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Factors affecting the properties of the PLA/corn straw Fiber Foamed Material (hereinafter referred to as PFFM) are mainly adhesives, starch content, agent quantity, auxiliary material and foaming temperature.
Deformation Curve Process Parameters Selection and Influence on the Buffer Properties As you can see from Fig.2: sample 0 has the best bearing ability; with the increase of straw fiber, compression capacities of sample 1 and 2 decline.
The gelatinized starch granules embedded in them, and combines closely, so that the material has a certain mechanical strength [4].
When the quantity is high to a certain extent, the compressive strength decreased, mainly because the starch molecular chains tangle easily and form a cluster[5], space away from the big molecular structure, thus affecting the strength of materials.
Bhatnagar [5] found that adding talcum powder (Mg3 (Si2O5) 2 (OH) 2) of 5% into the amylose as nucleating agent for blend extrusion molding, can effectively reduce the density of the molded material, increase the percentage of the closed bubbles, and form a uniform porous structure.To sum up, by adding plasticizer, foaming agent and adhesive into the corn straw fiber, a degradable buffer packaging material with the similar mechanical properties to EPS can be developed.

Testing mechanical properties of composites often correlate a physical property with filler loading.
Mechanical properties of a composite were determined by several factors, they were the bond between resin matrix with filler particles, filler composition, particle size, volume, degree of matrix and filler polymerization, and filler distribution [1,2].
Composite filler volume also affects mechanical properties.
It affects that the filler and matrix didn’t mixed evenly and impacted on mechanical properties of the composite [1,2].
No tetragonal phase structure zirconia crystals in this prototype composite filler may affect the mechanical properties.

., Chang Chun 130011, China alijun.han@faw-vw.com, bzhujunjie@fawcar.com.cn Keywords: Al alloy, Cylinder block, Laser roughing, Plasma spraying, Mechanical properties, Microstructure, Quality check Abstract.
Via the analysis of microstructure, hardness, mechanical properties and machining dimension, it is suggested that the combination of laser roughing and plasma spraying can act as a feasible way to tailor the properties of surface layer and provide great potential to improve the practical applications of AACB in the field of automotive industry. 1.
In this work, several key factors are suggested for affecting the quality of the coated layer, including thickness, oxide proportion, oxide distribution, bonding force, porosity, hardness, interface morphology and etc.
Thus, in this work, three key factors are suggested, mechanical bonding, physical bonding, and metallurgical bonding.
Thermo-mechanical fatigue property and life prediction of vermicular graphite iron[J].

Compared with pure gypsum, gypsum mixture had better mechanical properties.
The fluidity of metals and alloys are important factors to affect the ability of filling [6-8].
The Pb-Sn alloy liquidity properties in gypsum mold was also investigated.
The length of Spiral sample in experiment indicated the main factors affecting alloy flow performance, including chemical composition, pouring temperature and pouring methods of alloy.
Liquidity of Pb-Sn alloy in the cast was restricted by many factors such as alloy ratio, casting pressure and pouring temperature.

Study on Mechanical Properties of Compound-umbrella Arch in Bias Tunnel Entrance Xiaohui Xuea, Zhijie Sunb, Zhongming Suc and Fei Songd Shanxi Transportation Research Institute, Key Laboratory of Highway Construction & Maintenance Technology in Loess Region, Ministry of Transport, Taiyuan 030006, China a582991719@qq.com, b46395114@qq.com, c375216207@qq.com, dsongf1980@163.com Keywords: bias tunnel; compound-umbrella arch; mechanical properties; monitoring and measurement; finite element analysis.
For a comprehensive analysis of the mechanical properties of compound-umbrella arch in the unsymmetrically loaded tunnel entrance, we focus on the force characteristics to optimize the structure of composite umbrella arch, and improve its economic efficiency.
For analyzing the mechanical properties of the compound umbrella arch in bias tunnel entrance, this paper monitors the pile base stress, the pile body stress, the steel frame stress and the vault crown settlement in Linwu tunnel.
There is no factor to interfere it, so it will work in long-term.
Fig. 7 The bending moment diagram Fig. 8 The axial force diagram Conclusion In the case of bias terrain, the pile bottom stress is uneven distribution, which will easily cause uneven settlement in basement, and affect the stability of the overall structure.

Therefore, the corrosion of rebar has been one of the main factors to cause the failure of concrete structures [6, 7].
The samples (Φ14mm ×450mm) are used for corrosion rate measure and mechanical properties tests.
The tensile mechanical properties, including yield strength, tensile strength and elongation, are tested by a hydraulic pressure universal testing machine.
And the corrosion rate calculation and mechanical properties tests are carried out.
These will affect the strength properties of rebar.

This study was conducted to determine the factors that may affect the compressive strength of fly ash-based geopolymer.
By looking at various factors that could potentially affect the compressive strength of geopolymer, this study intends to determine the contribution of these factors from the properties of the fly ash and the mixture composition.
Physical and chemical properties of the fly ash itself will greatly affect the results obtained.
Internal factors include the physical and chemical properties of fly ash.
Kumar, “Mechanical activation of fly ash: effect on reaction, structure and properties of resulting geopolymer,” Ceram.

The results of mechanical properties tests are shown in Table 3.
The mechanical properties of BOF slag after carbonation increased slightly.
According to the physical properties test results, the specific gravity and water absorption were affected by carbonation.
The mechanical test shows that the mechanical properties were improved after carbonation.
Navarro Ezquerra: Change of mechanical properties during short–term natural weathering of MSWI bottom ash.

Weld microstructures greatly influenced the mechanical properties of welded joints.
A detailed analysis was conducted on the weld zone composition, the microstructural, and mechanical properties.
Mechanical Properties.
Generally, the mechanical properties of the welded joint seemed in an excellent performance.
Mechanical and structural properties of similar and dissimilar steel joints.

This study involved the fabrication of the Al 2024 wall and the mechanical properties, deposition rate, and microstructural properties were analyzed.
This study proposed a unique strategy to increase the deposition rate without affecting the mechanical characteristics and bead geometrics due to high heat input.
This reduction was the primary criterion to eliminate the defects due to increased heat input which affect the bead geometry and mechanical properties.
The welding current was identified as an important variable affecting the strength of the welded joints.
The input factors considered are CW, TSN, and DNW and the output parameter is DR.