Search results

An answer is to create adhesive joints with properties gradient by using the nanostructuration.
To reach this objective, we propose an evolution of the Multi Adhesive Joints (MAJ): an adhesive joint presenting a gradient of mechanical properties.
In a first part, the morphological, mechanical and thermomechanical properties of the nanostructured thermosets versus time are performed.
Therefore, by combination of LTA peeling properties with HTA’ mechanical and adhesive properties, it would be able to formulate a joint with a mechanical properties gradient.
Leibler, « Chemistry and mechanical properties of epoxy-based thermosets reinforced by reactive and nonreactive SBMX block copolymers », Macromolecules, vol. 37, no 21, p. 8017‑8027, oct. 2004

The exposed coal due to the influence of water, rain and other external factors, some harmful ingredients such as sulfate, calcium oxide, trace element arsenic (As), fluoride (F), chromium (Cr) may be transferred to the surrounding water environment, pollution.
The bearing capacity of the foundation is an important index of foundation design, the correct assessment [4] of bearing capacity is to ensure that the building (structure) the key to safe and stable, but also one of the important factors affecting the entire construction project cost, it has received the attention of scholars at home and abroad.
Many factors affect the bearing capacity of the soil, such as water content, natural bulk density, internal friction angle, cohesion, due to the complexity of geotechnical properties, must carry on the unification of a mechanical model is not possible.
The Research Purpose of Bearing Capacity of Ashes Foundation Through the study of the properties of the ash soil settlement after many years, it analyses if it can be directly used as load-bearing stratum; and calculates the bearing capacity and settlement of the corresponding limit at the same time.The interaction between the pile and the furnace dust for many houses, calculates the corresponding settlement method, find out the slope treatment.
The existing of ash properties of the material are few,it takes the field sampling in order to study the direction, and have a experimental test.

First, it is closely related with spatial factors, every farmland has its own geographic location and boundaries.
Second, any agricultural system has many factors; each factor also contains many sub-factors.
For example, in the crops of biological factor, there are wheat, paddy rice, corn, cotton and other factors etc [2].
All of these factors increase the degree of difficulty of agricultural data acquisition.
For example, the crop’s geographic properties have been gotten by map or manual measurement; the crop’s growth properties have been measured by soil sampling and offsite laboratory analysis or by on-the-spot measurement.

The degree of compaction is a measure of the main evaluation index of road machinery compaction quality, but also affects the working characteristics of vibratory roller.
Many factors affect the compaction quality, mainly related to properties of compacted materials, compaction machinery of technical parameters and operating parameters, compaction construction technology, and so on.
The properties of compression material include material types, gradation, moisture content etc..
The degree of compaction calculated as follows: (1) In the formula: for field compaction of soil dry density; maximum dry density of compaction experiments similar soil With compaction operations, the compaction density of the material is gradually increased and mechanical properties will be changed accordingly.
Vibratory frequency of vibration is the important parameter affecting the movement of soil particles, reflecting the impact number of vibratory wheel on the pressed material impact in the unit of time.

The effect of the different tool configurations and sizes, and welding parameters on mechanical properties of FSWed joints were analyzed in detail.
The use of a numerical tool has allowed investigating the distribution of temperature for the welding configurations characterized by higher mechanical properties.
The mechanical properties of the welded joints were evaluated by means of tensile tests performed at room temperature on specimens, machined from the friction stir welded blanks with the loading direction perpendicular to the welding line.
The FSWed joints, showing the higher mechanical properties in terms of ultimate tensile strength and ultimate elongation, were obtained with a pinless tool characterized by a shoulder diameter of 19 mm.
Simoncini, Mechanical properties and microstructure of joints in AZ31 thin sheets obtained by friction stir welding using ‘‘pin’’ and ‘‘pinless’’ tool configurations, Materials and Design 34 (2012) 219–229

