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Composite materials that have low weight and high strength properties are currently one of the promising materials for a vehicle’s body.
The major advantages of composite materials are high in specific strength and stiffness properties in combination with design flexibility.
This type of impact can cause reduction in the mechanical properties of the structure.
The material properties are shown in Table 1.
The factors that might be contributed to such results are; · The type of material that is used in the present work is MAT_022 while in the reference literature the material used is MAT_054/055.

A key factor to meet these new criteria is to gain better knowledge on how to affect the fatigue limit of the cast iron used today.
The FWHM values indicate that the amount of deformation at the surface is smaller for the mechanical polished specimen and reaching the un-affected level earlier.
Even though the fatigue properties were improved, no obvious changes in the microstructure could be detected with ECCI.
Purdy, The effect of graphite on the mechanical properties of cast irons, Acta Metallurgica. 37 (1989) 1999-2006
Van Aken, Age Strengthening of Gray Cast Iron: Kinetics, Mechanical Property Effects, AFS Transactions. 111 (2003) 733-741.

Optimization Design of Heterogeneous Injection Mold Cooling System Li Ren1, a and Wenxiao Zhang1,b 1 School of Mechanical Engineering, Dalian Ocean University, P.R.
For the cooling system of plastic injection mold affects significantly the productivity and quality of the finial products, the cooling system design is of great importance.
In this paper, considering the location, size, number of cooling channels and mold material properties, the optimization design of heterogeneous injection mold cooling system is discussed to achieve simultaneously fast and uniform cooling.
Many aspects of production efficiency and part quality are significantly affected by the mold cooling process.
International Journal of Mechanical Sciences, 2006, 48: 430-439

Table 1 shows its mechanical properties some of which are derived from AIRBUS Toulouse.
Table 1: Mechanical properties Rm [MPa] Rp0.2 [MPa] A [%] KIC [MPa√(m)] ρ [g.cm-3] λ [W.m-1.K-1] C.H.M [HV] 900-1160 830 8-10 39 4.43 7 335.65 Machining was performed on a 10 kW HURCO 3-axis milling machine in face milling.
There are 4 factors at 3 levels and 2 factors at 2 levels.
These factors and levels are shown in table 2.
W., 1994, Materials properties handbook: Titanium alloys, ASM International

The veneer safe from damage is mainly depended on the properties of core materials due to the poor strength and toughness of porcelain.
It has been demonstrated that their mechanical performance relies on the intrinsic mechanical properties and properties matching of the inner core ceramic and the outer porcelain shell [2].
The mechanical properties of core ceramic and the performance of interface of core/porcelain affected the damage process of porcelain [2].
The mismatch of the flexural strength of the porcelain and core materials was also the mechanical factors influenced the crack path.
The FEA simulation revealed that the interfacial delamination observed in ziconia bi-layer composites was initiated by shear stresses building up along the interface due to the mechanical properties mismatch of the porcelain and core [2].

Result shows that the failure mechanism of typical elements changes from compression-shear failure into shear-tensile failure gradually with the increase of their position, for the effecting factors of the freedom and the loading from the hole.
In this paper, the dynamic finite element analysis software, together with concrete damage model, is employed to analyze the effects of the mechanism on rock properties of dynamic stress field of air-decked blasting in hole bottom.
Conclusions In this paper, the dynamic finite element analysis software, together with JHC concrete damage model, is employed to analyze the effects of the mechanism on rock properties of dynamic stress field of bottom-air-decked charge structure.
The conclusions are as follows: (1) For bottom-air-decked charge structure of the indirect initiation, elements stress state is complex because of affecting factors of the free surface and loading and unloading wave in blasting hole.
Melnikov: Reports of the Ⅵ science symposium on drilling, explosives, explosion operations and study of physical and mechanical properties of rocks, (Rolla, USA), Gosgortekhizdat (1962)

After the ultrasound sent into the specimen with subsurface defects, due to the loss effect of mechanical energy or friction at the interface of defects, it weaks and generates heat here[10-12], which leads to heat conduction and varying temperature field on the surface of the specimen.
Its property is shown in table 1.
An crack of 60×3×0.5mm was made through laser cutting, and micro cracks are generated at the crack tip by applying mechanical loads to the plate.
Table 1 Material’s physics properties parameters Density (kg/m3) Specific heat (J/kg·OC) Heat conductivity (W/m·OC) Modulus (GPa) Poisson’s ratio 7850 465 49.8 210 0.3 (a) Q235 plate (b) 50 multiple enlarged view of the microcrack F ig.2 The test specimen and enlarge view of the microcrack Experiment parameters.
So modulation frequency fm is one of the important factors affecting the testing quality.

Selection, Modeling and Prediction of Life of Stripper of Compound Die Sachin Kashid1,a, ShailendraKumar1,b and Hussein Mohamed Hussein2,c 1Department of Mechanical Engineering, S.V.
National Institute of Technology, Surat, India 2Advanced Manufacturing Institute, King Saud University, Riyadh - 11421, Saudi Arabia, and Mechanical Engineering Department, Faculty of Engineering, Helwan University, Cairo, Egypt akashid32@ gmail.com, bskbudhwar@med.svnit.ac.in, chmahuss@hotmail.com Keywords: Sheet metal, Knowledge based system, CAD Abstract.
Various factors affecting life of stripper are investigated through FEM analysis and the critical simulation values are determined.
Proposed ANN model for prediction of life of stripper The life of stripper depends on various factors such as sheet thickness, sheet material, stripping force.
In Ansys workbench software user needs to enter properties of stripper material.

Over the service life, the environment surrounding of the pipelines will cause defect on the pipelines due to several factors and subsequently affect the service strength and its remaining service life [5-9].
In stage 1, geometries of the steel pipe, putty and composite were modelled which similar to the published data and the material properties is then modelled and assigned.
Mohd, Effects of soil properties on the corrosion progress of X70-carbon steel in tropical region, Ships Offshore Struc., 12, 3 (2017) 991-1003. https://doi.org/10.1080/17445302.2016.1266905 [5] M.
Lau, Characterization of mechanical and thermal properties of epoxy grouts for composite repair of steel pipelines, Mater.
Md Noor, Mechanical properties characterization and finite element analysis of epoxy grouts in repairing damaged pipeline, J.

Lightweight aggregates (expanded clay, foam) can improve physical-mechanical properties, as well as significantly reduce drying shrinkage [2]. 3.
Modified constructive quality factor K2.
It is necessary to note that the cement type as well as admixture type and amount affect the density of foamed concrete mixture.
Korjakins, Durability properties of high-performance foamed concrete, Procedia Eng. 172 (2017) 760-767
Kara, Cavitation treatment of nano and micro filler and its effect on the properties of UHPC, ultra-high performance concrete and nanotechnology in construction, Proceedings of the 3rd International Symposium on UHPC and Nanotechnology for High Performance Construction Materials. (2012) 87-92