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The uniformity of the fiber dispersion is also the important factors affecting the compressive strength.
However, factors that affect the uniformity of the fiber dispersion are fiber length, fiber content and fiber surface roughness.
The whole structure became uniform, so the mechanical properties increased.
With the increase of fiber content, the whole structure became uniform, so the mechanical properties increased.
(3) The uniformity of the fiber dispersion is also the important factors affecting the mechanical properties of the cement-based.

Impact of fillers on mechanical properties of biomass composites Xiaohui An1,a, Peng Liu1,b , Qiang Meng1, Chenggong Su1 and Shuang Zhao1 1School of Mechanical Engineering, Shandong University, Jinan 250061, China azgaxh@163.com, b287166753@qq.com, Keywords: biomass, composite materials, filler, mechanical property.
Glenn [2] studied the tensile strength and elongation and other mechanical properties of the starch based degradable films, and analyzed its structure by scanning electron microscope.
Based on years of research on biomass composite materials, the paper first compares effect of the three kinds of fillers on the mechanical properties, compares the product foam structure, and determine a good selection of fillers.
Compressive strength: The static compressive strength is an important index to measure the compressive buffer performance, directly affecting the design scope and use of materials.
In the experimental process, sodium lignosulfonate shows good properties as dispersant and water reducer agency.

Welded joint is inhomogeneous and composed of seam zone, heat affected zone (HAZ) and base zone, and the whole strength of welded joint is related to the mechanical matching between base metal and seam metal [1].
Heterogeneity of welded joint results from the variation behaviors of geometry shape, forced state, microstructure, mechanical properties and thermophysical properties caused by the welding heat action of the local transition zone between the seam metal and base metal [2,3].
Mechanical Model The mechanical model of the welded joint is shown in Fig. 1, the crack is transverse in the center position along the interface of seam zone and heat affected zone II and the half length of the crack a=0.005m.
HL RL2 Base zone I Heat affected zone I Seam zone ML1 ML2 Base zone II ML1 Heat affected zone II RL1 Fig. 1 Mechanical model of inhomogeneous welded joint Because of the symmetry of the model, a half of the model is used and symmetry constraint is imposed on the symmetrical line.
The influence of changes of Poisson's ratio on stress intensity factors is not obvious, so Poisson's ratio is 0.3.

The properties of Roman cement are influenced by many factors, especially raw materials composition and burning conditions.
At present, this material has received considerable attention due to its excellent advantageous physical-mechanical properties and long service life.
The resulting properties of hardened Roman-cement based mortars can vary significantly because they are determined not only by the properties and composition of the binder but also by other factors such as the ratio of the binder and filler, type of aggregate, water to cement ratio, etc. [2].
Results Fresh mortar properties.
Hardened mortar properties.

The key factors affecting the quality of gas cylinders include hollow tube's chemical composition, rolling process, shape quality, gas cylinder spinning and heat treatment system.
Therefore, finding factors that affect mean and standard deviation are becoming the key steps.
Key Factors.
Because all of the tests were conducted under the same heat treatment system, the chemical composition was the only reason affecting the mechanical properties.
It will not affect mechanical properties as a whole.

Furthermore, these properties were less affected by the in vitro conditions.
Ambient and In vitro Mechanical properties The mechanical properties of mLLDPE (neat and nanocomposites), before and after the in vitro treatment are summarized in Table 1.
It is worth mentioning that, the level of nanofiller dispersion, nanofiller-polymer interaction, nanofiller orientation and nanofiller content are among the factors that determine the tensile properties of the nanocomposites produced [7-9].
The smaller amount of oxidants entering the molecular chains resulted in greater retention of mechanical properties.
The best ambient and in vitro mechanical properties were achieved when 3 wt% of organo-MMT was added.

Such porosity stabilizes the mechanical properties while also reducing the mean density of FGC.
The research team has analyzed how the formula and the technology could affect FGC properties using mathematics to design the experiments, as necessitated by the fact that the quality and durability of construction materials depends on a variety of factors.
The way the formula and the technology affect FGC properties is what defines the optimality of concrete-mixture formulas.
Multifactorial design of regression experiment was intended to discover how technology and formula could affect the physical and mechanical properties of FGC [1,5–7,20].
The goal was to apply a set of physical and mechanical methods to find how the fundamental technological factors could affect concrete properties and structure as well as the aggregate-mortar interface.

However, the factors that affect welding quality exist in the whole welding process.
The welding process stability evaluation module can collect electrical and light spectral signal for disturbance factors diagnosis during the welding.
The metallurgical structure and property forecasting module call the CCT diagram data base for predicting he metallurgical structure and mechanical property of the weld affected zone and weld metal.
After that, through calling the CCT diagram data base and chose the right criterion equations, the metallurgical structure and mechanical property of the weld affected zone and weld metal is predicted for different welding process.
Proof result shows that this module can optimize the welding parameter through predicting the metallurgical structure and mechanical property of weld.

It has good mechanical properties which are close to elastomeric materials in softness and flexibility.
The mechanical properties were determined by means of tensile and flexural test.
Mechanical properties The mechanical properties including tensile and flexural testing were carried out using Lloyd universal testing machine at room temperature, following the procedures as described in ASTM D412 and ASTM D790-07.
However, the morphology of polymer blend is a major factor affecting the overall properties of polymer blend and in this is case PLA/EVA blend.It is believed that PLA and EVA had a dispersed EVA domain in PLA matrix morphology.
The variation of EVA domain size will determine the mechanical properties of PLA/EVA blend.

The tensile tests at room temperature showed that the mechanical properties of the DSed Mg-Zn-xCa alloys were strongly affected by the content of Ca.
Mechanical Properties.
Mechanical Properties.
Table 2 Mechanical properties of DSed Mg-Zn-Ca alloy.
Jiang, calculation of schmid factors in magnesium: Analysis of deformation behaviors, Scr.