Crew pressing and extruding-expelling extraction processes denature protein to render functional properties poor for food and meal use.
Furthermore, the residual hexane in the commercial oil is noxious, which will affect consumer health.
Screw pressing and extruding-expelling extraction processes of oil from soybean leave 7-8% residual oil contents in the soybean meal [2] and denature proteins due to high heat expo- sure rendering the meal deficient in functional properties for food use or further fractionation [3,4].
Table1.Factor level coding table Code Factor EFSF Concentration（%） x1 Initial pH x2 Inoculation Volume (%) x3 - 1.682 4.477 7.159 4.318 - 1 5.5 7.5 5 0 7 8 6 1 8.5 8.5 7 1.682 9.523 8.841 7.682 Table2.Desing and results of response surface methodology Trial No.
AOCS Press. champaign. (2000) pp. 108-135 [2] Nelson LL, Wijeratne WB, Yeh SW, Wei TM, Wei LS, “Dry extrusion as an aid to mechanical expelling of oil from soybeans,” Am Oil Chem Soc, Vol.64 (1987): 1341–1347 [3] Heywood AA, Myers DJ, Bailey TB, Johnson LA, “Functional properties of extruded-expelled soybean flours from valueenhanced soybeans,” Am Oil Chem Soc , Vol.79 (2002):699–702 [4] Heywood AA, Myers DJ, Bailey TB, Johnson LA, “Functional properties of low-fat soy flour produced by and extrusionexpelling system,” Am Oil Chem Soc, Vol.79 (2002): 1249– 1253 [5] LiYang, Lianzhou Jiang, Zhaoguo Zhang, Haibo Wu, “Effect of Cellulose Degradation on Soybean Oil Extraction Yield through Extrusion and Expansion Processing,” Transaction of the Chinese society for agricultural machinery Vol. 02 (31) (2010): 166-172 [6] LiuYang, Lianzhou Jiang, YangLi, Haibo Wu, “Ultrasonic preirradiation effect upon aqueous enzymatic oil extraction from soybean,” China oil Vol. 34 (12) (2009):10-14

Factors influencing the bulk density and compressive strength of the wall materials were discussed in detail.
The raw materials, mechanical properties and microstructure of the wall materials are charaterized.
Factors influencing the bulk density and compressive strength were investigated.
Fig.2 Mechanical properties of samples Fig.3 XRD patterns of wallmaterialssamples a b c d Fig.4 SEM photos of wall materials samples SEM photos of sample 3 were taken.
The key factors in obtaining superior mechanical properties for wall materials are the quantity and the quality of the hydration products.

The basic hypothesis of this article focuses on the study changes in mechanical properties of stainless steels ELC X01Cr18Ni10Ti under surface finish when drilling.
Mechanical properties in the solvating annealing, where part of the solution passes into the carbide, depending on the content carbon.
High strength, low thermal conductivity, high ductility and a tendency to high firming austenitic stainless steels are the main factors that make their machinability difficult.
As a result of deformation heating and heat, which always accompanies the process of cutting, are the tensions in this layer and change its physical and mechanical properties.
Increased demands on the quality of holes calls for considering a series of factors, for example: · the machine for the cutting process must be in good condition.

Preparation of alumina based ceramic foam is studied to observe the effect of the addition of corn starch on its physical, mechanical and morphological properties.
Its actual cell shape depends on several factors, including the fabrication process.
Linear shrinkage was affected by the increasing amount of corn starch.
Porosity is the main factor that affects the performance of ceramic foams [9].
Naghavi, Different pore size alumina foams and study of their mechanical properties, Ceramics - Silikaty 59 (2015) 6-9.

Low reciprocating load test and finite element analysis for three kinds of joints, Discussing the ultimate bearing capacity, hysteretic performance and fracture mechanic properties, Which the results shows that: the bearing capacity of improved joint has grater increased than the joint with endplate keep upright; when load to limit state, the flange plate of joint with endplate keep upright has strong fracture performance, this point has been proved during the experiments; According to the numerical distribution of cracks factor, can qualitative identify dangerous position of component, as a basis of fracture fortification for structure.
Portal frame light steel structure order already have this kind of node, but still haven’t clear design method, and waiting for the further research on the node’s mechanical performance.
(a)SP-1 (b)SP-2 (c) SP-2 (d) SP-3 Fig. 1 Joint detail drawing Test results and analysis Capacity and the end of the beam displacement analysis, Node in the repeated loads the load - strain curve is its ductility, energy dissipation capacity, strength, stiffness and other mechanical properties of a comprehensive reflection.
According to [5] conclusions of the study, RI cracking threshold value greater than 135 factors, the steel will be broken.
This shows that we can use the numerical simulation analysis to determine risk of breakage at the cross-section. (2): Calculation and analysis on cracking factors R1 under different loads, though with a certain discrete values, the general trend is the crack factor value increases with the load increases.