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Mechanical spectroscopy (MS) is a dynamic technique for the characterization of material properties providing information that can not be obtained otherwise, and is important for a variety of engineering fields.
Introduction Mechanical Spectroscopy (MS) is a dynamic technique for the characterization of materials properties, e.g. it measures the energy loss due to cyclic movement of lattice defects such as dislocation bowing or grain boundary sliding.
Thin Al foils for MEMS The mechanical properties of thin metal foils play a critical role in MEMS.
Montanari, Effects of C-Cr elementary aggregates on the properties of the MANET steel, J.
Varone, AA7050 Al alloy hot-forging process for improved fracture toughness properties, Metals 9 (2019) 64.

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.

Mechanical properties are the most important characteristics of insulating materials, since they determine working ability of the whole construction.
Therefore, study of insulating materials mechanical properties is an urgent task.
Mechanical properties of RIN-insulation specimens obtained during tensile tests Specimen No.
This shows that this type of insulation is not affected by the temperature factor.
It has been established that the most preferred method for mechanical properties of RIN-insulation determining is static bending test.

The mechanical properties of natural fibers are influenced by a variety of factors, including fiber type, fiber content, temperature, humidity, water absorption, and chemical treatment [14].
The impact on workability, thermal, and mechanical properties were evaluated.
The formation of intergranular pores resulting from fiber agglomeration in composites has deleterious effects on their mechanical properties.
As a result we note that the physical, mechanical, and thermal properties of concrete structures are influenced by porosity [38].
Effect of microstructure on the mechanical and thermal properties of lightweight concrete prepared from clay, cement, and wood aggregates.

Extending the range of finished product sizes from a given ingot or concast bloom or billet section is often limited by the minimum area reduction required to ensure effective central consolidation and final mechanical properties.
Table 1 below shows a top level summary of some of the key factors and actuators affecting consolidation rate/regime together with the constraints.
Only certification of Ultrasonic Testing (UT) profiles on finished or intermediate rolled bars is currently feasible to gather on-line non destructive properties of soundness.
Excel based consolidation tools for bloom and ingot have been developed for roll pass designers allowing cumulative predictions of consolidation factors (CF) amongst other rolling factors (RSF, spread, etc.).
Morris et al, Optimisation of deformation process for continuously cast billets to provide the most appropriate material properties.

This paper discusses the property of the air-jet spinning and the main structural factors affecting air-jet spinning yarn strength.
Introduction Traditionally, air-jet spinning yarn is given false twist by the revolution of pressed air stream, and it turns at a very high speed that is impossible with mechanical twisters.
Due to the distance between two nozzles intake and the relevant jet orifices, i.e. jet orifices position of two nozzles, affect air-jet spinning yarn strength individually, and interaction between them also affect yarn strength.
To evaluate individual and interaction effects between jet orifices position of two nozzles and yarn strength, we choose jet orifices position of two nozzles as experiment factor and adopt the two factors rotary experiment design.
The two-factor testing level coding is shown in Table 1, and the structure matrix table of two-factor second rotary experiment design is shown in Table 2.

Based on the similarity manufactured, the same type of quality characteristics, and similar factors that affect the quality is divided into a group, can be regarded as a similar process in a similar quality factors.
The matter-element theory was applied to adjust similarity of factors affecting the quality during the processing, to more accurately and efficiently divide the family of similarity process.
Using the similar properties or characteristics of similar factors, mapping the collection of process quality factors, which is to study the basis of the similarity of processes.
;Same level of operations staff;Same type of processing method;In the same environment (vibration, temperature, noise, etc.).Factors affecting the quality of processes and similar conditions shown in Table 1.
According to the degree of various factors that affect process quality, determine the weights of each factor.

The results show that: the lifting process is an important factor affecting the structural vibration; Displacement peak and load duration time are inversely proportional; Increase the load duration time can reduce the vibration of the structure.
Xiao Bo(2010) pointed out that the swing load is an important factor of the dynamic characteristics [2].
He Cheng-Zhong (2010) in the paper pointed out that under portal crane with Self-Funnel unloading process, funnel had the dynamic load impact, the impact would bring crane structure vibration sharply, the crane stress response and displacement response would be peak, unloading process was also an important factor affecting the structural vibration [7].Structural vibration can destroy some sensitive components of the Gantry Crane, so the research of the dynamics analysis under lifting process has an important theoretical value and engineering application value.
(2)The lifting load is one of the main factors to affect the structure dynamic characteristics, the structure vibration is intense, the displacement changes particularly fast
Study on Dynamic Properties of The Conveyor & Grab Crane Under Offloading Load [D].

The influence of the additives on the workability and mechanical properties of epoxy mortar are investigated by using the orthogonal experimental design method in this work, and all the additives can be bought easily from the market.
Such cracks affect the overall appearance and induce seepage.
The influence of the additives on the workability and mechanical properties of epoxy mortar were investigated by using the orthogonal experimental design method in this work, and the additives can be easily bought in the market.
The factors and levels of the orthogonal experiment are shown in Tab. 1.
Tab.1 Factors and levels of the orthogonal experiment factor level a / % b / % c / % d / % 1 30 0 0 0 2 40 5 5 1 3 50 10 10 2 4 60 15 15 3 Tab.2 Results of the orthogonal experiment Property No.

The direct influence of residual stresses on the functional behavior (the static and dynamic strength, chemical and electrical properties, fatigue, rust, etc.) of the component was relatively well known [3].
Experiment Set-up Material Properties, Cutting Tool and Equipment.
The curves of range analysis of the milling factors are shown in Fig.2
According to the discussion above, the cutting speed is the most significant factor affecting the residual stress.
l Cutting speed is the most significantly factor affecting residual stresses.