Mechanical Properties of Engineering Materials: Relevance in Design and Manufacturing

Poly(hydroxybutyrate-co-hydroxyhexanoate) (PHBHHx) has improved mechanical properties over the existing PHA and our results have shown that PHBHHx has better biocompatibility over polyhydroxybutyrate (PHB) and polylactic acid (PLA). Surface treatment with lipases dramatically changed the material surface properties and increased the biocompatibility of the PHBHHx. PHBHHx and its PHB blends had been used to make three dimensional structures and it has been found that cartilage, osteoblast, and fibroblasts all showed strong growth on the PHBHHx scaffolds. The growth was much better compared with PLA. The molecular studies also showed that mRNA encoding cartilages were strongly expressed when cartilage cells were grown on the PHBHHx. As PHBHHx has strong mechanical properties, easily processible and biodegradable, this material can be used to develop a new class of tissue engineering materials.

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Studies on physico-mechanical properties of some new light weight engineering materials

Polymer Engineering & Science ◽

10.1002/pen.760211607 ◽

1981 ◽

Vol 21 (16) ◽

pp. 1085-1091 ◽

Cited By ~ 9

Author(s):

Tejraj M. Aminabhavi ◽

Ramesh C. Patel ◽

Ningond S. Biradar

Keyword(s):

Mechanical Properties ◽

Light Weight ◽

Engineering Materials

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50CrMo4 Steel-Determination of Mechanical Properties at Lowered and Elevated Temperatures, Creep Behavior, and Fracture Toughness Calculation

Journal of Engineering Materials and Technology ◽

10.1115/1.4000669 ◽

2010 ◽

Vol 132 (2) ◽

Cited By ~ 12

Author(s):

J. Brnic ◽

M. Canadija ◽

G. Turkalj ◽

D. Lanc

Keyword(s):

Mechanical Properties ◽

Elevated Temperatures ◽

Tensile Tests ◽

Effect Of Temperature ◽

Uniaxial Tensile ◽

Design And Manufacturing ◽

Manufacturing Procedure ◽

Short Time ◽

Versus Strain

In this paper, some interesting, experimentally determined actualities referring to the 50CrMo4 steel are presented. That way, the mechanical properties of the material are derived from uniaxial tensile tests at lowered and elevated temperatures. Engineering stress versus strain diagrams for both mentioned temperatures, curves representing the effect of temperature on specimen elongation, and short-time creep curves are given. Notch impact energy test was also carried out. Taking into consideration the service life of the final product of the mentioned steel widely used in engine and machine technology, all of the mentioned data may be relevant during design and manufacturing procedure.

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The mechanical properties of natural materials. II. Microstructures for mechanical efficiency

Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences ◽

10.1098/rspa.1995.0076 ◽

1995 ◽

Vol 450 (1938) ◽

pp. 141-162 ◽

Cited By ~ 111

Keyword(s):

Mechanical Properties ◽

Mechanical Performance ◽

Mechanical Efficiency ◽

Companion Paper ◽

Performance Indices ◽

Natural Materials ◽

Buckling Resistance ◽

Engineering Materials

Many natural materials have exceptionally high values of the mechanical performance indices described in the previous, companion paper. For beams and plates of a given stiffness or strength, or for a column of a given buckling resistance, woods, palms and bamboo are among the most efficient materials available. Their mechanical efficiency arises from their combination of composite and cellular microstructures. In this paper we analyse the microstructures which give rise to exceptional performance, describe the fabrication and testing of model materials with those microstructures and discuss the implications for design of mechanically efficient engineering materials.

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Third international conference on constitutive laws for engineering materials: Theory and applications and workshop on innovative use of materials in industrial and infrastructure design and manufacturing

Mechanics Research Communications ◽

10.1016/0093-6413(90)90029-c ◽

1990 ◽

Vol 17 (1) ◽

pp. 32

Keyword(s):

Constitutive Laws ◽

International Conference ◽

Infrastructure Design ◽

Design And Manufacturing ◽

Engineering Materials

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Defects production and mechanical properties of typical metal engineering materials under neutron irradiation

Science China Technological Sciences ◽

10.1007/s11431-015-5910-4 ◽

2015 ◽

Vol 58 (10) ◽

pp. 1753-1759

Author(s):

Jian Liu ◽

XiaoBin Tang ◽

FeiDa Chen ◽

Hai Huang ◽

Huan Li ◽

...

Keyword(s):

Mechanical Properties ◽

Neutron Irradiation ◽

Engineering Materials

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Strong fibres and fibre-reinforced metals

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1964.0211 ◽

1964 ◽

Vol 282 (1388) ◽

pp. 43-52 ◽

Cited By ~ 8

Keyword(s):

Mechanical Properties ◽

Experimental Work ◽

Metal Matrix ◽

Technological Application ◽

Load Bearing ◽

Technological Value ◽

Engineering Materials ◽

Silica Fibre ◽

Properties Of Composites

The potentia Isuperiority of ceramics over metals as engineering materials, and their possible technological application as load-bearing fibres in a metal matrix, is discussed. The aluminium + silica fibre system is useful as a model and also appears to be of some technological value. A review is made of experimental work on fibre strengths, fabrication techniques and mechanical properties of composites of this type.

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The Change of the 3D Printing Product Mechanical Properties in the Function of Different Post-Treatment

Materials Science Forum ◽

10.4028/www.scientific.net/msf.659.183 ◽

2010 ◽

Vol 659 ◽

pp. 183-189 ◽

Cited By ~ 1

Author(s):

Norbert Krisztián Kovács ◽

József Gábor Kovács

Keyword(s):

Mechanical Properties ◽

3D Printing ◽

Product Design ◽

Treatment Method ◽

Post Treatment ◽

Cad Model ◽

Layer By Layer ◽

Design And Manufacturing ◽

Subtractive Manufacturing ◽

Manufacturing Technologies

Rapid prototyping (RP) has changed the method of product design and manufacturing. With the help of RP technologies a physical model can be created within couple of hours from any complex CAD model. RP technologies in contrast with conventional subtractive manufacturing technologies produce the end product by adding material layer-by-layer. 3D printing is one of the most widespread technologies in the industry. Because of the porous structure and bad mechanical properties of the models further post treatment is needed. Post treatment always means infiltration of the models, in case of gypsum and cellulose epoxy resin is mostly used. In our work the effect of post treatment method was examined on the mechanical properties of the pieces. The investigated pieces were prepared with four different setting of a printer.

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