Hongyan GUO 1,f,Zhou Chunjiang1,g 1Ningbo Branch of China Academy of Ordnance Science, Ningbo, China 2 Xi, an Jiaotong University, Xi, an China 3 Dalian University of Technology, Dalian, China atansuokui@126.com, bxpsong@mail.xjtu.edu.cn, czhaohong@dlut.edu.cn, djisongnb@126.com,ewumin01@126.com , fnbguohongyan@163.com, zhouchunjiang@126.com Key words: Rheology properties, EMR fluid, Ni/TiO2/SDBS particle Abstract: By means of mechanical properties test, the relationship among shear ratio, concentration and electric field, magnetic field, electromagnetic field on the Ni/TiO2/SDBS EMR fluid properties have been analyzed.
Coupling electromagnetic field makes the properties improve.
There are many factors affecting the rheology behavior of Ni/TiO2/SDBS EMR fluid , such as particles radius, concentration, shear ratio and loading magnetic field, electric field or electromagnetic field and etc[8-10].
This paper focuses on the research of properties of Ni/TiO2/SDBS EMR fluid with different shear ratio under different electric field, magnetic field and electromagnetic field.
It is showed that particle size is main factor for EMR effect, a smaller size of particle can improve the properties of EMR.

Their exploitation serves to improve the mechanical and physical properties of a new material dedicated to filling and insulation in buildings.
Several research studies have been carried out on the mechanical and physical properties of concrete and mortars.
The extraction of fibers is carried out manually to avoid any kind of degradation of mechanical properties that may occur in the case of mechanical and chemical extractions [10].
All these factors show the decrease in compressive strength [13].
Bamaga, Physical and mechanical properties of mortars containing date palm fibers, Journal of Materials Research Express, 9 015 102 (2022) [13] B.

This is not only requests to improve the mechanical properties of concrete materials, but also needs to find a new kind of reinforcement material to replace the reinforced bars.
They further discussed pre-strain of SMA, cross sectional area of SMA and other factors, which has an effect on the deformation of SMA concrete beam.
They studied a new type of alloy-NiTiNb, and compared its mechanical properties with those of NiTi SMA.
They researched the mechanical properties of superelastic SMA concrete beams and ordinary concrete beams under the process of single point loading.
Then, they did a large number of studies to determine its mechanical properties and its constitutive model.

These factors make the properties degrade and life time short during all times of service.
When the equipment has been running for on hundred thousand hours, it is very important to understand the state of microstructure and properties of furnace pipes as the major component of reaction furnace.
So, the microstructure, mechanical properties and life prediction and assessment run for 100,000hrs is done in this paper.
The Mechanical property of reformer pipe at high temperature for short time is lower than the standard.
The mechanical properties at room and high temperature of inlet manifold are good. 3.2 Rupture property at high temperature and remaining life The rupture properties at 900ºC and 50MPa of different sections of reformer pipe are tested, the results are shown in Figure3.

As general mechanical parts, spherical plain bearings have good thermal stability, high dynamic load capacity, long-term life, flexible rotation and maintenance-free (solid lubrication) properties.
There were two important factors including the load and the mean sliding velocity which affected the life of spherical plain bearings, based on the thermal behavior analysis.
The properties of each directional lamina were defined.
The influence factors of system displacement consisted of two parts, radial load and temperature.
Wear status over practice working condition can be gotten by considering the two factors together.